Iterar

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Advanced

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Sección 1

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Sección 2

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Otros

BPMN proporciona dos mecanismos para realizar iteraciones.

1. Actividad Iterativa. Tareas y Subprocesos pueden ser repetitivos (Hacer referencia a Actividades).
2. Ciclos con Flujos de Secuencia. Se crea un ciclo conectando un Flujo de Secuencia a un objeto "aguas arriba". Se considera que un objeto está "aguas arriba" si éste tiene un Flujo de Secuencia saliente que inicia un camino que termina en un Flujo de Secuencia que entra al objeto original.

Patrones de Ciclos en pp. 464-465 y 469-473

Patrones Ciclos estructurados.

Errores en Ciclos: ciclos grandes, ciclos pequeños. Criterios para ciclos y para Actividades Iterativas.

Temporal

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Especificación BPMN

BPMN provides two mechanisms for looping within a Process.

Activity Looping.The attributes of Tasks and Sub-Processes will determine if they are repeated or performed once (see page 188).

Sequence Flow Looping.

A small looping indicator will be displayed at the bottom-center of the activity.

A set of three horizontal lines will be displayed at the bottom-center of the activity for sequential Multi-Instances (see upper figure to the right).

A set of three vertical lines will be displayed at the bottom-center of the activity for parallel Multi-Instances (see lower figure to the right).

Loops can be created by connecting a Sequence Flow to an “upstream” object. An object is considered to be upstream if that object has an outgoing Sequence Flow that leads to a series of other Sequence Flows, the last of which is an incoming Sequence Flow for the original object

Loop Characteristic are allowed for any kind of activity (task or sub-process) but not for event sub-process.

Note that Loop Characteristic Markers (Loop, Multi-Instance - Parallel, and Multi-Instance - Sequential) are mutually exclusive markers. That is, only one of them can be present on a single shape.

Loops are created when the flow of the Process moves from a downstream object to an upstream object.

See Structured Loop Patterns on pages 464-465.

Loop examples pages 469-473.

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