Tandem Capacity Model (TCM) Manual

Update History With Selected CSVs
The Update History With Selected CSVs option enables you to update a History file with selected
CSV files. If TCM Expert finds inconsistent transaction costs, it reports this information to you in a
dialog box.
Create Default Transaction Count Table
The Create Default Transaction Count Table option enables you to create a default Transaction
Count table based on a selected CSV file. It also checks for transaction cost consistency in the
History file.
To create a default Transaction Count table:
1. Select TCM Expert from the “TCM Initial Menu” (page 66).
The Specify Custom Directory dialog box appears.
2. Specify a custom folder and click OK.
3. Log on as an administrator or super user. For more information about this step, see “Changing
Authorization Levels” (page 69).
4. If you do not have an existing Apportionment Weights table or Transaction Count table, select
TCM Expert > Create > Default Transaction Count Table.
The Default Transaction Count Table dialog box appears. TCM Expert provides a default
Transaction Count table name and selects a CSV file from which to generate the default table.
Click OK to accept the defaults or choose a different name and CSV file and then click OK.
5. If you have a type T (TMF) process category defined in the selected CSV file, the Create Default
Apportionment Tables dialog displays.
Using your knowledge of the application, you can select which transactions are audited (or
not audited) by placing them in the appropriate list. When the default Apportionment Weights
table is created, audited transactions are indicated by a 1 for any type T process category.
Unaudited transactions will be indicated by a 0.
6. Click OK. TCM Expert generates a default Transaction Count table and Apportionment Weights
table and displays the newly generated “Transaction Count Table” (page 118).
7. Examine the default Transaction Count table. If you want to make changes:
a. Select Options > Unprotect Admin Fields.
b. Enter the corrected values.
c. Select Options > Protect Admin Fields.
8. Examine the default Apportionment Weights table. To navigate to that table, select Find >
Apportionment Weights Table.
TCM displays the default “Workload Apportionment Weights Table” (page 116).
9. For process categories for which you have specific application knowledge, you might want
to override the default Expert Flag and enter your own numbers. The Expert Flag indicates
whether TCM Expert should generate a value for the process category. The default for the
TMF (T), Disk (D), Fixed (F), and Ignore (Z) process categories is N (no). The default is also N
for server categories whose names exactly match the transaction names. The default value for
all other process categories is Y.
If you want to override Expert’s calculations for any category marked with a Y (yes):
a. Select Options > Unprotect Admin Fields. TCM makes modifiable fields shaded.
b. Type an N in the Expert Flag column of the category you want to override and enter the
values you think are correct under the transaction columns.
c. Select Options > Protect Admin Fields.
Expert Tab 133