Srs for virtual eucation

Software Requirements
Specification
for

Virtual-ED
Version 1.0 approved
Prepared by:
Vickii Bacchetta, Udesh DeSilva, Celestino Francisco,
Danielle L. Green, Jose Saafigueroa, Slavica Pepovska
NJIT
October 15, 2008

Software Requirements Specification for Virtual-ED

Page ii

Table of Contents
1. Introduction.......................................................................................................4
1.1. Purpose .......................................................................................................4
1.2. Document Conventions................................................................................4
1.3. Project Scope...............................................................................................5
1.4. References...................................................................................................5
2. Overall Description...........................................................................................6
2.1. Product Perspective.....................................................................................6
2.2. Product Features..........................................................................................7
2.3. User Classes and Characteristics................................................................7
2.4. Operating Environment................................................................................7
2.5. Design and Implementation Constraints......................................................8
2.6. User Documentation.....................................................................................8
2.7. Assumptions and Dependencies..................................................................9
3. System Features...............................................................................................9
3.1. Instant Messaging........................................................................................9
3.2. Streaming Audio and Video.......................................................................11
3.3. Customizable User Profile..........................................................................13
3.4. Virtual-Space..............................................................................................15
3.5. Virtual-Space V2........................................................................................17
3.6. Test Admin – Virtual-Exam........................................................................19
3.7. Test Admin - Virtual-Exam V2....................................................................21
3.8. Clean GUI...................................................................................................22
3.9. Clean GUI V2.............................................................................................24
3.10. Enhanced file sharing/transfer and document collaboration....................25
3.11. Class lecture video/audio available as podcasts.....................................27
3.12. Application sharing for whiteboards.........................................................28
4. External Interface Requirements...................................................................31
4.1. User Interfaces...........................................................................................31
4.2. Hardware Interfaces...................................................................................34
4.3. Software Interfaces....................................................................................34
4.4. Communications Interfaces........................................................................34
5. Other Nonfunctional Requirements..............................................................35
5.1. Performance Requirements.......................................................................35
5.2. Safety Requirements..................................................................................35
5.3. Security Requirements...............................................................................36
5.4. Software Quality Attributes.........................................................................37
6. Other Requirements.......................................................................................38
7. Appendix A: Glossary....................................................................................39
8. Appendix B: Analysis Models.......................................................................41


Revision History
Name
Vickii Bacchetta
Udesh DeSilva
Celestino Francisco
Danielle L. Green
Jose Saafigueroa
Slavica Pepovska

Date
10/15/08

Reason For Changes
Creation

Page iii

Version
1.0


Page 4

1. Introduction
1.1. Purpose
This highly detailed Software Requirements Specification document explains and
describes all of the agreed upon requirements that will be implemented for the
VIRTUAL-EDU system, designed for NJIT. The document will provide the
underlining structure of VIRTUAL-EDU, in a manner that both the Developers
and the Customer will have a clear understanding of its functions, interface,
design and constraints. Once the documents are approved by NJIT, it will also
serve as a contract between the developers and NJIT.
This document is intended to be read and utilized by the development team of
VIRTUAL-EDU, including testers, programmers and project managers, the
administrators of NJIT and any stockholder interested in seeing what NJIT is
bringing forth to the university.
1.2. Document Conventions
The outline of this document will follow the table of contents found on the second
page of this document.
The outline is split into 6 sections.
Section 1 - Description of the purpose of the document and what it will
contain.
Section 2 - Overall description of the project
Section 3 - Highly detailed description of the system functional
requirements
Section 4 - External interface requirements that affect the system
Section 5 - Insight on other non-functional requirements
Section 6 - Glossary and DFD model diagrams of entire system
Each section is written with the intent that different users will read different
sections. The first two sections use universal language; while the next four
sections use technical language.
The requirements will be explained by their level of importance. Meaningful
requirements will be describe first and less meaningful requirements will be
describe last. Every requirement will be mentioned and explained with the same
high level of detail.


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The majority of the models showcased in this document will consist of data-flow
diagram (DFD’s)
1.3. Project Scope
The project being developed for NJIT goes by the name of VIRTUAL-EDU. The
requirements specified on this S.R.S. document coincide with the university’s
need for a new distance learning system which will enable professors to
communicate more effectively with students via a Secure Application Platform
that provides at the very least the following features (email, group chat, bulletin
board, and audio/visual tools). The proposed system will incorporate robust
features such as audio and video capabilities, in which students within the same
group or university can communicate via a portal that provides both visual &
audio functionality, file hosting and file management, user profiles with pictures,
better group collaboration tools, and online testing capabilities.
The document will satisfy our project scope by delivering well documented
specifications, along with highly detailed models. Furthermore, it will contain
comprehensive explanations of the functionality and constraints of each of the
following requirements.


Audio and video streaming capability/ podcasting (live and on-demand)



File hosting and file management tools



User profiles with pictures including integration with other campus
resources



Chat and group collaboration tools (Instant messaging)



Online testing tools with instant grading

1.4. References


IEEE Std. 830-1984 (1993, 1998)



IEEE Guide to Requirements Specification (an annotated IEEE Std 8301984)



IEEE Std.830-1984 - Example "SRS: The AUTOTELLER Automatic Teller
System"



www.moodle.org



www.webboard.njit.edu



www.blackboard.com




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www.oovoo.com//features/

2. Overall Description
2.1. Product Perspective
Virtual-EDU consists of an online website that allows users to create a classroom
like environment with the features that it contains. Once registered to the system,
a user can create a profile sharing his or her information with the rest of the
enrolled users. Users will be able to find commonalities with each other through
the user profile. Virtual-EDU also gives users the ability to store data and/or
important materials in a secure network location for future retrieval or present
usage. This particular data as well as other files may be shared or worked on
using Virtual-EDU extensive tools for file sharing and document collaboration.
Users can work together on a single document in real time or send their work to
other users via secure file sharing methods and protocols. If further
communication is need between users, Virtual-EDU has features such as instant
messaging, where users can hold single or group conversations via a secure
real-time communication based on typed text. However, if more efficient means
of communication are need, users have the ability to hold single or group
video/audio conferences, whereby the users will be able to see other users
streamed live in real-time.
The top level diagram below shows all of the user features that will be
implemented for the system.


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2.2. Product Features


Streaming audio and video (both live and on-demand) will allow users to
interact with faculty and fellow classmates over a streaming video and
audio, one-to-one or one-to-many connection. Also, learning materials can
be delivered through audio and video formats.



The instant messaging feature will allow users to interact with faculty and
fellow classmates via text-based format, one-to-one or one-to-many
connection.



File sharing and document collaboration tools allow users to efficiently
share and develop documents and reports within a group.



User profiles containing contact information, pictures, and other related
information on a student personal page. This page will only be accessible
to students and faculty enrolled in the same class. Only the owner of the
profile may make changes to it.



Users will have the ability to manage a private temporary hosting space.
Tools such as file uploading, directory creator, move, delete and rename
will be accessible.

2.3. User Classes and Characteristics
System Administrators: User class with domain system privileges which allows
them to maintain the entire system, manage enrollment and create virtual
classes. Users in this class have complete control and knowledge of the entire
system.
Administrative End User: User class with domain class privileges, which allows
them to maintain and support the class they are enrolled in, along with the other
enrolled users. Users in this class have zero knowledge of the back end of the
system; however, they know the front end of the application.
Limited End User: User class with limited class privileges, which allows them to
operate the front end of the system with limited read only permissions. Users in
this class will only be able to make modifications to their profile section.
2.4. Operating Environment
System Requirements - Hardware:


Platform: at least Microsoft Server 2003



CPU: at least Dual Core 3.6 MHz



Space: Minimum of 2 gigabytes




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Ram: Minimum of 4 gigabytes

System Requirements - Software


Web Service: Apache server



Other services: IIS 6.0 or later, .Net Framework 2.0 or later, video
and audio streaming.

User Requirements – Hardware:


CPU: at least 500 MHz



Ram: at least 512 MB



Recommended Peripherals: microphones, web camera, video and
audio cards.

User Requirements – Software


Browser: Microsoft’s Internet Explorer or Apple’s Safari, or
Mozilla’s Firefox.



Services: SSH client, FTP client, VPN client

2.5. Design and Implementation Constraints


The university will be in session during the development of the application.
Since current system downtime needs to be maintained at low levels;
system rollouts and system validation need to be scheduled during low
usage periods.



The current NJIT user database system required to run this application
may be outdated or in need of maintenance. Therefore the current system
may only house 250 concurrent users.



Not allow languages will be represented for online system documentation.



Only browsers from Microsoft, Apple and Mozilla will have functional
access to the application.

2.6. User Documentation
Both the enrolled students and faculty will be provided with printable manuals
through email and will have access to on-line tutorials. The system will also
provide an on-line help feature, providing the users with easy to read “how-to”
instructions. NJIT’s administration will be given an in-depth manual of the entire
system, so that they may support the system after development is complete.


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2.7. Assumptions and Dependencies
2.7.1 Current systems and databases will still be available for use and
archive.
2.7.2 Database will be modified to meet VIRTUAL-EDU‘s requirements.
New entities and relationships for the user will need to be added.
2.7.3 Staff is willing to accept, learn, and utilize the new system.
2.7.4 Users should have an adequate computer, network connection, and
webcam with microphone.
2.7.5 Users will have access to common programs, such as media players
for streaming.
3. System Features
3.1. Instant Messaging
3.1.1 Description and Priority
Instant Messaging is the feature allowing students and professors to interact with
each other and talk in real time. Instead of leaving each other messages on
boards and going to chat rooms where screens are not refreshed in less than 60
sec, students will be able to see who is online and talk to them immediately. If a
professor is marked online, students will be able to ask questions and receive
answers from the professor almost instantaneously. This feature is of High
Priority and students will be able to benefit from this feature because it will give
them the feeling of a real classroom, something that most students are
complaining lacks when taking an online class.
3.1.2 Stimulus/Response Sequences
User action: Log in to Virtual-Edu
Response: The user is logged in and all available features in the system
are shown in the menu
-------------------------------------------------------------------------------------------------User action: Click on the messaging software tool – Instant-Edu
Response: New pop up window shows up with list of contacts. Online
users are marked green and offline users are marked red.
-------------------------------------------------------------------------------------------------User action: Double click on the name of an online user


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Response: New window pops up, where real time conversion can be
initiated between parties
-------------------------------------------------------------------------------------------------User action: Click on the smiley button in the window
Response: A list is shown containing all available emotions to be used in
conversation
-------------------------------------------------------------------------------------------------User action: Click on the plus button in the window
Response: A list shows up that contains all other available online users
that can be invited to join the conversation
-------------------------------------------------------------------------------------------------User action: Double click on a name in that window
Response: The new user joined the conversation and it’s now a
conference between multiple people
-------------------------------------------------------------------------------------------------User action: Click on the file button in the window
Response: A new window pops up where the user will be able to browse
and look for a file in his system that he wants to send to the other party
-------------------------------------------------------------------------------------------------User action: Select the file
Response: The selected file is marked blue
-------------------------------------------------------------------------------------------------User action: Click on the send file button
Response: The file begins transmitting to the other party
3.1.3 Functional Requirements


REQ-1 - Users are limited to Windows XP, Vista or Mac- OS



REQ-2 - Users are limited to Internet Explorer, Mozilla Firefox and Safari
internet browsers


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

REQ-3 - Users must have pop-up windows enabled on their systems



REQ-4 - Users must enable java scripts on their systems to be able to
install Instant-Edu messaging software



REQ-5 - Users must have antivirus software installed so they can scan the
incoming files from other users of the system

3.2. Streaming Audio and Video
Streaming Audio and Video allows students and professor to make audio and/or
video calls between each other. The professor will have the ability to hold a video
lecture for the whole class or have one on one meeting with the students. This is
another feature that will give the students the feeling of a real classroom.
Students will have the ability of attending an online class and be able to see the
professor and colleagues and interact with each other. Professor will be able to
ask questions to students and expect an answer immediately. Professor will be
able to post the video lecture online and make it available for a later download.
This feature is of Medium Priority. Despite the lack of audio and video students
will still be able to interact in real time with the first feature – instant messaging.
-------------------------------------------------------------------------------------------------User action: Click on the messaging software tool – Instant-Edu
Response: New pop up window shows up with list of contacts. Online
users are marked green and offline users are marked red.
-------------------------------------------------------------------------------------------------User action: Double click on the name of an online user
Response: New window pops up, where real time conversion can be
initiated between parties
-------------------------------------------------------------------------------------------------User action: Double click on the Audio Button


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Response: The software calls the other user’s computer and awaits for
response
-------------------------------------------------------------------------------------------------User action: The user on the other side clicks on accept button
Response: The connection is established and the conversation between
two parties begins.
-------------------------------------------------------------------------------------------------User action: The user on the other side clicks on deny button
Response: The connection is not established and the user that initiated
the conversation will receive a message the other user is busy.
-------------------------------------------------------------------------------------------------User action: Double click on Video Button
Response: The software calls the other user’s computer and awaits for
response.
-------------------------------------------------------------------------------------------------User action: The user on the other side clicks on accept button
Response: The connection is established and the video transmission
along with audio transmission begins between two parties
-------------------------------------------------------------------------------------------------User action: Click on the hang up button
Response: The conversation between two users ends.
-------------------------------------------------------------------------------------------------User action: Click on the host a conference button
Response: New window pops up. User will be able to select online users
and invite them to join the conference.
-------------------------------------------------------------------------------------------------User action: Click on the accept button


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Response: User has become part of the video conference and be able to
follow an online audio/video lecture from the professor.





internet browsers









REQ-5 - Users must be connected on a high speed internet (DSL, Cable)



REQ-6 - Users must have their computers equipped with microphone and
web camera.

3.3. Customizable User Profile
Customizable User Profile will be feature that will allow users to customize their
profile to their taste. The user will be able to select/change their password,
update information about themselves (phone number, address). Users will be
able to change the background colors and menu layout on their profile page.
Users will have couple of different options to use if they wanted to, for example
leave a video and introduce themselves. Or put a link to a favorite book; give
some more info about them. Users will also be able to choose their font as well
as font color for their profile page. This feature will be of Medium priority. It will be
up to the user to choose, and this will in no way impact the way the other user is
setting up preferences. In other words, everyone’s profile page can look different
for each student.
-------------------------------------------------------------------------------------------------User action: Click on the setting up preferences button
Response: New menu shows up with all the available features.


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-------------------------------------------------------------------------------------------------User action: Click on the Contact button
Response: New text area will show up where users can put their contact
information, phone numbers, address etc.
-------------------------------------------------------------------------------------------------User action: Click on the button background color
Response: A new menu shows up that shows all the available colors that
the user can choose for background
-------------------------------------------------------------------------------------------------User action: Click on the video button
Response: New pop up window shows up that will give them opportunity
to start video recording and introduce themselves. The video will become
part of their profile page. It will be easier for students to associate with
each other when they actually meet the person on video. It will bring better
team performance.
-------------------------------------------------------------------------------------------------User action: Click on the info button
Response: Text area shows up where users can put some more info
about them, their strengths, and weaknesses, put favorite links etc.
-------------------------------------------------------------------------------------------------User action: Click on the font button
Response: New menu shows up that will give the choices for different
fonts that can be used to display the info on their profile page
-------------------------------------------------------------------------------------------------User action: Click on font size button
Response: A new menu shows up that will have all different font sizes
that the user can choose.
-------------------------------------------------------------------------------------------------User action: Click on layout menu


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Response: A menu with different layout choices will show up.
-------------------------------------------------------------------------------------------------User action: Click on password
Response: A new window pops up that will give the user the ability to
reset/change the password.





internet browsers






REQ-4 - Users must have web cam and microphone if they want to be
able to create an introducing video of themselves on their profile page

3.4. Virtual-Space
Virtual-Space consists of folder space set aside for each student to upload files
to. An uploading feature would be the only component available in the first
release, which would aid in handing in assignments. This feature is of medium
priority as email can still be used as a means for this type of document sharing.
The cost of implementing this feature would include insuring each class section a
space on an FTP server.
User action: Log in to Virtual-ED
-------------------------------------------------------------------------------------------------User action: Click on the File Hosting software tool – Virtual-Space
Response: Window displays file tree diagram of user’s uploaded files.
-------------------------------------------------------------------------------------------------User action: A user clicks the Browse button


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Response: Produce a window for the user to browse their machine to
select a file. Once file is selected, browse window would close and the
path to the selected file would show in the text box.
User action: A user clicks the Upload button
Response: Should upload the selected file and produce a window letting
the user know if the upload was successful. If no file is selected, a
window should let the user know they need to use the Browse button to
select a file. If the upload will cause the account to go over disk space
quota, the file should be still be allowed and an email sent to the
administrator and professor letting them know of the overage. The file
tree diagram should update with the new file name added to the list.


Virtual-Space Req 1: FTP management software on the server setup
with quota space, user authentication, and appropriate user rights.
a. For the first release, each class needs a quota space of at least 1GB
per student in that class. If the upload will cause the account to go
over disk space quota, the file should be still be allowed to upload and
an email sent to the administrator and professor.
b. Files causing the quota to be exceeded should not be allowed to
upload.
c. The students overall login should allow them access to the appropriate
folder, and their account should only have Write privileges.
d. The professor’s username should allow them access to the appropriate
folder and have Read, Write, and Delete privileges.
e. Firewall ports may need to be unblocked on both sides to
accommodate file transfers.



Virtual-Space Req 2: Users need Windows XP, Vista, or Mac OS



Virtual-Space Req 3: Users need Internet Explorer, Mozilla Firefox, or
Safari browser.



Virtual-Space Req 4: Users must enable pop-up windows.


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3.5. Virtual-Space V2
In the second release of Virtual-ED’s Virtual-Space features would be added to
include full file management for any uploaded files. In this release, FTP space
would be designated by student rather than by class section. Disk space quotas
would need to be implemented to preserve resources. Each student would be
able to upload files to share with team members or to turn in assignments.
Arranging by folders and deleting files would also be newly added capabilities.
This would incur a higher cost to accommodate more disk space, and would also
require an administrator to spend more time managing the FTP accounts. The
first release version of this feature was of medium priority, so adding more
capabilities to it would be of low priority as email is still a highly usable
alternative.
-------------------------------------------------------------------------------------------------User action: Click on the File Hosting software tool – Virtual-Space
Response: Window displays file tree diagram of user’s files and the
shared files of the classes’ other users. Displays buttons to upload new
files and share or download existing files.
-------------------------------------------------------------------------------------------------User action: A user clicks the Browse button
Response: Produce a window for the user to browse their machine to
select a file. Once file is selected, browse window would close and the
path to the selected file would show in the text box.
-------------------------------------------------------------------------------------------------User action: A user clicks the Upload button
Response: The program should provide a window for the user to select a
folder in their file tree for the file to be stored. Once selected, the program
should upload the selected file and produce a window letting the user
know if the upload was successful and the file name should be added in


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the appropriate folder of the file tree diagram. If no file is selected, a
window should let the user know they need to use the Browse button to
select a file. If the addition of the new file would put the user about their
disk space quota, a window should let the user know they cannot upload it
without first deleting other files.
-------------------------------------------------------------------------------------------------User action: On file tree, a user selects a file name and clicks Delete
button or presses Delete button on their keyboard.
Response: Window should ask user to verify the file deletion, if yes, then
the file should be deleted from the server and the name removed from file
tree diagram.
-------------------------------------------------------------------------------------------------User action: On file tree, a user selects a file name and drags it to
another folder
Response: The file should be moved to the new destination folder and
removed from the previous folder. The file tree diagram should be updated
to reflect the new structure.
-------------------------------------------------------------------------------------------------User action: On file tree, a user selects a parent folder and then clicks
New Folder
Response: A window should ask the user to enter a name for the new
folder. Once entered and the user clicks OK, the new file should be
created on the server and the file tree diagram should be updated to
include the new folder.
-------------------------------------------------------------------------------------------------User action: On file tree, a user selects a file name and clicks Download
button
Response: A window opens asking the user to select a folder on the
computer in which to download the file. Once selected, a copy of the file
is placed in that folder on the user’s computer.
-------------------------------------------------------------------------------------------------User action: On file tree, a user selects a file name and clicks Open
button


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Response: The typical operating system prompt asks the user to Save or
Open. If Save is selected, a window opens asking the user to select a
folder on the computer in which to download the file. If Open is selected,
the document will open using the appropriate program or it will prompt the
user to select a program to open the file with.


Virtual-Space Req 1: FTP management software on the server setup
with quota space, user authentication, and appropriate user rights.
a. For the first release, each student needs a quota space of 2GB. Files
causing the quota to be exceeded should not be allowed to upload.
b. The students overall login should allow them access to the appropriate
folder, and their account should only have Read, Write, and Delete
privileges
c. Firewall ports may need to be unblocked on both sides to



Virtual-Space Req 2: Users need Windows XP, Vista, or Mac OSX



Virtual-Space Req 3: Users need Internet Explorer, Mozilla Firefox, or
Safari browser.



Virtual-Space Req 4: Users must enable pop-up windows.

3.6. Test Admin – Virtual-Exam
Students who learn online still need to take quizzes and exams. Providing them
a real-time way to complete an exam is an excellent way to give it a more
classroom-like feel. Online exams can combine multiple choice, true/false, short
answer, and essay questions, just like in a paper exam. Using Virtual-Exam,
students can download an Excel spreadsheet or editable PDF file and fill in their
answers. Mac users will use the Microsoft Office version for their operating
system. Then using the file management feature, they can upload the completed
test within the allotted time period.


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-------------------------------------------------------------------------------------------------User action: Click on the Testing software tool – Virtual-Exam
Response: Window displays any untaken tests posted by their professors
as links the user can click on to open the test in a new window. For tests
that have already been taken, the name and class are listed along with a
score/grade.
-------------------------------------------------------------------------------------------------User action: Click on an untaken test
Response: Clicking on an untaken test will prompt the student to be sure
they want to take the test. If student selects Yes, a window will display
prompting the user to download the test file. Once download is complete,
a timer will start for the amount of time allotted by the professor. If the
student selects No, they will be taken back to the home screen for VirtualExam.
-------------------------------------------------------------------------------------------------User action: Click on an Upload Test
Response: This button will show for the duration of the test, ensuring that
the student can only use the time allotted by the professor. Clicking this
button will produce a browse window where the student can select the test
file and then upload it to the professor’s FTP folder.


Virtual-Exam Req 1: FTP management software on the server setup with
quota space, user authentication, and appropriate user rights.
a. For the first release, each class needs a private folder with Write
permissions only for student logins.
b. The professor’s username should allow them access to the class exam
d. Students need Excel installed and/or a PDF reader. Professors need
Excel and a PDF creator.



Virtual-Exam Req 2: Users need Windows XP, Vista, or Mac OSX


Page 21



Virtual-Exam Req 3: Users need Internet Explorer, Mozilla Firefox, or
Safari browser.



Virtual-Exam Req 4: Users must enable pop-up windows.



Virtual-Exam Req 5: Users need Microsoft Office or the related Mac
program set.

3.7. Test Admin - Virtual-Exam V2
Students who learn online still need to take quizzes and exams. Providing them
a real-time way to complete an exam is an excellent way to give it a more
classroom-like feel. Online exams can combine multiple choice, true/false, short
answer, and essay questions, just like in a paper exam. Using this version of
Virtual-Exam, students can download a file from any of the programs within
Microsoft Office. Mac users will use the Microsoft Office version for their
operating system. Then using the file management feature, they can upload the
completed test within the allotted time period.
-------------------------------------------------------------------------------------------------User action: Click on the Testing software tool – Virtual-Exam
Response: Window displays any untaken tests posted by their professors
as links the user can click on to open the test in a new window. For tests
that have already been taken, the name and class are listed along with a
score/grade.
-------------------------------------------------------------------------------------------------User action: Click on an untaken test
Response: Clicking on an untaken test will prompt the student to be sure
they want to take the test. If student selects Yes, a window will display
prompting the user to download the test file. Once download is complete,
a timer will start for the amount of time allotted by the professor. If the
student selects No, they will be taken back to the home screen for VirtualExam.


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-------------------------------------------------------------------------------------------------User action: Click on an Upload Test
Response: This button will show for the duration of the test, ensuring that
the student can only use the time allotted by the professor. Clicking this
button will produce a browse window where the student can select the test
file and then upload it to the professor’s FTP folder.
Virtual-Exam Req 1: FTP management software on the server setup with quota
space, user authentication, and appropriate user rights.
a. For the first release, each class needs a private folder with Write
permissions only for student logins.
b. The professor’s username should allow them access to the class exam
d. Students need Excel installed and/or a PDF reader. Professors need
Excel and a PDF creator.


Virtual-Exam Req 2: Users need Windows XP, Vista, or Mac OSX



Virtual-Exam Req 3: Users need Internet Explorer, Mozilla Firefox, or
Safari browser.



Virtual-Exam Req 4: Users must enable pop-up windows.



Virtual-Exam Req 5: Users need Microsoft Office or the related Mac
program set.

3.8. Clean GUI
This feature that will allow users to customize the online learning classroom to
their taste. The user will be able to select background colors and toolbars that
are viewed. Users will also be able to choose their font as well as font color. This
feature will be of Medium priority. Giving the users the opportunity to change
font’s size will give them a great benefit. Some like bigger font that is easier to
read, some like to use the smaller font giving them the opportunity to show more
features on the screen without having to scroll up and down. It will be up to the
user to choose, and this will in no way impact the way the other user is setting up


Page 23

preferences. In other words, everyone’s classroom can look different for each
student but still have the same features and functionalities.
-------------------------------------------------------------------------------------------------User action: Click on the Preferences button
-------------------------------------------------------------------------------------------------User action: Click on the Background Color menu within Preferences
menu
-------------------------------------------------------------------------------------------------User action: Click on the Font menu within Preferences menu
Response: New menu shows up that will give the choice for the font
-------------------------------------------------------------------------------------------------User action: Click on Font Size menu within Preferences menu
Response: A new menu shows up that have all different font sizes that
the user can choose.
-------------------------------------------------------------------------------------------------User action: Click on Toolbar menu within Preferences menu
Response: A menu with available toolbars will show. Selecting a toolbar
toggles if it shows or not. Check marks should show next to toolbars that
are currently selected for view.


Clean GUI Req 1: Users are limited to Windows XP, Vista or Mac- OS.


Page 24



Clean GUI Req 2: Users are limited to Internet Explorer, Mozilla Firefox
and Safari internet browsers.



Clean GUI Req 3: Users must have pop-up windows enabled on their
systems.

3.9. Clean GUI V2
The updated version of this feature will allow the user to customize the sections
of the page into different views. For example, some users like to see a file tree
on the left side and a file preview on the bottom of the page. Other users might
want to see both a file tree and messages without a preview pane.
-------------------------------------------------------------------------------------------------User action: Click on the Preferences button
-------------------------------------------------------------------------------------------------User action: Click on the Background Color menu within Preferences
menu
-------------------------------------------------------------------------------------------------User action: Click on the Font menu within Preferences menu
Response: New menu shows up that will give the choice for the font
-------------------------------------------------------------------------------------------------User action: Click on Font Size menu within Preferences menu
Response: A new menu shows up that have all different font sizes that
the user can choose.


Page 25

-------------------------------------------------------------------------------------------------User action: Click on Toolbar menu within Preferences menu
Response: A menu listing available toolbars show up. Selecting a toolbar
toggles if it shows or not. Check marks should show next to toolbars that
are currently selected for view.
-------------------------------------------------------------------------------------------------User action: Click on Layout menu within Preferences menu
Response: A menu with different layout choices will show up. Options to
select panes that show in users site, including file tree diagram for VirtualSpace, messages/post threads, class lecture pane, Instant-ED pane,
file/message preview pane, and Virtual-Exam pane. Suggested
organization layouts are also selectable from this menu. Panes will be
added or removed as (de)selected from menu and organized according to
selected layout.


Clean GUI Req 1: Users are limited to Windows XP, Vista or Mac- OS.



Clean GUI Req 2: Users are limited to Internet Explorer, Mozilla Firefox
and Safari internet browsers.



Clean GUI Req 3: Users must have pop-up windows enabled on their
systems.

3.10. Enhanced file sharing/transfer and document collaboration
Enhanced file sharing/ transfer and document collaboration will be a feature that
will allow students to have a Virtual hard drive space in the Virtual-Edu classroom
that they will be able to use for sharing files. Users will be able to upload their
documents, and eventually transfer them between other users/computers. The
files saved in the virtual hard drive space will be accessible to the user even if
user is accessing Virtual-Edu from a different computer. Benefit from this feature
will be that users that are constantly mobile and on the go can access the
documents and projects from any place; they can update their documents and
upload a revised version again. The latest version of the document will be always
available with just a click of a button. Priority for this feature will be medium for
the Second Release date.


Page 26

-------------------------------------------------------------------------------------------------User action: Click on the Virtual-Hard Drive
Response: New pop up window shows up with list of documents already
uploaded in the Virtual Hard Drive. The bottom of the window will show
how much space is available for use.
-------------------------------------------------------------------------------------------------User action: Click on upload button
Response: New window pops up, user can search for file that he wants to
upload from his computer to the Virtual Hard Drive
-------------------------------------------------------------------------------------------------User action: Click on the selected file
Response: System will begin file transfer with first checking if file with the
same name already exists in the system, if not transfer will continue, if
yes, user receives message: “File already exist, do you want to replace”
-------------------------------------------------------------------------------------------------User action: Click on the “yes” button
Response: File continues to upload
-------------------------------------------------------------------------------------------------User action: Click on “no” button
Response: The file is not uploaded and the user has the option to rename
the file and uploaded it under the new name. This way the user will have
the option of keeping both old and new file.
-------------------------------------------------------------------------------------------------User action: Click on the “send file” button


Page 27

Response: The other user will receive a message saying that someone is
trying to send them a file. And a window pops up saying: “Do you accept?”
-------------------------------------------------------------------------------------------------User action: User answer yes
Response: The file begins transmitting to the other party
-------------------------------------------------------------------------------------------------User action: User answer no
Response: The file transmission will fail





internet browsers









REQ-5 - Users must have antivirus software installed so they can scan the

3.11. Class lecture video/audio available as podcasts
This feature will enable professors to host their lectures as video and/or audio
podcasts. Students will be able to download or view as live streaming
videos/audios. This will be great feature that will give students the ability of
rewind and play again in cases where the student didn’t really understand the
lectures and feels that they need to listen/watch it again. This feature is not
available in a real classroom as once the lecture is done, the professor leaves
the classroom and students have to rely on the note that they were able to make
during the lecture. Conclusion, this feature will not only meets the expectations of
a real classroom but exceed them. Priority for this feature will be high for a
second release cycle.


Page 28

-------------------------------------------------------------------------------------------------User action: Click on the Podcast button
Response: New window shows up with list of available lectures. Audio
files will be in mp3 format and video lectures will be flash video format
-------------------------------------------------------------------------------------------------User action: Double click on the audio or video file
Response: Real player pops up and starts playing the lecture in live
streaming
-------------------------------------------------------------------------------------------------User action: Right click on the audio or video file
Response: Option for save as will pop up that will give the user ability of
downloading the lecture and being able to view/listen to it even when pc
doesn’t have an internet connection





internet browsers









REQ-5 - Users must have Real Player installed on their systems

3.12. Application sharing for whiteboards
This feature will enable the users to share programs enter meetings, share and
edit documents at the same time. The professor will be able to host a network
projector and hold a lecture almost the same as in a real classroom, projecting
power point slide and all students currently logged in will be able to follow what’s
going on in the class. Professor will be able to distribute documents to students


Page 29

(example syllabus) with the ability to lock the editing tools, so unauthorized
change to the document will be impossible. If professor makes a change or ads
to the syllabus or any other document the change will be instantly distributed to
all students that have those documents in their space. The professor will have
the ability to write on the whiteboard and students will be able to follow the
classes and professors writing with no problem. Priority for this feature will be
high for the second release cycle. Using network projectors will give a more
realistic feel to our Virtual Classroom and students will benefit from this feature.
Any user will be able to share a program on their computer with the rest of the
users currently logged in. Students will be able to use this same feature when
working on projects as teams, giving them the ability to all work on one document
at the same time.
-------------------------------------------------------------------------------------------------User action: Click on the Whiteboard-Edu button
Response: New pop up window shows up. Users will be able to join a
conference or host a new one. The user initiating the conference will setup
username and password and distribute the password to all users that
would like to join his/her conference. Once user has joined the conference
he/she will be able to see and interact will all the participants.
-------------------------------------------------------------------------------------------------User action: Click on share a program button
Response: New window pops up, that will show all the programs
available for sharing.
-------------------------------------------------------------------------------------------------User action: Click on a certain program from available choice
Response: This program will automatically be distributed to all the
participants, and all users will see the same screen.
-------------------------------------------------------------------------------------------------User action: Click on the file button in the window


Page 30

Response: A new window pops up where the user will be able to browse
and look for a file in his system that he wants to send to all participants.
Every participant will be able to make changes to the document and
change will be implemented on each participants screen.
-------------------------------------------------------------------------------------------------User action: Click on share button
Response: The entire desktop will be shared and everyone will be able to
see the whole shared desktop.
-------------------------------------------------------------------------------------------------User action: Click on the sign out button
Response: The user will leave the meeting conference.
 REQ-1 - Users are limited to Windows XP, Vista or Mac- OS
 REQ-2 - Users are limited to Internet Explorer, Mozilla Firefox and Safari
internet browsers
 REQ-3 - Users must have pop-up windows enabled on their systems
 REQ-4 - Users must enable java scripts on their systems to be able to
install Whiteboard-Edu software
 REQ-5 - Users must have antivirus software installed so they can scan the
 REQ-6 - Users must accept the privacy statement prior to using the
application sharing


Page 31

4. External Interface Requirements
4.1. User Interfaces
The user interface of the Virtual-ED system is designed with increased emphasis
on the user Human-Machine interface. The interface is compartmentalized by
competency to ensure that the user can easily navigate within the portal. Each
compartment has a distinctive focus with a minimalist approach. The user has
the capability to alter the interface as suited.

Welcome Screen 1
The initial entry (Welcome Screen 1) has three separate quadrants; each
quadrant has a specific function.


Help Feature: Feature is linked with the help desk staff of the particular
institution; anyone who has difficulty in logging on can choose this feature
to contact the system administrator.



Contact Us Feature: Will enable the user to look up a list of pertinent email addresses/phone numbers within the institution.



News Feature: The administrator has the capability to post current news
on this section as needed.


Page 32

Class Selection Screen 2
Enables the user to select the pertinent class, each class is highlighted for ease
of use.

Application Layout 3
Enables the user to choose a specific application to be used. To launch an
application click on the application icon, the application will open up on a
separate screen


Web Conferencing 4 (Sample
image from oovoo.com)

Page 33

Web Chatting Screen 5
(Sample image from oovoo.com)

Web conferencing feature enables
the user to interact with multiple
users within a given class. Each user
can chat with one another while the
session is open.

File Transfer Screen 6
(Sample image from oovoo.com)

Video Conferencing with multiple
users 4.1 (Sample image from
oovoo.com)
Instant messaging feature will allow
users to interact with faculty and
follow classmates over a text based
one-to-one or one-to-many
connection.

This screen is an extension of the
web conferencing feature; this
screen enables the users to view all
available chat sessions available at
any given time.
File transfer feature enables the user
to have the ability to manage a
private temporary hosting space.
Tools such as file uploading,
directory creator, move, delete and
rename will be accessible


Page 34

4.2. Hardware Interfaces


Display Monitor: It is recommended that a high resolution LCD or CRT
monitor be used for best results.



Input devices: All hardware interfaces will be provided by the operating
system, the system will require a keyboard and a mouse. In addition a
properly configured sound card and a voice input device will be needed to
utilize the conferencing feature.



Visual Input: The conferencing feature requires a high resolution video
input device. The device needs to be configured in accordance to
manufacturer recommended settings and should be in operation before
enabling the conferencing feature.

4.3. Software Interfaces


The Virtual-ED software has a seamless integration with the local
operating/hardware system. Once the user logs on to the Virtual-ED
system (screen.1), the interface will seamlessly manage the local
input/output/operating system, devices as needed



When using “Test administering” feature (applicable to Administrators
only), XL and PDF must be installed in the native machine to view the
downloadable reports. By default the reports will be saved to the “C:
Program files/Virtual-ED/Bin/My reports folder”, (Requires XL-2002 or
higher and Adobe Acrobat Reader 8 or higher)

4.4. Communications Interfaces


Web Browser: The system requires the use of IE or Fire fox, Safari as the
native web browser. It is recommended that current system performs
optimally with the suggested browsers.
o The users must have pop-up windows enabled on their systems
and must enable java scripts on their systems to be able to install
Instant-Edu messaging software.



Communication Standards: SSH client, FTP client, VPN client are used
for connection between two computing endpoints.



Data Transfer Rates: Recommended 1.5 MBPS Download speed (for
any download activities) and upload speed of minimum 128 Kbps.




Page 35

Security: Users must have antivirus software installed so they can scan
the incoming files from other users of the system, any commercially
available Antivirus is can be used scanning files.

5. Other Nonfunctional Requirements
5.1. Performance Requirements


The web conferencing feature of the system requires the workstation
utilized have at least the following minimum requirements:
o A minimum of 500 MHz
o 256 MB of available memory
o Mac-compatible Webcam and headset (preferred) or separate
webcam, microphone, and speakers
o Broadband internet access (cable, DSL, etc.)



The system requires the use of Internet Explorer, Safari, or Firefox as the
native web browser. It is recommended the current system performs
optimally with the suggested two browsers. The use of other than the
recommended browsers may cause performance issues that have not
been addressed by the software vendor.



The reporting functionality utilizes the Microsoft Excel (.XLS) and Adobe
Portable Document Format (.PDF) for report outputs. The following
recommended software must be installed in the local machine to fully
utilize the reporting functionality.
o Microsoft Excel Viewer or Microsoft Excel
o A PDF Reader such as Adobe Reader



System must be accessible on and off campus via broadband internet
connection and using required ID/Password combination.



System may require users to download program updates to become
compatible and compliant with system.

5.2. Safety Requirements


All users are responsible for securing a backup of any uploaded
data/content to the system in the event of an outage.


Page 36



The user is responsible for content uploaded. NJIT policy prohibits the use
NJIT facilities/assets for personal use.



Users may not use the system to upload or post data which is
discriminatory in regards to race, color, creed, religion, sex, age,
handicap, marital status, or national origin. Users may not upload or post
data which is inflammatory or derogatory.



In the event, inflammatory/derogatory content has been identified, the
content will be immediately removed and the appropriate authorities with
be notified resulting in possible disciplinary action.

5.3. Security Requirements


User must comply with all local, state, and federal laws when using
available resources. Any infringements or violations including but not
limited to: unauthorized use, harassment, exploitation of any gaps in the
portal, inflammatory/derogatory content, or defacing the system will result
in the appropriate authorities being notified.



The user is responsible for maintaining the user account. Action must be
taken by the user to prevent the user account from being compromised.



The user ID and the password should not be shared with anyone
(students/staff/or anyone else).



User passwords should be between 8 and 12 characters including letters
and numbers but excluding spaces.



The user should periodically change the password; currently the user
policy requires a mandatory password change every three months.



The information within the system is regarded private, however in the
event of an investigation by a legal authority, including by not limited to a
subpoena or audit, the information will be released to the proper
authorities for the purpose intended.



All archived chats, e-mail, file share, and IM Messages are governed by
the NJIT E-mail use policy. The user is encouraged to view the content at
the NJIT homepage for detailed use of the policy and restrictions and
limitations of the policy.



In the event your account has been compromised, notify the NJIT help
desk immediately. Refrain from using the infected account to
communicate with anyone else.




Page 37

The systems should adhere to the privacy policy set forth by NJIT and its
administration and also state and federal guidelines.

5.4. Software Quality Attributes


The system has an estimated 99% up time, though in an event of an
outage data loss can occur.



The Web-Conferencing features’ performance depends on the availability
of the bandwidth. The minimum of a broadband connection is
recommended to fully utilize Web-Conferencing feature.



The content is the responsibility of the users of the system; NJIT is neither
responsible nor liable for the accuracy or the correctness of the content.



The portal will be periodically unavailable due to necessary maintenance
upgrades. In the event of scheduled maintenance, the students/staff will
be notified at least 24 hours in-advance.


Page 38

6. Other Requirements


The system must be completed within the timeframe allotted for
development.



Appropriate funding must be acquired to make required upgrades to
existing systems, buy additional hardware and software, and acquire
skilled personnel to develop project.


Page 39

7. Appendix A: Glossary
SRS
Software Requirement Specification
DFD
Data Flow Diagram
Developers
Team D inc.
Customer
NJIT
EDU
Education
VIRTUALName of project to design for the customer.
EDU
User
Enrolled student and university’s faculty.
Protocols
A convention or standard that controls or enables the
connection, between two computing endpoints.
FTP
File Transfer Protocol is a network protocol used to transfer
data from one computer to another.
MB
Megabyte = 1,000,000 bytes.
GB
Gigabyte = 1,000,000,000 bytes.
MZH
Megahertz is used to measure the clock speed in hertz of a
CPU
GZH
Gigahertz is used to measure the clock speed in hertz of a
CPU
Streaming
A technique for transferring data such that it can be
processed as a steady and continuous stream.
Platform
Systems operation software.
Browser
Software to browser online content
On-Demand
A service or feature which addresses the user's need for
instant gratification and immediacy of use
Mac- OS
Macintosh Operating System
Windows XP an operating system by Microsoft released in 2001
Vista
the version of the Microsoft Windows client operating
system released in 2006.
WhiteboardApplication sharing for whiteboards available within VirtualEdu
ED.
Virtual-Hard
Application for file sharing/ distributing amongst users.
Drive
Podcasts
Series of audio or video digital media which will be available
for distributing over the classroom.
Instant-Edu
messaging software tool available in Virtual–ED.
DSL
Form of Broadband Internet Access. Digital subscriber line
that uses high frequency, while regular phones uses low
frequency on the same telephone line. This high frequency
gives users the ability to transfer data with higher speeds.
Cable
Form of broadband internet access that uses cable
Internet
television infrastructure. It gives users speeds up to 50
megabits per second for downloading and up to 384Kbit/s to
more than 20Mbit/s for uploading.


Page 40

8. Appendix B: Analysis Models

High Level Overview:
Data Flow Diagram_A : IIS663

NJIT DL
WEBPORTAL

N
USER logs/
authenticates
to WebServer

Y

Redirects
Student
Request

NJIT USER Web Portal:
Welcome Screen

NJIT Student
Home Page

Student
authenticates/
retrieves records

Student
selects class/
course

IIS663 Link
Queries student
elegibility

Queries Student DB
for each clas

Processes
request

HRM601 Link
CS656 Link
Course
Selection Link

Queries NJIT DB for
each class

NJIT Records D/B

STUDENTRecords
D/B

Process Request

Process Request

File Mgmt Tool
Testing Module
Instant MSG Module
Conferencing Module
Custom User Profile

Process
Selection

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