On a Use-Case Diagram, an "Extends Relationship" Extends a Use

question 271

True/False

On a use-case diagram, an "extends relationship" extends a use case by capturing additional actions or behaviors that need to be performed.

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Definitions:

Twin Countershaft Transmission

A type of manual transmission found in heavy vehicles, using two parallel shafts to allow for a wider range of gears.

Constant Mesh

Gears positioned to remain in permanent mesh, not engaged and disengaged by shifting action.

Sliding Clutch

Actuated by a shift yoke, used to engage a gear on a shaft. Also known as a dog clutch.

NPV

Net Present Value; a method used in capital budgeting to assess the profitability of a project or investment by calculating the difference between the present value of cash inflows and outflows.