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Use Case: Report Status

publish date: 1969/12/31 00:00:00 UTC

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Consider a weather station system. The 'Report status' use case sends status information about the weather station hardware to the weather information system. Based on the structured use case format (System, Use case, Actors, Data, Stimulus, Response, Comments), which of the following correctly describes the Data field for this use case?

A command string issued by the control system to restart the weather station

The status of each instrument in the weather station - including whether each instrument is functioning correctly - plus the station identifier and any fault conditions detected

The satellite link configuration parameters and communication protocols

The summarized maximum, minimum, and average weather readings for the past collection period

Correct Answer

The status of each instrument in the weather station - including whether each instrument is functioning correctly - plus the station identifier and any fault conditions detected

Explanation

The Report status use case sends status information, not weather data. The Data field should describe the status of each instrument (functioning correctly or reporting faults), the station identifier, and any detected fault conditions. This is distinct from Report weather, which sends summarized meteorological measurements. Each weather station should have its own identifier so it can be uniquely identified in communications, and instrument failures should be reported automatically.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

Design and Implementation: Exercises