Skip to content

Reading guidelines

This chapter contains separate sections per USEF phase: Plan, Validate, Operate, and Settle. In each section the use cases are specified in a standard table format:

Standard table format for USEF use cases.
Goal in context High-level description of the activity.
Preconditions The state of the system that must be present prior to a use case being performed.
Successful outcome The state the system will be in immediately after a use case has finished without failure.
Failure outcome The state the system will be in immediately after a use case has finished after failure, plus identification of the failure.