Constraints and Trade-offs

Know the Vocabulary

This lesson uses the terms below repeatedly. Read them once now and return here when a later section needs one.

• Constraint: A limit on how a system may be built that is set outside the design team, such as a budget, a deadline, a law or an existing system that must keep working.
• Quality attribute: A measurable property of how well a system does its job, such as how fast it responds or how often it is down, as opposed to what the system does.