27-10-2012, 04:49 PM
Software Requirements
Software Requirements.pptx (Size: 338.51 KB / Downloads: 24)
Introduction
To introduce the concepts of user and system requirements
To describe functional and non-functional requirements
To explain how software requirements may be organised in a requirements document
Definitions and specifications
All the requirements of the system are expressed in software requirement document.
It is not a design document but contains what the system should do and how it should be done
SRS document helps to map the needs and wants of the customers to designers.
Nonfunctional Requirements
Nonfunctional requirements define characteristics of the software which do not change its behavior.
Users have implicit expectations about how well the software will work.
These characteristics include how easy the software is to use, how quickly it executes, how reliable it is, and how well it behaves when unexpected conditions arise.
Scope, Requirements ,Design
Many people have difficulty understanding the difference between scope, requirements and design.
Scope demonstrates the needs of the organization, and is documented in a vision and scope document
Requirements document the behavior of the software that will satisfy those needs
Design shows how those requirements will be implemented technically