1. SEA TAC example 2 types of customers, coach arrival rate exp m=1min & 1st class arrival rate uniform 4-5min. 1 Q for each class of customer, 1 server for 1st class uniform 5-8 mins, 4 servers for coach, 1@ normal m=15 sd=5, 3@ uniform 5-10 min. How long each type of customer in line

2. Chapt 7 (portions) Read/ Write Nodes (pgs 222-228) Assembly Modeling (pgs 239-262) Accumulate Node Batch/ Unbatch Node Control Statements

3. Interface & Assembly Build on Basic concepts from chapters 5 & 6 Able to integrate/ interface software with other programs Provided by reading inputs from files, spreadsheets, databases Then outputted to files, spreadsheets….. Able to model the assembly of entities into a single entity ie CPM, collect up to a certain # then release entities Also retrieve entities that were combined, ie separate parts after they were batched together for a specific process

4. Read Node Used to read one or more values from an external file Table 2.9 Users Guide Node = readin Read from spreadsheet three columns of data 3 branches

5. Write Node Used to write values to an external file ie.xls Called sentoxls put in file called airportque.xls send TNOW & ATRIB(2) real values 3 + decimal pt + 1 following

6. Write Example Single server to obtain table with 4 columns, entity #, arrival time, wait time, system time

7. Assembly Modeling Wait until four units of a order arrive before boxing and shipping Start an operation that needs one bolt, one washer, one nut, spud wrench Start activity “pour foundation” once activities of unslab elect, underslab, plumb, gravel & compact are completed Accumulate Batch Unbatch

8. Accumulate Node Collect entities until a certain number are reached When achieved the node is released FR # til 1st release SR # til subsequent release Save atrib of entity of: # of branches

9. Pert example

11. Batch Node Collect entities until a certain number are is reached Then release a single entity that represents the batch Typically used for modeling pallets and loads of cars/ trucks that accumulate before moving Batch from when Collecting values on ATRB..then released Sorted on /default 1

12. UnBatch Node Put entities of a batch back into the network or split an entity into multiple units Individual entities of the batch are restored

13. Batch Unbatch example

15. Chapt 7 examples Read example 7-1 read the following into a model, valuse of ATRIB[0], ATRIB[1] and LTRIB[1] from file ATTRIBUTES.DAT for 1000 entities

16. Chapt 7 examples Write example 7-2 (b) write out the values of current simulated time, the first real attribute, and the first integer attribute of the current entity to the file TRACE.DAT

17. Chapt 7 examples 7-9 Use ACCUMULATE to:a) all preceding activities must be completed before a successor can be started, b) any one activity must be completed before a follow one activity can be completed, c) 3 out of 5 activities must be completed before an activity can be completed a) 3 predecessors

18. Chapt 7 examples 7-9 Use ACCUMULATE to: b) any one activity must be completed before a follow one activity can be completed, c) 3 out of 5 activities must be completed before an activity can be completed b) 1 predecessors Or use

19. Chapt 7 examples 7-9 Use ACCUMULATE to:c) 3 out of 5 activities must be completed before an activity can be completed c) 1 predecessors

20. PERT Example Collect entities until a certain number are is reached When achieved the node is released Concrete slab after excavation Vapor Barrier Form WWF CompactGravel U/S plumb U/S elect

21. PERT Example Concrete slab after excavation

22. Control Statements Class assignment simulate model shown in figure 7-1 of book show out put on xls chart due 11/26

23. Where are we going Skip Chapt 8, will do Chapt 9 11/19 Chapt 10 11/26 No class 12/3 Projects due 12/10