EditingDecideModules < OpsRes

---+ Editing Decide Modules

_Decide_ modules can be added to the flowchart view via dragging and dropping (see [[EditingCreateModules][Editing Create Modules]] for a demonstration) and edited by double clicking on the module. There are 4 types of _Decide_ modules.

---++ 2-way by Chance

This type of _decide_ module will route entities one of two ways according to a given percentage. The percentage is specifed by the user and relates to the proprotion of entities that are routed to the _True_ exit point.

---++ 2-way by Condition

This type of _decide_ module will route entities one of two ways depending on the condition. There are multiple types of conditions.

---+++ Variable

Arena evaluates a variable-based expression and routes to the _True_ exit point if the expression is true or the _False_ exit point otherwise.
<h3>

Attribute
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Arena evaluates an attribute-based expression and routes to the _True_ exit point if the expression is true or the _False_ exit point otherwise.

Consider the example of simulating queuing at a supermarket. If the entity attribute _QueueNumber_ is equal to 2 then that entity will be routed to the _True_ exit point which leads to processing at _Counter 2_.

<img width="539" alt="decide_module_model.JPG" src="%ATTACHURL%/decide_module_model.JPG" height="189" />

<img width="448" alt="Decide_module_by_Attribute.png" src="%ATTACHURL%/Decide_module_by_Attribute.png" height="257" />
---+++ Entity Type

Arena will route all of entites of the specifed entity type to the _True_ exit point and all other entity types to the _False_ exit point.

Consider the example of simluation an egg sorting factory. Suppose an egg can be a _size 6_ egg or a _size 7_ egg depending on its weight. If an egg has the _Entity Type_ 'size 6 egg' then that entity will be routed to the _True_ exit point which leads to the C _ollection of Size 6 Eggs_ while all other eggs are routed to the _False_ exit point which leads to the _Collection of Size 7 Eggs_.

<img width="586" alt="Decide_module_by_entity_type_example.PNG" src="%ATTACHURL%/Decide_module_by_entity_type_example.PNG" height="195" />

<img width="450" alt="Decide_Module_by_Entity_Type.PNG" src="%ATTACHURL%/Decide_Module_by_Entity_Type.PNG" height="257" />
---+++ Expression

Arena evaluates the expression and routes to the _True_ exit point if the expression is true or the _False_ exit point otherwise.

---++ N-way by Chance

%RED%Coming soon!%ENDCOLOR%

---++ N-way by Condition

%RED%Coming soon!%ENDCOLOR%

-- Main.MichaelOSullivan - 25 Aug 2009

   * Decide_module_by_entity_type_example.PNG:
This topic: OpsRes > WebHome > ArenaGuide > EditingDecideModules
Topic revision: r11 - 2010-01-26 - KatTrevor