Analysis SDLC
Analysis of the Enterprise Level Business System A business system should perform all the necessary functions that a business needs. To make sure that the business receives the proper system an analyst gathers all the needed information on what is currently in place and what is needed. This phase of the enterprise level business system development life cycle is the analysis phase. Functional user requirements are formally defined and delineated in the analysis phase. All requirements are defined to a level of detail sufficient for systems design to proceed. All requirements need to be measurable and testable and relate to the business need or opportunity identified in the Initiation Phase (Department of Justice Web Site). If information is not gathered on what the customer has and wants the system may not deliver all that is needed. There are different ways for an analyst to gather the information needed in installing a new business system. Interviews, observations, and review of documentation are just some. This information is then put into forms that can be easily seen which are either diagrammatic or textual. These tools in turn help the analyst see what is right and wrong with the analysis of the company's business processes
Role diagrams show the roles in business processes. Reviewing of system documentation can show how the current business process is performed and what is currently being used. A diagrammatic of the business process gives a visual display of how the business processes are performed. Building a prototype can help to uncover more user needs when used (Safari On-Line resources). Theses two methods are used by analysts to show users how the system will perform and be used. The prototype is shown to the users and define whether this is what they were looking for. The analyst can use the business process mapping tools to show the company users as seen by the analyst's gathered information (NetG Training Module). The downside to this technique is that the information being reviewed may be inaccurate due to the lack of updates of the information; therefore information should be checked for its accuracy. These information gathering are helpful tools in analyzing system requirements if the downsides are known and worked around. Managing Software Requirements: A unified approach. Can During the analysis phase business process mapping methods and tools may be used.
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