Differences

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--- en:rule:control_branch [2024-01-08 19:35] – [Edit diagram] Anatoly Belaychuk
+++ en:rule:control_branch [2024-11-02 13:36] (current) – [Edit diagram] Anatoly Belaychuk
@@ Line 1: / Line 1: @@
-====== Use a subprocess and a control branch as an alternative to the attached event ======
+====== A subprocess and a control branch may be used as an alternative to the attached event ======
-{{tag>subprocess gateway event "attached event"}}
+{{tag>subprocess event attached_event terminate_event}}
 Use a subprocess containing the control branch to implement versatile event processing logic.
 ===== ✔ How to =====
@@ Line 12: / Line 11: @@
   - Start the subprocess with the parallel gateway followed by two branches, "working" and "control".
   - Put the "Obtain payment" at the working branch.
-  - Put the timer to the control branch.
+  - Put the timer at the control branch.
-  - End both the working and control branch with terminate events.
+  - End both the working and control branch with the terminate event.
 <bpmnio type="bpmn">
@@ Line 166: / Line 165: @@
 ===== ✘ How NOT to =====
-Attached timer, while a better alternative in simple scenarios, won't do the job if need to discuss the issue with client while still trying to obtain the payment:
+Interrupting attached timer won't let discussing the issue with client while still trying to obtain the payment:
 <bpmnio type="bpmn">
@@ Line 180: / Line 179: @@
     </startEvent>
     <sequenceFlow id="Flow_1mqvexf" sourceRef="Event_0jid81n" targetRef="Activity_1mnvjuz" />
-    <sequenceFlow id="Flow_1fkn8r9" sourceRef="Event_0r0tew3" targetRef="Activity_1skmlnn" />
     <endEvent id="Event_1k1tn88" name="Paid">
       <incoming>Flow_0b5yo8b</incoming>
     </endEvent>
+    <sequenceFlow id="Flow_0b5yo8b" sourceRef="Activity_1mnvjuz" targetRef="Event_1k1tn88" />
+    <boundaryEvent id="Event_0r0tew3" name="Payment due date" attachedToRef="Activity_1mnvjuz">
+      <outgoing>Flow_0xmx632</outgoing>
+      <timerEventDefinition id="TimerEventDefinition_0f85qyr" />
+    </boundaryEvent>
+    <sequenceFlow id="Flow_0xmx632" sourceRef="Event_0r0tew3" targetRef="Event_04k06ga" />
+    <endEvent id="Event_04k06ga" name="Not paid">
+      <incoming>Flow_0xmx632</incoming>
+    </endEvent>
+  </process>
+  <bpmndi:BPMNDiagram id="BpmnDiagram_1">
+    <bpmndi:BPMNPlane id="BpmnPlane_1" bpmnElement="Process_0kf0077">
+      <bpmndi:BPMNShape id="Activity_1mnvjuz_di" bpmnElement="Activity_1mnvjuz">
+        <omgdc:Bounds x="200" y="-160" width="100" height="80" />
+        <bpmndi:BPMNLabel />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_0jid81n_di" bpmnElement="Event_0jid81n">
+        <omgdc:Bounds x="112" y="-138" width="36" height="36" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_0ok4f4i_di" bpmnElement="Event_1k1tn88">
+        <omgdc:Bounds x="352" y="-138" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <omgdc:Bounds x="359" y="-95" width="23" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_0u9z69r_di" bpmnElement="Event_04k06ga">
+        <omgdc:Bounds x="232" y="-8" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <omgdc:Bounds x="230" y="35" width="41" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_0sh9f2p_di" bpmnElement="Event_0r0tew3">
+        <omgdc:Bounds x="232" y="-98" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <omgdc:Bounds x="205" y="-55" width="90" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNEdge id="Flow_1mqvexf_di" bpmnElement="Flow_1mqvexf">
+        <omgdi:waypoint x="148" y="-120" />
+        <omgdi:waypoint x="200" y="-120" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0b5yo8b_di" bpmnElement="Flow_0b5yo8b">
+        <omgdi:waypoint x="300" y="-120" />
+        <omgdi:waypoint x="352" y="-120" />
+      </bpmndi:BPMNEdge>
+      <bpmndi:BPMNEdge id="Flow_0xmx632_di" bpmnElement="Flow_0xmx632">
+        <omgdi:waypoint x="250" y="-62" />
+        <omgdi:waypoint x="250" y="-8" />
+      </bpmndi:BPMNEdge>
+    </bpmndi:BPMNPlane>
+  </bpmndi:BPMNDiagram>
+</definitions>
+</bpmnio>
+Non-interrupting looks better but it won't let resetting the timer to the new due date:
+<bpmnio type="bpmn">
+<?xml version="1.0" encoding="UTF-8"?>
+<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" id="sid-38422fae-e03e-43a3-bef4-bd33b32041b2" targetNamespace="http://bpmn.io/bpmn" exporter="http://bpmn.io" exporterVersion="0.10.1">
+  <process id="Process_0kf0077">
+    <task id="Activity_1mnvjuz" name="Obtain payment">
+      <incoming>Flow_1mqvexf</incoming>
+      <outgoing>Flow_0b5yo8b</outgoing>
+    </task>
+    <startEvent id="Event_0jid81n">
+      <outgoing>Flow_1mqvexf</outgoing>
+    </startEvent>
+    <sequenceFlow id="Flow_1mqvexf" sourceRef="Event_0jid81n" targetRef="Activity_1mnvjuz" />
+    <sequenceFlow id="Flow_1fkn8r9" sourceRef="Event_0r0tew3" targetRef="Activity_1skmlnn" />
     <sequenceFlow id="Flow_0b5yo8b" sourceRef="Activity_1mnvjuz" targetRef="Event_1k1tn88" />
     <boundaryEvent id="Event_0r0tew3" name="Payment due date" cancelActivity="false" attachedToRef="Activity_1mnvjuz">
@@ Line 208: / Line 275: @@
     </endEvent>
     <sequenceFlow id="Flow_16a0qq5" name="yes" sourceRef="Gateway_1sygjo0" targetRef="Event_1ltc3ao" />
+    <endEvent id="Event_1k1tn88" name="Paid">
+      <incoming>Flow_0b5yo8b</incoming>
+      <terminateEventDefinition id="TerminateEventDefinition_1srmvcb" />
+    </endEvent>
   </process>
   <bpmndi:BPMNDiagram id="BpmnDiagram_1">
@@ Line 217: / Line 288: @@
       <bpmndi:BPMNShape id="Event_0jid81n_di" bpmnElement="Event_0jid81n">
         <omgdc:Bounds x="112" y="-138" width="36" height="36" />
-      </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Event_0ok4f4i_di" bpmnElement="Event_1k1tn88">
-        <omgdc:Bounds x="352" y="-138" width="36" height="36" />
-        <bpmndi:BPMNLabel>
-          <omgdc:Bounds x="359" y="-95" width="23" height="14" />
-        </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Activity_1skmlnn_di" bpmnElement="Activity_1skmlnn">
@@ Line 244: / Line 309: @@
         <bpmndi:BPMNLabel>
           <omgdc:Bounds x="349" y="155" width="43" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Event_05jo8b9_di" bpmnElement="Event_1k1tn88">
+        <omgdc:Bounds x="352" y="-138" width="36" height="36" />
+        <bpmndi:BPMNLabel>
+          <omgdc:Bounds x="359" y="-95" width="23" height="14" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
@@ Line 286: / Line 357: @@
 </definitions>
 </bpmnio>
 ===== Notes =====
-  - [[en:rule:event_gateway_warning | Exclusive event-based gateway ]] won't do the job.
+  - Although it's usually better to use [[en:rule:collapsed_subprocess|collapsed representation of a subprocess]] to isolate its internals, it may make sence to depict the subprocess expanded in this technique to make the logic clear.
-  - Although it's usually better to use [[en:rule:collapsed_subprocess | collapsed representation of a process ]] to isolate its internals, it may make sence to depict the subprocess expanded in this technique to make the logic clear.
+  - As an exception to the [[en:rule:explicit_parallel_split|general rule]], one may initiate work and control flows directly from the start event:
-  - As an exception to the [[en:rule:one_outgoing_control_flow | general rule ]], one may initiate work and control flows directly from the start event:
 <bpmnio type="bpmn">
@@ Line 430: / Line 499: @@
 </definitions>
 </bpmnio>
-===== Exceptions =====
+===== See also =====
-Attached events are simpler and hence should be preferred in more straightforward scenarios.
+  * [[en:rule:event_gateway_warning]]
 ===== Autor(s) =====
  --- //[[user:bell|Anatoly Belaychuk]] 2023-09-10 11:21//