Artifacts > Analysis & Design Artifact Set > Design Model... > Signal > Checkpoints

    • The signal name is unique.
    • The signal is used in at least one collaboration.
    • The signal's brief description captures the purpose of the signal and briefly summarizes the role it plays in the system.
    • The signal reflects a single well-defined purpose.
    • The signal name describes the purpose of the message rather than how to achieve the purpose.
    • The signal name does not reflect "destination dependency" which would reduce reuse potential (e.g. 'RequestInformationOfLeftTerminal').

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Rational Unified Process