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Waterfall methodology definition11/21/2023 ![]() ![]() ImplementationĪs the name implies, in this phase the source code is written as per requirements. It also contains interface details, error-message listings, dependency issues, inputs and outputs for each module. The Low-level Design document describes each module (pseudo-code), which enables the programmer to code directly from the document. The High-level Design created in the previous phase is disintegrated into separate modules. ![]() This involves designing actual software components. This phase ends with the creation of a High-level Design document. It includes a list and functionality of modules, correlation between these modules, architecture diagrams, and database tables. This is the first stage of system design and architecture. It helps define the overall system architecture, which is further divided into: a) High-level design phase In this phase, the system design is prepared which specifies hardware and system requirements, such as data layers, programming languages, network infrastructure, user interface etc. After thorough analysis, a Requirements Understanding Documents (RUD) is created. time, budget constraints) which can affect the development process. It is essential to consider any limitations and constraints (e.g. In this phase, all requirements of the project are analysed and documented in a specification document and a feasibility analysis is done to check if these requirements are valid. According to the International Software Testing Qualifications Board, the Waterfall Model consists of 6 phases: 1. The whole process is divided into sequential stages, and it is imperative to complete each phase successfully in order to move onto the next one. As the name implies, this model’s process of downward mechanism is similar to that of a waterfall. The Waterfall Model, also known as the Linear-Sequential Life-cycle Model, is one of the first process models introduced for software development. ![]()
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