The document is from a chapter about information systems in business today. It discusses how information systems are essential for businesses and describes their components and impact. It provides examples of how businesses use information systems for strategic objectives like operational excellence, new products/services, customer intimacy, improved decision making, competitive advantage, and survival. Specifically, it discusses how systems help Walmart with replenishment, Apple with new products, hotels with customization, and Verizon with managerial data.