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Adaptable Process Model
Reviewing the Analysis Model

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Reviewing the Analysis Model

    The analysis model serves as the foundation for all subsequent software engineering activities. For this checklist, the more questions that elicit a negative response, the higher the risk that the analysis model will not adequately serve its purpose.

    • Have requirements elicitation activities been performed? Are the results written down?
    • Have all output/input objects defined as part of requirements elicitation been refined (decomposed)?
    • Have attributes of output/input objects been identified?
    • Have data objects and their relationships (a data model) been described?

    For conventional software engineering:

    • Have all functions been decomposed?
    • Has a grammatical parse been used to begin the modeling process?
    • Has an entity relationship diagram been developed for all data objects?
    • Has a data flow model been developed?
    • Is each level of the DFD represented at a consistent level of abstraction?
    • Is information flow continuity maintained through various levels of the DFD?
    • Are all data flow items (objects) and transforms labeled and understood?
    • Have extensions for real-time systems been applied, when required?
    • Is the lowest level of the DFD represented in sufficient detail?
    • Has a control flow diagram (or its equivalent) been developed?
    • Have process specifications been developed for each low level transform?
    • Has a list of "events" that affect software behavior been developed?
    • Has a state transition diagram been developed?
    • Does the STD accurately represent system behavior?
    • Is there a way to exit every state?
    • Have usage scenarios (use cases) been applied to the STDs?
    • Have the models been represented in a way that avoids implementation details?
    • Has a CASE tool been used to support the analysis models?
    • Is a data dictionary available?

    For object-oriented software engineering:

    • Has domain analysis been conducted as a precursor or in parallel with to OOA?
    • Is the domain to be analyzed clearly identified?
    • Have domain objects been identified and defined in detail?
    • Are use cases available for OOA work?
    • Have potential classes been identified for the problem to be solved?
    • Have potential classes been evaluated using selection characteristics?
    • Have chosen classes been categorized by type?
    • Have "responsibilities" (operations, attributes) for each class been identified?
    • Is each responsibility stated as generally as possible?
    • Is system intelligence evenly distributed across classes?
    • Have collaborations (relationships) between/among classes been defined?
    • Has a CRC model (SEPA, 5/e, p. 582) been created?
    • Are CRC index cards (or their equivalent) available for review?
    • Have appropriate class hierarchies been identified?
    • Have appropriate subjects and subsystems been defined?
    • Has an object-relationship model been defined?
    • Has an object-behavior model been defined?
    • Have all elements of the OOA model been reviewed?
    • Have use cases been applied to validate the CRC model and other object models?
    • Has a prototype been developed for any function that is ambiguous or unclear?
    • Has a written Software Requirements Specification been developed?
    • Has the specification undergone formal technical review(s)?

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