Slides Part 2 (OOA, pages 1-128, pdf, 4 slides per page)
Slides Part 2 (OOA, pages 1-128, pdf, 4 slides per page)
Slides Part 2 (OOA, pages 1-128, pdf, 4 slides per page)
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SIMPLE SCENARIOS: NORMAL CASE 2 AND EXCEPTIONAL CASE 3<br />
Scenario for normal case 2:<br />
sd OpenAcccountN2<br />
sd OpenAcccountE3<br />
: Bank<br />
BankClerk BankClerk<br />
account_opened<br />
Szenario for exceptional case 3:<br />
open_known_customer_accout open_known_customer_accout<br />
ignore to define messages to be ignored in the execu<br />
loop repetition<br />
neg to define forbidden behavior<br />
53<br />
account_not_opened<br />
par parallel independent execution of several o<strong>per</strong>ands tion<br />
seq weak sequencing (default)<br />
strict strict sequencing<br />
We will only use alt and opt.<br />
Moreover: ref: Reference to another sequence diagram.<br />
Avoids repetitions; semantics: replace reference by its contents.<br />
55<br />
: Bank<br />
COMBINED FRAGMENTS<br />
O<strong>per</strong>ators for combining different sequence diagrams. The following o<strong>per</strong>ators<br />
are defined:<br />
alt alternatives; more than two alternatives are possible.<br />
opt option<br />
assert assertion, to define a message sequence that must occur<br />
break description of behavior expected after a break<br />
coregion messages can be received in any order<br />
consider to define messages to be considered in the execution; equivalent to<br />
defining every other message to be ignored<br />
critical critical region<br />
PATTERN FOR MODELING “”<br />
sd UC1_i<br />
54<br />
<br />
UC1 UC2<br />
:X :Y<br />
ref<br />
M1<br />
M2<br />
M3<br />
M4<br />
UC2<br />
56
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