Tandem Capacity Model (TCM) Manual

3. Select the transaction whose trend you want to measure from the Transaction list.
4. If you want, modify the range of dates in the history database by entering new dates in the
From and To fields. The default is the entire history database. Those dates are displayed in
the fields.
5. Click OK.
6. Select Options > Calculate Now.
Use the transaction trend in the historical database to update the Planning Timeline screen.
A notation that the transaction rate is based on historical trend is displayed in red.
To Generate a Timeline Chart
To generate a Timeline Chart:
1. Open a Performance model.
2. Select Options > Calculate Now to update the Performance model data.
3. Select Chart Create > Timeline Chart. The Timeline Chart dialog box appears.
4. Select Transaction (to chart) and click OK. The Timeline Plot dialog box appears.
The host response time and the throughput data from the Planning Timeline model are then
plotted on the screen. Figure 26 (page 94) and Figure 27 (page 94) show sample Planning
Timeline Model charts.
Using the Planning Timeline Model 93