A Use Case

question 3

Multiple Choice

A use case:

• A) summarizes an activity, its trigger, input, and output.
• B) describes a subsystem of a data flow diagram showing how the processes use data produced by other processes.
• C) describes how the data is partitioned into programs for different users.
• D) shows when the data is updated, read, created or deleted.

---

Definitions:

Axle

A rod or bar on which wheels turn or the housing that supports wheel assemblies. Also used to describe the shaft that transmits drive torque to the drive wheels.

Drivelines

Components, including the driveshaft, axles, CV joints, and differential, that transmit power from the engine to the wheels of a vehicle.

Torque Transfer

The process of transferring rotational force from one part of a mechanical system to another, allowing for movement and work to be done.

U-joints

Universal joints, flexible couplings that allow different parts of a drivetrain to pivot or rotate, accommodating changes in angle or alignment.