Review

When you’re closely involved with the preparation and issue of a document it can be hard to really see what is written. This is a human trait and it also happens in other areas such as modelling when we describe what we think it ought to be rather than what we’ve actually committed by definition either on paper or in electronic forms or using languages such as SysML, UML or indeed anything.

This is why independent review is essential to the rigour of the design process, not just in the realms of safety, (and why marriage counsellors et al exist!).

Eclectica Systems can support

  • review and analysis of individual documents
  • review, participation (i.e. design review panel member) in classic systems engineering design reviews
    • System Requirements Review (SRR) - focus on the requirements, flow-down/relationships, structure and management
    • System Definition Review (SDR) - focus on the programme, allocation, technical approach & adequacy
    • Preliminary Design Review (PDR) - focus on adequacy of design against requirements and operational concept (e.g. CONOPS, CONUSE, CONEMP), risk, safety,
    • Critical Design Review (CDR) - focus on adequacy of detailed design
    • Test Readiness Review - suitability/fitness for purpose to undergo test

External References

Categories: • Services • Systems Engineering • Requirements

Requirement Identification, Authoring and Management

We meet requirements packaged in many different ways

  • contracts - commercial and legal requirements
  • standards - including technical and national
  • processes - company processes, method statements
  • plans - company plans often contain or invoke other requirements even if at a high level, for example management plans
  • user requirements -usually high level requirements based around scenarios of use
  • technical specifications - these contain detailed technical requirements
  • interface requirements - again usually technical. Sometimes incorporated with the functional requirements but often also identified separately (not always a good idea in practice, however well-intentioned)

Eclectica Systems can offer support in

  • identification of requirements
  • identification of the boundary of the ‘system’ to which the requirements apply and the dependencies with the ‘residual world’, for example using architectural modelling
  • authoring of requirements - applying sounds principles of ...?
    • User Requirement Documents (URDs)
    • System Requirement Documents (SRDs)
    • Interface Requirements
    • Systems Engineering Plans - SEMP, verification and validation plans
  • management of requirements
  • use of appropriate tools or techniques depending on the size of the system and part of the life-cycle. This can include robust and heavyweight tools such as DOORS
  • facilitation of meetings with users to capture requirements
  • design and peer review of requirement documents whether ‘straight’ requirements or other types of requirement enforcement e.g. Systems Engineering Management Plan (SEMP), verification plans

Categories: • Services • Requirements

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