Не используйте сходящуюся развилку "и-или" без парной расходящейся развилки

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====== Не используйте сходящуюся развилку "и-или" без парной расходящейся развилки ======

{{tag>развилка развилка_и-или}}

Использование сходящейся развилки «и-или» без парной расходящейся является избыточным и не рекомендовано.

===== ✔ Как надо =====

<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_1wcoogl">
    <exclusiveGateway id="Gateway_1oldu18">
      <outgoing>Flow_0s2x71d</outgoing>
      <outgoing>Flow_0r8sh7a</outgoing>
    </exclusiveGateway>
    <task id="Activity_1msbof5">
      <incoming>Flow_0s2x71d</incoming>
      <outgoing>Flow_0w3f70i</outgoing>
    </task>
    <sequenceFlow id="Flow_0s2x71d" sourceRef="Gateway_1oldu18" targetRef="Activity_1msbof5" />
    <task id="Activity_1yuh0l8">
      <incoming>Flow_0r8sh7a</incoming>
      <outgoing>Flow_1yzbpp9</outgoing>
    </task>
    <sequenceFlow id="Flow_0r8sh7a" sourceRef="Gateway_1oldu18" targetRef="Activity_1yuh0l8" />
    <exclusiveGateway id="Gateway_1oih979">
      <incoming>Flow_1yzbpp9</incoming>
      <incoming>Flow_0w3f70i</incoming>
    </exclusiveGateway>
    <sequenceFlow id="Flow_1yzbpp9" sourceRef="Activity_1yuh0l8" targetRef="Gateway_1oih979" />
    <sequenceFlow id="Flow_0w3f70i" sourceRef="Activity_1msbof5" targetRef="Gateway_1oih979" />
  </process>
  <bpmndi:BPMNDiagram id="BpmnDiagram_1">
    <bpmndi:BPMNPlane id="BpmnPlane_1" bpmnElement="Process_1wcoogl">
      <bpmndi:BPMNShape id="Gateway_1oldu18_di" bpmnElement="Gateway_1oldu18" isMarkerVisible="true">
        <omgdc:Bounds x="285" y="135" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1msbof5_di" bpmnElement="Activity_1msbof5">
        <omgdc:Bounds x="360" y="50" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1yuh0l8_di" bpmnElement="Activity_1yuh0l8">
        <omgdc:Bounds x="360" y="190" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Gateway_1oih979_di" bpmnElement="Gateway_1oih979" isMarkerVisible="true">
        <omgdc:Bounds x="485" y="135" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge id="Flow_0s2x71d_di" bpmnElement="Flow_0s2x71d">
        <omgdi:waypoint x="310" y="135" />
        <omgdi:waypoint x="310" y="90" />
        <omgdi:waypoint x="360" y="90" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0r8sh7a_di" bpmnElement="Flow_0r8sh7a">
        <omgdi:waypoint x="310" y="185" />
        <omgdi:waypoint x="310" y="230" />
        <omgdi:waypoint x="360" y="230" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1yzbpp9_di" bpmnElement="Flow_1yzbpp9">
        <omgdi:waypoint x="460" y="230" />
        <omgdi:waypoint x="510" y="230" />
        <omgdi:waypoint x="510" y="185" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0w3f70i_di" bpmnElement="Flow_0w3f70i">
        <omgdi:waypoint x="460" y="90" />
        <omgdi:waypoint x="510" y="90" />
        <omgdi:waypoint x="510" y="135" />
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>
</bpmnio>

===== ✘ Как НЕ надо =====

<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_1wcoogl">
    <exclusiveGateway id="Gateway_1oldu18">
      <outgoing>Flow_0s2x71d</outgoing>
      <outgoing>Flow_0r8sh7a</outgoing>
    </exclusiveGateway>
    <task id="Activity_1msbof5">
      <incoming>Flow_0s2x71d</incoming>
      <outgoing>Flow_0w3f70i</outgoing>
    </task>
    <sequenceFlow id="Flow_0s2x71d" sourceRef="Gateway_1oldu18" targetRef="Activity_1msbof5" />
    <task id="Activity_1yuh0l8">
      <incoming>Flow_0r8sh7a</incoming>
      <outgoing>Flow_1yzbpp9</outgoing>
    </task>
    <sequenceFlow id="Flow_0r8sh7a" sourceRef="Gateway_1oldu18" targetRef="Activity_1yuh0l8" />
    <sequenceFlow id="Flow_1yzbpp9" sourceRef="Activity_1yuh0l8" targetRef="Gateway_1oih979" />
    <sequenceFlow id="Flow_0w3f70i" sourceRef="Activity_1msbof5" targetRef="Gateway_1oih979" />
    <inclusiveGateway id="Gateway_1oih979">
      <incoming>Flow_1yzbpp9</incoming>
      <incoming>Flow_0w3f70i</incoming>
    </inclusiveGateway>
  </process>
  <bpmndi:BPMNDiagram id="BpmnDiagram_1">
    <bpmndi:BPMNPlane id="BpmnPlane_1" bpmnElement="Process_1wcoogl">
      <bpmndi:BPMNShape id="Gateway_1oldu18_di" bpmnElement="Gateway_1oldu18" isMarkerVisible="true">
        <omgdc:Bounds x="285" y="135" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1msbof5_di" bpmnElement="Activity_1msbof5">
        <omgdc:Bounds x="360" y="50" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_1yuh0l8_di" bpmnElement="Activity_1yuh0l8">
        <omgdc:Bounds x="360" y="190" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Gateway_1bl2jrt_di" bpmnElement="Gateway_1oih979">
        <omgdc:Bounds x="485" y="135" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge id="Flow_0s2x71d_di" bpmnElement="Flow_0s2x71d">
        <omgdi:waypoint x="310" y="135" />
        <omgdi:waypoint x="310" y="90" />
        <omgdi:waypoint x="360" y="90" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0r8sh7a_di" bpmnElement="Flow_0r8sh7a">
        <omgdi:waypoint x="310" y="185" />
        <omgdi:waypoint x="310" y="230" />
        <omgdi:waypoint x="360" y="230" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1yzbpp9_di" bpmnElement="Flow_1yzbpp9">
        <omgdi:waypoint x="460" y="230" />
        <omgdi:waypoint x="510" y="230" />
        <omgdi:waypoint x="510" y="185" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0w3f70i_di" bpmnElement="Flow_0w3f70i">
        <omgdi:waypoint x="460" y="90" />
        <omgdi:waypoint x="510" y="90" />
        <omgdi:waypoint x="510" y="135" />
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>
</bpmnio>

===== Примечания =====

Согласно [[https://www.omg.org/spec/BPMN/2.0.2/PDF | спецификации BPMN ]] (стр. 291),

> Сходящаяся развилка "и-или" используется для слияния сочетания альтернативных и параллельных потоков. Токен, приходящий на развилку "и-или", МОЖЕТ синхронизовываться с некоторыми другими токенами, приходящими на эту же развилку позднее.

Таким образом, если сходящаяся развилка "и-или" не имеет парной расходящейся, то ее поведение в точности не определено, поэтому такого использования рекомендуется избегать.
===== Исключения =====

Развилка "и-или" - единственный способ синхронизовать условные потоки управления:

<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_1fohfju">
    <task id="Activity_0dz3i2m" default="Flow_0yhgogy">
      <outgoing>Flow_0yhgogy</outgoing>
      <outgoing>Flow_17w8cch</outgoing>
      <outgoing>Flow_1erz2cg</outgoing>
    </task>
    <sequenceFlow id="Flow_0yhgogy" sourceRef="Activity_0dz3i2m" targetRef="Activity_0px2wls" />
    <inclusiveGateway id="Gateway_14rc2cm">
      <incoming>Flow_0xdfiky</incoming>
      <incoming>Flow_1bwpf18</incoming>
      <incoming>Flow_00a1mlo</incoming>
    </inclusiveGateway>
    <task id="Activity_0px2wls">
      <incoming>Flow_0yhgogy</incoming>
      <outgoing>Flow_0xdfiky</outgoing>
    </task>
    <sequenceFlow id="Flow_0xdfiky" sourceRef="Activity_0px2wls" targetRef="Gateway_14rc2cm" />
    <task id="Activity_0poa1n1">
      <incoming>Flow_17w8cch</incoming>
      <outgoing>Flow_00a1mlo</outgoing>
    </task>
    <sequenceFlow id="Flow_17w8cch" sourceRef="Activity_0dz3i2m" targetRef="Activity_0poa1n1">
      <conditionExpression xsi:type="tFormalExpression" />
    </sequenceFlow>
    <task id="Activity_08papqw">
      <incoming>Flow_1erz2cg</incoming>
      <outgoing>Flow_1bwpf18</outgoing>
    </task>
    <sequenceFlow id="Flow_1erz2cg" sourceRef="Activity_0dz3i2m" targetRef="Activity_08papqw">
      <conditionExpression xsi:type="tFormalExpression" />
    </sequenceFlow>
    <sequenceFlow id="Flow_1bwpf18" sourceRef="Activity_08papqw" targetRef="Gateway_14rc2cm" />
    <sequenceFlow id="Flow_00a1mlo" sourceRef="Activity_0poa1n1" targetRef="Gateway_14rc2cm" />
  </process>
  <bpmndi:BPMNDiagram id="BpmnDiagram_1">
    <bpmndi:BPMNPlane id="BpmnPlane_1" bpmnElement="Process_1fohfju">
      <bpmndi:BPMNShape id="Activity_0dz3i2m_di" bpmnElement="Activity_0dz3i2m">
        <omgdc:Bounds x="350" y="200" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Gateway_1biwend_di" bpmnElement="Gateway_14rc2cm">
        <omgdc:Bounds x="655" y="215" width="50" height="50" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0px2wls_di" bpmnElement="Activity_0px2wls">
        <omgdc:Bounds x="510" y="200" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_0poa1n1_di" bpmnElement="Activity_0poa1n1">
        <omgdc:Bounds x="510" y="70" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape id="Activity_08papqw_di" bpmnElement="Activity_08papqw">
        <omgdc:Bounds x="510" y="320" width="100" height="80" />
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge id="Flow_0yhgogy_di" bpmnElement="Flow_0yhgogy">
        <omgdi:waypoint x="450" y="240" />
        <omgdi:waypoint x="510" y="240" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_0xdfiky_di" bpmnElement="Flow_0xdfiky">
        <omgdi:waypoint x="610" y="240" />
        <omgdi:waypoint x="655" y="240" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_17w8cch_di" bpmnElement="Flow_17w8cch">
        <omgdi:waypoint x="400" y="200" />
        <omgdi:waypoint x="400" y="110" />
        <omgdi:waypoint x="510" y="110" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1erz2cg_di" bpmnElement="Flow_1erz2cg">
        <omgdi:waypoint x="400" y="280" />
        <omgdi:waypoint x="400" y="360" />
        <omgdi:waypoint x="510" y="360" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_1bwpf18_di" bpmnElement="Flow_1bwpf18">
        <omgdi:waypoint x="610" y="360" />
        <omgdi:waypoint x="680" y="360" />
        <omgdi:waypoint x="680" y="265" />
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge id="Flow_00a1mlo_di" bpmnElement="Flow_00a1mlo">
        <omgdi:waypoint x="610" y="110" />
        <omgdi:waypoint x="680" y="110" />
        <omgdi:waypoint x="680" y="215" />
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>
</bpmnio>

===== Смотри также =====

  * [[ru:rule:do_not_use_conditional_flows]]

===== Автор(ы) =====

 --- //[[user:wjulia|Юлия Вагнер]] 2024-01-22 17:13//