Unified Communications and Collaborations (UC&C)

Software Requirements
Specification
for
Unified Communication &
Collaboration (UC&C)
Version 1.0
Prepared by Altanai ( tara181989@gmail.com )

8 July 2015

SRS for UC&C service Suite Altanai Bisht

Table of Contents
1.          Introduction
1.1       Purpose
1.2       Document Conventions
1.3       Intended Audience
1.4       Project Scope
1.5       References
2.          Overall Description
2.1       Product Perspective
2.2       Product Features
2.3       Classes and Characteristics
2.4       Operating Environment
2.5       Design and Implementation Constraints
2.6       User Documentation
2.7       Assumptions and Dependencies
2.8 Timelines
2.9 Future Road Map
3.          System Features
3.1      Session and Policy controller
3.1.1              Description and Priority
3.1.2              Sequences
3.1.3              Functional Requirements
3.2       Widget and widget's Dev API
3.1.2              Sequences
3.1.2              Sequences
3.4 Calendar
3.1.2              Sequences
3.5 Authentication

3.1.2              Sequences
3.6 Presence
3.1.2              Sequences
3.7 Real Time Analytics
3.1.2              Sequences
3.1.2              Sequences
4.          External Interface Requirements
4.1       User Interfaces
4.2       Hardware Interfaces
4.3       Software Interfaces
4.4       Communications Interfaces
5.  Other Nonfunctional Requirements
5.1       Performance Requirements
5.2       Security Requirements
5.3       Software Quality Attributes
6.1 Legal , Copyright and other notices

Revision History

Name Date Changes Version
TFX service suite 11 May 2015 First design 1.0
TFX service suite 8 July 2015 Advanced controls   2.0


1.          Introduction
1.1       Purpose
TFX service suite is set of components required to build an endtoend efficient and powerful
communication solution. It encompses of the followinng :

Signalling layer
1. Signalling server
2. Sessions database

Core components  :
1. TFX conf webpage
2. Embeddable TFX Conf iframe

Widget Layer Components :
1. Real Time analytics
2. Code
3. Draw
4. context share
5. Screensharing
6. File sharing
7. Recording
8. Rich group / private Messaging
9. Auto Notes
10. Slideshare widget

Session Layer components  :
1. Policy controller
2. Calendar
3. Notifications
4. Authentications
5. Address Book
6. Presence

7. Session analytics

1.2       Document Conventions
The document describes the software requirements for the process of building TFX
suite . TFX is the brand name and suite refers to the suite of services that it contains .
All components described as part of suite in this document are modular in nature and
need not be necessarily integrated to overall platform for it to work .
1.3       Intended Audience
1. Developers
2. Project managers
3. Marketing
4. Users
5. Testers

1.4       Project Scope
A unified communication , collaboration , conferencing solution . It should be marketed as
WebRTC SaaS ( software as a solution ). Enterprises should be able to host the solution in their
premises using our provided software components including servers . gateways and clients that
might be made as part of TFXconf.
1.5       References
http://socket.io/
http://www.webrtc.org/
https://simplewebrtc.com/
http://redis.io/
https://cisco.webex.com
http://www.webex.com/ciscospark/
http://en.wikipedia.org/wiki/Secure_Realtime_Transport_Protocol
http://tools.ietf.org/id/draftnandakumarrtcwebsdp01.html

2.          Overall Description

2.1       Product Perspective
This product is composed of the following components :

Signalling layer

1. Signalling server :
Provided socketio based signalling . Handles offer , answer and SDP transactions between peers
.
2. Sessions database :
Stores the mapping of users to sessions and their privileges and services .

Core components

1. TFX conf : Client product which actually enables users to  join a session
2. embeddable TFX Conf iframe : lightweight client embeddable like an iframe

Widget Layer Components

1. Direct Calls : User should be able to directly call anybody else on his network
2. Code : Users in a meeting should be able to
3. Draw :
4. Context Awareness :  Use  techniques like Text to speech , Message sniffing , page
detection  , public profile of members etc to find out the context of communication and
share with admin .
5. Screensharing
6. File sharing
7. Recording with save option
8. Group Messaging : n : n messaging
9. Private Messaging : 1 to 1 messaging
10. Auto Notes : Store session summary
11. Real Time Analytics : Use webrtc stats ,  network
12. Slideshare widget

Session Layer components  :


1. Session analytics :
Collect information from network status and client webrtc stats and sessions DB to show ,
currents number of sessions and their quality .
2. Policy controller :
Controls the policies for sessions . Admin portal is used to manage the services , sessions and
users .
3. Calendar :
Based on authentication  Third party API to control the session dates and timings
4. Notifications :
Based on authentication Third party API to control the process of sending notifications to users
either in form of Email or message on social networking platforms.
5. Authentications :
Third party API to control the user authentication process to join a session
6. Address Book :
Keep a list of contacts for user . Can also import through other social networking accounts using
XMPP .
7. Presence :
Keepalive heartbeat signals  to facilitate publish , subscribe and notify automatically .

2.2       Product Features
1. Easy to manage and schedule web calls
2. Admin , host , guest privileges control
3. Generic platform to fit for all scenarios like group discussions , webinars , eclassrooms ,
interviews , presentations etc .
4. To be marketed as SaaS ( Software as a Services ) and PaaS ( Platform as a service )
5. Provided with prebuilt features like screen sharing , recording ,Whiteboard ,
collaborative programming  , multi language chat . More services can be also be added .
6. Session and Policy Management
7. Extra Security
8. Rich set of configurable widgets recording , screen sharing , media control more ..
9. Browser to Browser / Browser to Device / Device to Device communication
10. Layered and Modular setup of components
11. Context Enabled , Immersive Experience
12. Developer friendly APIs and SDK


2.3       Classes and Characteristics
Sessions id ,date, time , purpose ,  admin , host , guests

2.4       Operating Environment
All WebRTC supported desktop and mobile browsers

2.5       Design and Implementation Constraints
1. Anti webrtc corporate or regulatory policies
2. hardware limitations  ie no mic or camera
3. software limitations ie no or unsuitable chrome browser
4. RAM and memory requirements
5. organization  has blocked access to TFX signalling server or TURN server

2.6       User Documentation
1. user manuals
2. online help
3. dev API tutorials
4. delivery formats and standards

2.7       Assumptions and Dependencies
● The users should have webrtc supported browser and allow VOIP communication in
enterprise policies .
● User must gave media permission for the camera and microphone access for video
sessions .
● Permissions should be given to share screen when asked by screen sharing widget.

2.8 Timelines
Milestone 1 : Signalling server , Sessions database , TFX conf

Milestone 2 : Authentication, Policy controller , calendar , Real time Analytics , more widgets


Milestone 3 : Presence Notification , Context sharing

2.9 Future Road Map
Road Map : Telco SIP Integration through protocol adapters

3.          System Features

3.1 Session and Policy controllers
A lightweight , very customizable clientside solutions to specify rules for various kinds of web
based meetings such as social meetup , classroom , business demo , presenterviewer scenarios
etc called WebRTC sessions .
Sample screens for Admin console as part of Session and Policy controller :

Sample Output JSON file to be shared among all peers:
{
"meeting" : {
"meeting_esssential":{
"meeting_name" : "officemeeting" ,
"description" : " offical meeting to discuss next year goals" ,
"password" : "kjwsgdkx"
},
"date_time": {
"date" : "12may2015",
"start": "16:00",
"end" : "21:00"

},
"meeting_settings":{
"meeting_type": "n:n audio only"
},
"invite_attendees":{
"host": "altanai.bisht@above-inc.com",
“aletrnative_host”:””,
"attendees":"nirbhay.kundan@abovee-inc.com"
},
"meeting_options":{
"chat_private": "y",
"chat_group": "y",
"video_hd":"y",
"file_transfer":"n",
"screen_sharig":"n",
"context_aware":"n"
},
"attendees_privileges":{
"save_print_chat":"n",
"view_participants_list":"y",
"record_session":"n"
}
}
}
3.1.2 Sequences

Policy controller will control the behaviour , privileges and properties  of every session
created on WebRTC communication platform.
Client side session controller
Roles and Privileges are maintained in JSON format
Sessions parameters can also change dynamically


3.2       Widget and widget's Dev API
A lightweight , very customizable clientside solutions to specify rules for various kinds of
web based meetings such as social meetup , classroom , business demo ,
presenterviewer scenarios etc called WebRTC sessions .


3.1.2              Sequences

Following types of widgets are required
1. Unique URL based session management
2. Direct Calls
3. Instant messaging ( public chat and private chat )
4. Audio Conferencing
5. Presenterviewer based video Streaming
6. Whiteboard
7. filesharing
8. screen sharing
9. calendar
10. Invitation alarms and notifications
11. Meeting Recorder
12. slideshare widget

3.3  TFX conf Web/Mobile Page and Embeddable iframe



A lightweight , very customizable clientside solutions to specify rules for various kinds
of web based meetings such as social meetup , classroom , business demo ,

3.1.2              Sequences

unified communication , collaboration , conferencing , calling solution.

3.4 Calendar


3.1.2              Sequences

Hold Scheduled and past calls for every authenticated user
sync with work calendar

3.5 Authentication
A lightweight , very customizable clientside solutions to specify rules for various kinds
of web based meetings such as social meetup , classroom , business demo ,


3.1.2              Sequences

Oauth 2.0 based
Open ID
support for third party authentication like google , Linkedin

3.6 Presence


3.1.2              Sequences

heartbeat keepalive signals
followed by answer by clients till they are in session

3.7 Real Time Analytics
Collects data to represent based on WebRTC stats of peers , sessions DB , network report
user connecting , disconnecting a session , location etc .

3.1.2              Sequences

Use webrtc stats to get real time stats
Store vital stats in DB for every session for future reference
Algorithm to calculate other graphs based on values stored in session DB

3.8 Context Awareness
Use algorithms and pattern to deduce context of communication from ongoing sessions
and share with admin in real time .

3.1.2              Sequences

Use frequently used words , location , user profile , session description etc to
share the context of communication with Admin .

3.9 User Profile Management
3.1.2              Sequences


3.9 Contacts
3.1.2              Sequences

4.          External Interface Requirements
4.1       User Interfaces
Admin portal
Manage users
Manage Widgets and Session Modules
Check Sessions Analytics


User TFX conf
Login screen

Meeting screen as a Host
Create a meeting
Add purpose
Add date , time , duration
Add email for host and guests
Set alarm / notification settings

Meeting screen as an Attendee
Join a Meeting with email and password


Call screen

Meeting screen

4.2       Hardware Interfaces
microphone access to web page
camera access to web page

4.3       Software Interfaces

4.4       Communications Interfaces
1. Signalling server communications protocol socketo.io
2. Media transmission protocol SRTP
5.  Other Nonfunctional Requirements
5.1       Performance Requirements
1. User Accounts Management
2. Peer to peer communication
3. Plugins / external resources required
4. Contacts Management

5. Calendar and Event Management
6. Third party integration
7. Conferencing
8. Customization
9. Embedding and Compressibility
10. Pushing updates
11. Device Dependence
12. Standards compliance
13. Developer support
14. Bandwidth Quality Adaption
15. Page load Time ( irrespective of  time to login )
16. Time between Call initiation and connection Browsers supported
17. OS Compatibility

5.2       Security Requirements
1. session security and privacy
2. user identity authentication
3. policies or regulations infringement
4. security or privacy certifications

5.3       Software Quality Attributes
1. adaptability
2. availability
3. correctness
4. flexibility
5. interoperability
6. maintainability
7. portability
8. reliability
9. reusability
10. robustness
11. testability
12. usability

6. Licensing
6.1 Legal , Copyright and other notices
All products under TFX suite will be property of Above Solutions .

Appendix A: Glossary

WSC WebRTC Session Controller
IP Internet protocol
VOIP Voice over IP
WebRTC Web based Real Time Communication .

Appendix B: Analysis Models

Appendix C: Issues List



Unified Communications and Collaborations (UC&C)

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