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116 S o f t w a r e & S y s t e m s R e q u i r e m e n t s E n g i n e e r i n g : I n P r a c t i c e

Event Management
System
<<include>> <<include>>
<<include>>

View Event Create Event Update Event Results

<<realizes>> <<realizes>>
<<realizes>>

View Event Update Event
Create Event Results

FIGURE 4.24 Tracing use case realizations to use cases

Event
Creation Interface
Event Manager

Update Event
Event Interface
Management Boundary

Event Deletion
Interface

FIGURE 4.25 Boundary-to-interface tracing

Design Model Analysis Model
Element Element Comment
Use Case Business Use The use case realization represents a
Realization Case physical implementation of a process
or set of processes, as an executable
program, a subsystem, etc.
Interface Boundary Analysis Model concrete classes with
a stereotype of boundary are realized
by one or more design model classes
with a stereotype of interface.
Software Business Business Objects represented as
Classes Objects analysis model classes are realized in
the design model by “plain” software
classes.

TABLE 4.3 Analysis to Design Tracing Relationships