Choose the correct answer
Which statement is true when modeling generalization?

• A. Subclasses may remove or redefine existing features, but not add features, to a superclass.
• B. Subclasses may add and remove, but not redefine, existing features of a superclass
• C. Subclasses may add and redefine, but not remove existing features of a superclass
• D. Subclasses may add, remove, and redefine existing features of a superclass
• E. Subclasses may only redefine existing features of a superclass.

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Annex C of the SysML specification describes optional stereotypes that are useful for modeling requirements.
Which stereotype are all the other stereotypes based upon, and which properties does it add to a requirement?

• A. «designConstraint», which adds a mandatory constraintProperty
• B. «extendedRequirement», which adds properties for source, risk, and verifyMethod
• C. «emanagedRequirement», which adds properties for owner and changeAuthority
• D. «penformanceRequirement». which adds properties for performanceMeasure and performance MeasureKind
• E. «synched Requirement», which adds properties for lastSynch. version, and corresponding ID in the requirements management tool

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The essentials of a laptop battery capacity model are shown In the following diagrams (where the value types W, h and Wh stand for watl, hour, and watt-hour respectively). Assume that the instance values shown are inputs, and that nothing relevant has been omitted.

The designer needs to determine what the energy_capacity of battery 1 should be to enable a laptop usage_time_capacity time of 8 hours. Which combination of the options listed in the text box in the figure will achieve this Intent with minimal changes (including minimal new aspects)?

• A. O1.1 and O2 2
• B. O1 3 and O2 3
• C. O1 1 and O2 3
• D. O1.2 and O2.3
• E. O1.1 and O2 1
• F. O1.2 and O2.1
• G. O1 7 and O2.2

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How would a modeler refine a use case textual narrative?

• A. specify all extension points for extend use cases and specify all secondary actors
• B. specify all of the triggers preconditions, and post conditions for the use case
• C. provide a detailed definition of the use case using a behavioral diagram
• D. provide a complete textual description of the main flow and alternative/exceptional flows for the use case