Check subprocess result on exit

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====== Check subprocess result on exit ======

{{tag>subprocess gateway}}
===== ✔ How to =====

<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_18m1du3">
    <subProcess id="Activity_1hd1dgq" name="Negotiate deal">
      <incoming>Flow_017eh8n</incoming>
      <outgoing>Flow_1gmtur1</outgoing>
    </subProcess>
    <exclusiveGateway id="Gateway_08zcsvd" name="Deal?">
      <incoming>Flow_1gmtur1</incoming>
      <outgoing>Flow_0znuxn6</outgoing>
      <outgoing>Flow_0eaj2kq</outgoing>
    </exclusiveGateway>
    <sequenceFlow id="Flow_1gmtur1" sourceRef="Activity_1hd1dgq" targetRef="Gateway_08zcsvd" />
    <task id="Activity_0p0yxli" name="Proceed">
      <incoming>Flow_0znuxn6</incoming>
      <outgoing>Flow_1pbytyb</outgoing>
    </task>
    <sequenceFlow id="Flow_0znuxn6" name="yes" sourceRef="Gateway_08zcsvd" targetRef="Activity_0p0yxli" />
    <endEvent id="Event_1tr3rn1" name="No deal">
      <incoming>Flow_0eaj2kq</incoming>
    </endEvent>
    <sequenceFlow id="Flow_0eaj2kq" name="no" sourceRef="Gateway_08zcsvd" targetRef="Event_1tr3rn1" />
    <startEvent id="Event_1mad8sj">
      <outgoing>Flow_017eh8n</outgoing>
    </startEvent>
    <sequenceFlow id="Flow_017eh8n" sourceRef="Event_1mad8sj" targetRef="Activity_1hd1dgq" />
    <endEvent id="Event_0j7s04q" name="Success">
      <incoming>Flow_1pbytyb</incoming>
    </endEvent>
    <sequenceFlow id="Flow_1pbytyb" sourceRef="Activity_0p0yxli" targetRef="Event_0j7s04q" />
  </process>
  <bpmndi:BPMNDiagram id="BpmnDiagram_1">
    <bpmndi:BPMNPlane id="BpmnPlane_1" bpmnElement="Process_18m1du3">
      <bpmndi:BPMNShape id="Activity_0s12n49_di" bpmnElement="Activity_1hd1dgq">
        <omgdc:Bounds x="190" y="90" width="100" height="80" />
        <bpmndi:BPMNLabel />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Gateway_08zcsvd_di" bpmnElement="Gateway_08zcsvd" isMarkerVisible="true">
        <omgdc:Bounds x="335" y="105" width="50" height="50" />
        <bpmndi:BPMNLabel>
          <omgdc:Bounds x="345" y="75" width="30" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0p0yxli_di" bpmnElement="Activity_0p0yxli">
        <omgdc:Bounds x="440" y="90" width="100" height="80" />
        <bpmndi:BPMNLabel />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Event_1tr3rn1_di" bpmnElement="Event_1tr3rn1">
        <omgdc:Bounds x="342" y="212" width="36" height="36" />
        <bpmndi:BPMNLabel>
          <omgdc:Bounds x="341" y="255" width="38" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Event_1mad8sj_di" bpmnElement="Event_1mad8sj">
        <omgdc:Bounds x="112" y="112" width="36" height="36" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Event_0j7s04q_di" bpmnElement="Event_0j7s04q">
        <omgdc:Bounds x="582" y="112" width="36" height="36" />
        <bpmndi:BPMNLabel>
          <omgdc:Bounds x="579" y="155" width="42" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge id="Flow_1gmtur1_di" bpmnElement="Flow_1gmtur1">
        <omgdi:waypoint x="290" y="130" />
        <omgdi:waypoint x="335" y="130" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0znuxn6_di" bpmnElement="Flow_0znuxn6">
        <omgdi:waypoint x="385" y="130" />
        <omgdi:waypoint x="440" y="130" />
        <bpmndi:BPMNLabel>
          <omgdc:Bounds x="404" y="112" width="17" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0eaj2kq_di" bpmnElement="Flow_0eaj2kq">
        <omgdi:waypoint x="360" y="155" />
        <omgdi:waypoint x="360" y="212" />
        <bpmndi:BPMNLabel>
          <omgdc:Bounds x="369" y="181" width="13" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_017eh8n_di" bpmnElement="Flow_017eh8n">
        <omgdi:waypoint x="148" y="130" />
        <omgdi:waypoint x="190" y="130" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1pbytyb_di" bpmnElement="Flow_1pbytyb">
        <omgdi:waypoint x="540" y="130" />
        <omgdi:waypoint x="582" y="130" />
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
  <bpmndi:BPMNDiagram id="BPMNDiagram_0k8h0e8">
    <bpmndi:BPMNPlane id="BPMNPlane_05v2aah" bpmnElement="Activity_1hd1dgq" />
  </bpmndi:BPMNDiagram>
</definitions>
</bpmnio>

===== ✘ How NOT to =====

<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_18m1du3">
    <subProcess id="Activity_1hd1dgq" name="Negotiate deal">
      <incoming>Flow_014fv7m</incoming>
      <outgoing>Flow_15xjhk7</outgoing>
    </subProcess>
    <sequenceFlow id="Flow_15xjhk7" sourceRef="Activity_1hd1dgq" targetRef="Activity_0xmeje2" />
    <subProcess id="Activity_0xmeje2" name="Prepare and sign contract">
      <incoming>Flow_15xjhk7</incoming>
      <outgoing>Flow_1pveezk</outgoing>
    </subProcess>
    <endEvent id="Event_096q8k8" name="Success">
      <incoming>Flow_1pveezk</incoming>
    </endEvent>
    <sequenceFlow id="Flow_1pveezk" sourceRef="Activity_0xmeje2" targetRef="Event_096q8k8" />
    <startEvent id="Event_0u89g2q">
      <outgoing>Flow_014fv7m</outgoing>
    </startEvent>
    <sequenceFlow id="Flow_014fv7m" sourceRef="Event_0u89g2q" targetRef="Activity_1hd1dgq" />
  </process>
  <bpmndi:BPMNDiagram id="BpmnDiagram_1">
    <bpmndi:BPMNPlane id="BpmnPlane_1" bpmnElement="Process_18m1du3">
      <bpmndi:BPMNShape id="Event_096q8k8_di" bpmnElement="Event_096q8k8">
        <omgdc:Bounds x="482" y="112" width="36" height="36" />
        <bpmndi:BPMNLabel>
          <omgdc:Bounds x="479" y="155" width="42" height="14" />
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Event_0u89g2q_di" bpmnElement="Event_0u89g2q">
        <omgdc:Bounds x="112" y="112" width="36" height="36" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0s12n49_di" bpmnElement="Activity_1hd1dgq">
        <omgdc:Bounds x="190" y="90" width="100" height="80" />
        <bpmndi:BPMNLabel />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1k3mm3u_di" bpmnElement="Activity_0xmeje2">
        <omgdc:Bounds x="340" y="90" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge id="Flow_15xjhk7_di" bpmnElement="Flow_15xjhk7">
        <omgdi:waypoint x="290" y="130" />
        <omgdi:waypoint x="340" y="130" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1pveezk_di" bpmnElement="Flow_1pveezk">
        <omgdi:waypoint x="440" y="130" />
        <omgdi:waypoint x="482" y="130" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_014fv7m_di" bpmnElement="Flow_014fv7m">
        <omgdi:waypoint x="148" y="130" />
        <omgdi:waypoint x="190" y="130" />
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
  <bpmndi:BPMNDiagram id="BPMNDiagram_0k8h0e8">
    <bpmndi:BPMNPlane id="BPMNPlane_05v2aah" bpmnElement="Activity_1hd1dgq" />
  </bpmndi:BPMNDiagram>
  <bpmndi:BPMNDiagram id="BPMNDiagram_1gsascs">
    <bpmndi:BPMNPlane id="BPMNPlane_0qs6irk" bpmnElement="Activity_0xmeje2" />
  </bpmndi:BPMNDiagram>
</definitions>
</bpmnio>

===== Notes =====

  * If a subprocess isn't followed by a gateway then it is assumed that the subprocess is always successful which usually isn't the case. A subprocess not followed by a gateway may be not a mistake but should raise question whether we anticipate the possibility of unsuccessful subprocess completion.
  * This rule is applicable to embedded subprocesses and call activities calling a process, collapsed and expanded subprocesses.
===== Exceptions =====

  * Deal negotiation in the "How not to" diagram above may be always successful if it's concluded between affilated parties, e.g. a business unit company and a shared services company belonging to a single group. No need for a gateway in this case.
===== See also =====

  * [[en:rule:business_exception_error]]
  * [[en:rule:human_decision]]

===== Author(s) =====

 --- //[[user:bell|Anatoly Belaychuk]] 2023-08-06 14:41//