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06_ Interaction diagrams (Sequence diagrams (FRAME (combined fragment…
06_ Interaction diagrams
Sequence diagrams
interactions by means of a temporal sequence of actions
Exchanged messages
synchron
no associations
objects
objects placed horizontally
time is the vertical flow
life line
time scale is not import
temporal sequence is important but not the absolute distance
describe real time sys
FRAME
Label: name of diagram
not mandatory
boundary of the sequence diagram
combined fragment
part of a sequence diagram defined by an operator of the interaction
alt
break
opt
loop
neg
Guard
when a fragment can be executed
Collaboration diagrams
general information
not precise time dimension
emphasis on collaboration between objects
Representing
objects as icons
messages as arrows
sequence by the message enumeration
temporal sequences are given by the enumeration of them exchanged messages
What are? What they describe?
model collaboration between objects
represent dynamic behavior, dynamic sequence of action
objects and messages exchanged