Structured systems analysis and design method: Difference between revisions

Revision as of 16:24, 6 July 2012

Revision as of 16:29, 6 July 2012

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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 into the goals and implications of the project. For very small scale projects this may not be necessary at all as the scope of the project is easily understood. In larger projects, the feasibility may be done but in an informal sense, either because there is not time for a formal study or because the project is a “must-have” and will have to be done one way or the other.<br />

In order to determine whether or not a given project is feasible, there must be some form of

• When a feasibility study is carried out, there are four main areas of consideration:<br /><br />

investigation into the goals and implications of the project.<br />

◦Technical For– ais small scalethe project, it may not betechnically necessary.possible?<br />

2. Financial – Cancan the business afford to carry out the project?<br />

◦ For a large scale project, it may be done but in an informal sense.<br /><br />

3. Organizational – Willwill the new system be compatible with existing systemspractices?<br />

• When a feasibility study is carried out, there are four main areas of consideration:<br /><br />

1. TechnicalEthical – Isis the projectimpact technicallyof possiblethe new system socially acceptable?<br /><br />

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.

2. Financial – Can the business afford to carry out the project?<br />

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.<br />

3. Organizational – Will the new system be compatible with existing systems?<br />

4. Ethical – Is the impact of the new system socially acceptable?<br /><br />

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 ===