Software Development Life Cycle (SDLC

Systems analysis, requirements gathering: Defines project goals into defined functions and operation with the objective in mind. It is the process of gather user requirements. diagnosing problems and recommending improvements to the future system.

A series of steps followed by the analyst are

1. Gather facts: End user requirements are obtained throw documentation, client interviews, observation and questionnaires - asking what the sure is currently doing and and if there are any specific improvements they want or prefer.

2. Scrutiny of the existing system: Identify pros and cons of the current system in place, so as to carry forward the pros and avoid the cons in the new system.

3. Analyzing the proposed system: Solutions to shortcomings in step two are found and any specific user proposals are used to prepare the specifications.

• Systems design: Describes desired features and operation in detail, including screen layouts rules guidelines. processes( data flow and entity relation) diagrams pseudocode and other documentation. 
• Development : The real code is written here. 
• Integration and testing: brings all the modules( pieces together into a social testing environment then checks for errors bugs and interoperability.
• Maintenance: during the maintenance stage of the SDLC the system is assessed to ensure it does not become obsolete. This is also where updates are made to the initial software. It involved continuous evaluation of the systems in terms of its performance and completing the change requested based on the feedback.