SYSTEMS ANALYSIS
Information Systems Life Cycle can be divided into three broad categories.
SYSTEMS ANALYSIS
Systems Analysis is the analysis of the problem that the organization will try
to solve with an information system. It consists of defining the problem,
identifying its causes, specifying the solution, and identifying
the information requirements that must be met by a system solution.
The key to building any
large information system is a thorough understanding of the existing
organization and system. Thus, the systems analyst creates a road map of the existing
organization and systems, identifying the primary owners and users of data in the
organization. These stakeholders have a direct interest in the information
affected by the new system. In addition to these organizational aspects, the
analyst also briefly describes the existing hardware and software that serve
the organization.
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From this organizational
analysis, the systems analyst details the problems of existing systems. By
examining documents, work papers, and procedures; observing system operations;
and interviewing key users of the systems, the analyst can identify the problem
are and objectives to be achieved by a solution. Often the solution requires buildings
a new information system or improving an existing one.
Feasibility
In addition to suggesting
a solution, systems analysis involves a feasibility study to determine whether
that solution is feasible, or achievable, given the organization’s resources
and constraints. Three major areas of feasibility must be addressed:
