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Requirements Management
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| Major projects and programmes often address multiple and sometimes conflicting requirements from different sources, and have to maintain effective management of these requirements over long periods and through several iterations of change. In these circumstances Advantage believes it is essential to adopt a formal approach to requirements capture and management.
At the capture stage, Advantage uses a range of techniques including Structured Questioning, Process Mapping, Use Case Scenarios and Gap Analysis to engage the stakeholder community, connect with their way of thinking, and both tease out and rationalize their aspirations for a proposed system. Advantage is experienced in selecting techniques best suited to the circumstance and making appropriate use of them to elicit the requirements and articulate them clearly.
Advantage then works with the project team to analyse both user operations and system functions and refine the requirement accordingly. The requirements are also linked through development to appropriate project artefacts such as supplier facing specifications, deliverables and test/acceptance criteria. These activities all provide assurance that required capabilities are achieved in the operational system while maintaining compliance with constraints such as those imposed by safety and environmental needs, standards and legislation. One of the main tools we use to do this is the DOORS™ system produced by Telelogic. By linking requirement statements with the various deliverables in a project, DOORS can provide traceability of views, which show how the high-level objectives have been met and support impact analysis when considering change.
Advantage has been a user of DOORS for 5 years and holds a current DOORS licence. Our initial work with DOORS involved the simplification and structuring of Software Requirements for the primary protection system of the Czech Temelin nuclear power plant. This early work with DOORS was instrumental in Advantage taking the lead in the application of DOORS on BAA’s Heathrow Terminal 5 programme. | | |
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