Buffer Tab

Buffer Tab: General

Capacity The maximum number of entities that can be in the buffer at one time.
Rule The way entities are stored in the buffer and subsequently released is controlled by one of three rules.

None Any entity can leave the buffer in any order. When the rule is set to “None” the first entity in the buffer will typically be first entity out of the buffer, but if a SEND command is issued for an entity from a buffer that has a none rule, any entity requested by the SEND command can be released, and is not restricted to the typical FIFO behavior.
FIFO When the FIFO rule is selected, the first entity entering the buffer must be the first entity out. Entities cannot be released from the buffer except in the order they arrived.
LIFO When the LIFO rule is selected, the last entity entering the buffer must be the first entity out. Entities cannot be released from the buffer except in the reverse order they arrived.
By Entity Type This rule will cause the entities entering the buffer to queue up in a FIFO rule by type.

Logic Opens the logic builder, which is used for defining the logic to be executed for each entity upon entering the buffer.

Buffer Tab: Batching

Batching options cause entities to be either grouped into a single entity or ungrouped into multiple entities in the buffer. This determines whether entities route to the next activity individually or as a group.

Type: Determines the type of batch in the buffer.

None No batching of entities occurs in the buffer.
Batch Entities entering the buffer are grouped into a batch prior to routing to the next activity. If this option is selected, a batch size must be entered.
Unbatch Entities entering the buffer as a batch are unbatched prior to routing to the next activity.
Rebatch Batches or entities entering the input buffer that were previously part of a batch are rebatched into their original batch size prior to entering the activity.
Accumulate The Accumulate option does not group entities into a batch, but rather holds the entities in the buffer until the number of entities specified in the Quantity field are reached. When the quantity is reached, the entities are released.

Quantity The number of entities in each batch, or the number of entities to accumulate.
By Entity Type When this option is selected, batching and accumulating are done for each entity type. For example, entity types EntA and EntB both enter a buffer. If "By (None)" is selected, both EntA and EntB can be batched together. If "By Entity Type" is selected, you can choose to batch only EntA entities together. Choosing <OTHER> will batch or accumulate all entity types that enter the buffer other than the specified entity types.
By Attribute When this option is selected, batching and accumulating are done according to the attribute value of each entity entering the activity. Select from the list of attributes which one will be evaluated for batching. In the grid, define the groups to be batched by specifying the value of the attribute and what the batch quantity will be for entities with that attribute value.