Tandem Capacity Model (TCM) Manual

From this dialog box, you can do the following:
a. From the History Database list, select or enter the name of the Capacity History database
that will be updated automatically after the weights are generated. The Capacity History
database is created if it does not already exist.
b. To select a name for the source of the transaction counts, select an apportionment table
file. If you have transaction count files, TCM Expert automatically identifies them. If
transaction count files are present, they override a Transaction Count table if both are
present. If you have neither a Transaction Count table nor transaction count files, you
must create a default table. For more information, see “Creating a Default Transaction
Count Table and Workload Apportionment Weights Table” (page 181).
If you are a TCM super user, the field “Percent of Selected CSVs used to generate” is
shown. If you are not a TCM super user, this field is hidden. The default is 67 percent.
This percentage is the percent of CSV files randomly selected by TCM Expert to generate
the apportionment weights.
c. To select the CSV sample data files to be used, highlight the files. Click and select either
the Remove or Add buttons. Press the Shift key while clicking the file names to select a
contiguous set of files. Press the Control key while clicking the file names to add or remove
a highlighted file from those selected.
d. To get information about a CSV file before you decide whether to use it, select the CSV
file name and click the CSV Info button. The CSV Info dialog displays.
The Number of Transactions field shows the total number of transactions of the type
selected in the Transaction field. The Transaction Mix field shows the percentage of
transactions in the CSV data of this transaction type.
Generating Expert Apportionment Weights 183