Introduction Lifecycle models where developed in order to carry out tasks in a structured and logical way. Assuming that a project proceeds in a normal and orderly manor, there are steps that need to be followed, depending on what the particular project is. A good example of this would be; Requirements analysis, functional specification, design, implementation, testing and maintenance. There are several types of lifecycle models. Two of the most commonly used are the waterfall …showed first 75 words of 2617 total…

…showed last 75 words of 2617 total…approvals are obtained. This also includes error correction. The use of methodologies and lifecycles enables templates to be developed and evolve so the future development of systems can benefit. This could result in costs becoming less and less time used on development. As organisations become larger and more complex, the need for reliable systems becomes greater. The role of the systems analyst becomes more and more important and the development of future methodologies is inevitable.