Batch modules are the grouping mechanism for Arena simulation models. The Type of batch must be specified as either permentant or temporary. Temporary batches must later be split using a Separate module. The Size and Rule of a Batch is user-defined. Any specified number of entering entities or may be matched together based on attribute.

Entities arriving at the Batch module are placed in a queue until the required number of entities has accumulated. Once accumulated, a new Representative
Entity is created.