Tandem Capacity Model (TCM) Manual

Change Printer Fonts
The Change Printer Fonts option changes the fonts that TCM uses to print its data. Due to the
difference between printers and monitors, different fonts are frequently required for printing and
displaying data.
TCM comes with a default printer font setting that might not be appropriate for your specific
requirements. It is recommended that you select Preview from the Print option to ensure that your
printer fonts are appropriate to your needs before printing a screen.
NOTE: The fonts you select with this option are used only when TCM prints a screen. To select
the fonts used in the screen display, select the Change Display Fonts option from the Display tab.
Printer Setup
The Printer Setup option lets you specify the printer you want to use and how it should be configured.
For more information, refer to the section on file printer setup in the Microsoft Excel online help.
Options Tab
The Options tab provides various options for working with a Performance model and for ensuring
the model’s security.
Change Authorization Level (SF6)
The Change Authorization Level option changes your authorization level, if you have a valid
password. Users with a TCM administrator or superuser authorization level have access to more
TCM options than users with a capacity planner authorization level. For more information on TCM
security and authorization levels, see “Security” (page 68).
Calculate Now (F9)
The Calculate Now option instructs TCM to calculate any changes you made to the screens. When
batch response times are being calculated, the Excel status bar displays messages showing how
many batch transactions are currently in the model being solved and how many iterations have
been completed while searching for the current solution.
Undo Entry
The Undo Entry option allows you to reverse the last action you performed if possible.
Notepad (SF2)
The Notepad option allows you to attach notes to a selected screen in the model. A dialog box
provides room for a 5-line note, which can be edited by typing over, for the selected screen. Press
the Tab key to move between notes and press the Enter key to complete a note.
NOTE: If you print a screen that has notes attached to it, the notes are printed first on a separate
page.
Select Response Time Method
The Select Response Time Method option allows you to select the response time method. The default
is average. You can also select 90th, 95th, or 99th percentile response time. For example, if the
response time is 1 second and average response time is selected, the average response time of
transactions is 1 second. If 90th percentile is selected, 90 percent of the transactions have a
response time of less than or equal to 1 second.
176 The Performance Model