|
Level
|
Code
|
Display
|
Definition
|
| 1 |
B
|
beginning |
Condition is tested every time before execution of the service (WHILE condition DO service).
|
| 1 |
E
|
end |
Condition is tested at the end of a repeated service execution. The service is repeated only if the condition is true (DO service WHILE condition).
|
| 1 |
S
|
entry |
Condition is tested once before the service is executed (IF condition THEN service).
|
| 1 |
T
|
through |
Condition must be true throughout the execution and the service is interrupted (asynchronously) as soon as the condition turns false (asynchronous WHILE loop). The service must be interruptible.
|
| 1 |
X
|
exit |
Condition is a loop checkpoint, i.e. it is a step of an activity plan and, if negative causes the containing loop to exit.
|