Structured systems analysis and design method: Difference between revisions

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=== Stage 0 – Feasibility study ===
 
In order to determine whether or not a given project is feasible, there must be some form of investigation intoodels thethat goalshave andbeen implicationsconstructed ofand thealso project. For very small scale projects this may not be necessary at all as the scopedetails of therejected projectoptions is easily understood. In larger projects,and the feasibility may be done but in an informal sense, either because there is not timereasons for atheir formal study or because the project is a “must-have” and will have to be done one way or the otherrejection.
 
When a feasibility study is carried out, there are four main areas of consideration:
*Technical – is the project technically possible?
*Financial – can the business afford to carry out the project?
*Organizational – will the new system be compatible with existing practices?
*Ethical – is the impact of the new system socially acceptable?
 
To answer these questions, the feasibility study is effectively a condensed version of a fully blown systems analysis and design. The requirements and users are analyzed to some extent, some business options are drawn up and even some details of the technical implementation.
 
The product of this stage is a formal feasibility study document. SSADM specifies the sections that the study should contain including any preliminary models that have been constructed and also details of rejected options and the reasons for their rejection.
 
=== Stage 1 – Investigation of the current environment ===