Example 1 – sequential routing

Here is a diagram:

The trigger which starts a new CASE is 'Add Person'

There is 1 place:

There are 2 transitions:

T1 (Add Person Address), Type=User
T2 (Update Person Address), Type=User

There are 4 arcs:

Start -> T1, Inward, Sequential,
T1 -> P1, Outward, Sequential
P1 -> T2, Inward, Sequential
T2 -> End, Outward, Sequential

Example 2 – conditional routing with a timed split

Here is a diagram:

The trigger which starts a new CASE is 'Add Person'

There is 1 place:

There are 3 transitions:

T1 (Add Person Address), Type=User
T2 (Update Person Address), Type=User
T3 (Delete Person), Type=Timer (1 hour) – must be no user dialog

There are 6 arcs:

Start -> T1, Inward, OR-Split (Implicit)
Start -> T3, Inward, OR-Split (Implicit)
T1 -> P1, Outward, Sequential
P1 -> T2, Inward, Sequential
T2 -> End, Outward, OR-Join
T3 -> End, Outward, OR-Join

If T1 is not fired within the time limit, T3 will be fired instead. Whichever of T1 and T3 is fired first will cause the other to be cancelled.

Expired items can be identified by running script workitem(timeout).php as a cron job at timed intervals.

Example 3 – parallel routing

Here is a diagram:

The trigger which starts a new CASE is 'Add Person'

There are 4 places:

There are 4 transitions:

T1 (Add Person Address), Type=User
T2 (Update Person Address), Type=User
T3 (Maintain Options), Type=User
T2 (Update Person Address), Type=User

There are 10 arcs:

Start -> T1, Inward, Sequential
T1 -> P1, Outward, AND split
T1 -> P2, Outward, AND split
P1 -> T2, Inward, Sequential
P2 -> T3, Inward, Sequential
T2 -> P3, Outward, Sequential
T3 -> P4, Outward, Sequential
P3 -> T4, Inward, AND join
P4 -> T4, Inward, AND join
T4 -> End, Outward, Sequential

Example 4 – conditional routing with a guard

Here is a diagram:

The trigger which starts a new CASE is 'Add Person'

There are 2 places:

There are 3 transitions:

T1 (Add Person Address), Type=User
T2 (Update Person Address), Type=User
T3 (Maintain Options), Type=User

There are 7 arcs:

Start -> T1, Inward, Sequential
T1 -> P1, Outward, Explicit OR split, Guard= if (strlen($fieldarray['telephone_no']) < 1) return TRUE;
T1 -> P2, Outward, Explicit OR split
P1 -> T2, Inward, Sequential
P2 -> T3, Inward, Sequential
T2 -> END, Outward, OR join
T3 -> END, Outward, OR join

After transition T1 is executed the workflow engine will examine the 2 arcs for a pre-condition (guard). If this condition evaluates to TRUE then the arc with the condition will be processed and the other arc will be ignored. If the condition is FALSE then the arc without the condition will be processed.

Example 5 – iterative routing

Here is a diagram:

The trigger which starts a new CASE is 'Add Person'

There is 1 place:

There are 2 transitions:

T1 (Maintain Options), Type=User
T2 (Add Person Address), Type=User

There are 5 arcs:

Start -> T1, Inward, Sequential
T1 -> Start, Outward, Explicit OR split, Guard= if (strlen($fieldarray['telephone_no']) < 1) return TRUE;
T1 -> P1, Outward, Explicit OR split
P1 -> T2, Inward, Sequential
T2 -> END, Outward, Sequential