#WATERFALL SOFTWARE SOFTWARE#
All this work is documented as a Software Design Document (SDD).ģ. It defines the overall software architecture together with high level and detailed design. Design Phase: This phase aims to transform the requirements gathered in the SRS into a suitable form which permits further coding in a programming language. It describes the "what" of the system to be produced and not "how."In this phase, a large document called Software Requirement Specification (SRS) document is created which contained a detailed description of what the system will do in the common language.Ģ. Both the customer and the software developer work together so as to document all the functions, performance, and interfacing requirement of the software. Requirements analysis and specification phase: The aim of this phase is to understand the exact requirements of the customer and to document them properly. This model is named " Waterfall Model", because its diagrammatic representation resembles a cascade of waterfalls.ġ. The developer must complete every phase before the next phase begins. The steps always follow in this order and do not overlap. Winston Royce introduced the Waterfall Model in 1970.This model has five phases: Requirements analysis and specification, design, implementation, and unit testing, integration and system testing, and operation and maintenance.
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