USE CASES
Systems Engineering Glossary
Systems Engineering — Systems Engineering — Requirements Engineering — User Requirements Document — Use Cases
Information on Use Cases
Use cases and user scenarios are very useful because
users often find it easiest to describe their view of
the system in terms of examples and illustrations of how
it might be used and how users will interact with
it. Use cases and scenarios are therefore often provided
in the form of a narrative.
Use cases provide good
framework within which to elicit requirements, as well as serving
throughout the project as upper-level descriptions of the required functionality.
Use
cases and scenarios also perform a very important function
of defining the purpose of the system, which is useful
during acceptance testing to ensure that the delivered system is
'fit-for-purpose'.
It is important that the use cases and scenarios
capture the exception conditions as well as the normal operational
conditions. Use cases are normally articulated in the User
Requirements Document.
Other topics in our resources on Systems Engineering related to Use Cases include:
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