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2.1.2.1 Use Case Modeling
According to quotation from Whitten [4], use case modeling is the process of
modeling a system’s
functions
in terms of business events, who initiated the events and
how the system responds to the actor actions.
2.1.2.2 Use Case Diagram
After you perform use case modeling, the next step is to design the use case diagram.
Use
case
diagram
describes
the
relatio
nship
between
a
set
of
actors,
which
represent
things
outside
the
entity
that
is
being
modeled
and
a
set
of
use
cases.
A
boundary
is
usually drawn to represent what is inside the entity and what is outside. There may be a
number
of
use
case
diagrams
that
are needed to describe the use case model and each
diagram may focus on a different aspect.
The following is a list of the most frequently used elements in the use case diagram
[18].
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