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What is the difference between use case and test case? give
example.
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Answer Posted / ravikanth
Use Case: A use case in software engineering and systems
engineering is a description of a system’s behavior as it
responds to a request that originates from outside of that
system. In other words, a use case describes "who" can
do "what" with the system in question. The use case
technique is used to capture a system's behavioral
requirements by detailing scenario-driven threads through
the functional requirements
Use cases describe the interaction between one or more
actors (an actor that is the initiator of the interaction
may be referred to as the 'primary actor') and the system
itself, represented as a sequence of simple steps. Actors
are something or someone which exists outside the system
('black box') under study, and that take part in a sequence
of activities in a dialogue with the system to achieve some
goal. Actors may be end users, other systems, or hardware
devices. Each use case is a complete series of events,
described from the point of view of the actor
Test case :A test case in software engineering is a set of
conditions or variables under which a tester will determine
whether an application or software system is working
correctly or not. The mechanism for determining whether a
software program or system has passed or failed such a test
is known as a test oracle. In some settings, an oracle
could be a requirement or use case, while in others it
could be a heuristic. It may take many test cases to
determine that a software program or system is functioning
correctly. Test cases are often referred to as test
scripts, particularly when written. Written test cases are
usually collected into test suites
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