In this tutorial, you will learn about System Engineering.
System Engineering: Information system analysis and design is a complex and stimulating process that is used to develop and maintain a computer-based information system. The analysis and design of the information system are driven from an organisational improvement process, systems are built and rebuilt for organisational benefits.
Information system analysis and design are based on the understanding of objectives, structures, and processes of organisations and the knowledge about the application of information technology for this purpose. Most organisation find it beneficial to use the standard set of steps that follows a life cycle for the development of a system. This life cycle of a system development is called System development life cycle (SDLC).
SDLC: The system development life cycle is a common methodology for system development in many organisation featuring various phases that mark the progress of the system analysis and design effort.
Any lifecycle appears at the first glance to be a sequentially ordered set of phases but actually, it is not. The specific steps and their sequence are meant to be adapted as required for a project management approach.
In any given SDLC phase the project can return to an earlier phase. In the system development life cycle, it is also possible to complete some activities in one phase in parallel some other activities of another phase. Sometimes the life cycle is an inactive i.e phase are repeated until a satisfactory and acceptable system is found. The life cycle can also be thought of a circular process in which the end of the useful life of one system leads to the beginning of the of another project that will develop a new version or replace an existing system altogether.
SLDC is a defined set of steps that deal with every aspect of software development and ensure the correct and reliable development of a system. The various phases of SDLC are:
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