AGENDA Queue related Resource related System related Homework assignment ADDITIONAL MODELING STRUCTURES Queues related Resource related System status QUEUE RELATED Arrivals element ARRIVALS ELEMENT Force entities to appear Modeling customers waiting before opening time Make entities appear for demonstration purposes ... ARRIVALS ELEMENT Generates entities from within the experiment Types operand... Time operand... Batch size Assignments Needs to have an identifier number ARRIVALS TYPE OPERAND ARRIVALS TIME OPERAND Time First Start of replication Last End of replication Warmup End of warmup period from replicate element Every Act like a create block Keyhit Whenever the specified key is pressed RESOURCE RELATED ELEMENTS Schedules... Sets... SCHEDULES Allows capacity of resources to change over time Specified by pairs of resource capacity and capacity duration Schedule must be identified by name not a number Must be referenced in resource element Capacity entity rule from resources element Ignore – Waits until any service is over then goes on the remaining break Preempt – Immediately goes on a break Wait – Waits until any service is over then goes on a full break SETS Defines groups of similar elements Permits the referencing with a common name and index Sets of Resources Queues Pictures Etc. Explicitly designate members name, member1, member2, etc. SYSTEM RELATED FINDJ BLOCK FINDJ BLOCK Searches status of queues and resources for making selection decisions Arguments Start of range End of range Search condition, expression, min, max Returns value in system variable J Example Go to the least busy parallel clerk and queue combination MIN(NQ(CLERKQS(J))+NR(CLERKS(J)))