4. PRESENTING FORECASTED DATA › 4.6 Case Studies

4.6 Case Studies

The Case Studies Section presents three studies that
illustrate the use of Presentation Graphics with historical
and forecasted data.

The first case study, Extended Example I/O Workload Analysis,
uses the 9021-711 I/O workload study introduced in Section
3.3.3.1 and forecasted in Section 6.6.1.  This study shows a
simple case of plotting historical data and the forecast
generated by Univariate Model Forecasting.

The next case study, Performance Group/Period Workload
Tracking, continues the performance group workload tracking
study introduced in Section 3.3.3.2 and continued in Section
7.6.2.  This study shows you how to use Presentation
Graphics to track growth in TSO transaction rates.  Following
this is a similar study, System Workload and Performance
Profile, using the system profile resource element file from
the Capacity Planning database file originally developed in
Section 3.3.3.5 and continued in Section 6.6.3.

The final case study, Tracking Previous Forecasts of Resource
Utilization, shows you how to prepare a quarterly reporting
system.  This study shows how you can use multiple forecasts
maintained in the same Capacity Planning database file in a
single report, allowing you to project future trends and
track the effectiveness of your earlier forecasts at the same
time.

The following case studies are presented by section:

 1 - Extended Example I/O Workload Analysis
 2 - Performance Group/Period Workload Tracking
 3 - System Workload and Performance Profile
 4 - Tracking Previous Forecasts of Resource Utilization