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Flashcards in Interaction Diagrams Deck (21)
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1

What are the two types of interaction diagrams

activity diagram
sequence diagram

2

what is the function of interaction diagrams

to model the dynamic aspects of the information system

3

function of an activity diagram

presents the workflow of the process

describes how activities are co ordinated

4

lines connecting activities in an activity diagram are called what

transitions

5

what is a branch in an activity diagram

when a transition branches into two or more mutually exclusive transitions

6

what is a fork in an activity diagram

when a transition splits into two or more parallel activities and join again after

7

what is a swimlane in an interaction diagram

determines which activity is responsible for each activity

8

how are guard expressions shown

in side square brackets []

9

what is a join in an interaction diagram

like a fork but two into one

10

interaction diagrams beginning point is shown how

filled in circle

11

how is a branch shown in interaction diagram

hollow diamond, splits from there

12

how are forks and joins shown in an interaction diagram

bold lines

13

how is the end of an interaction diagram shown

black circle surrounded by hollow circle

14

what is the function of a sequence diagram

an interaction diagram that shows how operations are carried out

15

how are sequence diagrams organised

according to time, time progresses as you go down the page

16

what does a lifeline look like in a sequence diagram

vertical dotted line

17

what does the lifeline show

the amount of time that the object is in existence

18

if a class no longer exists after the activity, how is the end of the lifeline shown

an x

19

each arrow in the sequence diagram is called the

message call

20

what does the activation bar show

represents the duration of the execution of the message

21

where to put return values in sequence diagrams

above the dotted line