| Transactions |
Transactions
Transactions are generated in three components: Sampler, Transaction Pool, and Adder. Transactions are discrete entities that traverse the simulation network, and they can be used to represent physical and conceptual things such as a partially assembled refrigerator on an assembly line, a telephone call in a phone system, or an event such as a check on the size of a queue.
You can view the movement of transactions through the network
by pressing the Animate button on the
command panel.
Bitmap images can be assigned to transactions in each of the
three components in which they are generated.
For example, the Transaction Image push button on
the Sampler control panel
opens a window from which you can choose an image to
display on the transactions that originate at that Sampler.
Figure 4.1 shows an example.
Although Figure 4.1 shows the
image SASHELP.ORIMG24.PHONE, any image in a SAS catalog can
be used.
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Figure 4.1: Setting an Image for a Sampler Transaction
When there are no references to transactions in the simulation, the transaction is disposed of. This means that if a transaction does not reside in a queue, is busy in a server, is traversing an arc, or is being processed by another elementary component, it will be disposed of. You do not have to explicitly destroy transactions.
Attributes
Trigger Messages
Timing Transaction Arrivals