Definition
Definition selection
The Definition selection is mainly used to analyse a set of transaction measurements of the same type without analysing possible child transactions.
Within the Definition selection the Application and transaction definition tree is used in the multi-select mode. This mode will automatically allocate and assign a colour to the selected definition. This colour will then be used in the respective views (As shown in "definition selection") in the right section of the selection window.
This figure presents transaction measurements of our online CDDB database demo at http://www.myarm.info/music.html. Within a simple form a user can query a MySQL CDDB database using an ARM instrumented Apache web server and an ARM instrumented python script which then queries the MySQL database. In this example the HTTP transaction measurements are coloured red, the overall python PyCDDB script execution measurement is coloured blue and the time needed to connect to the MySQL database is coloured yellow.

Figure: The Definition-Selection
By default the Table view
is opened when a new Definition selection is created. The
following other views can be opened by pressing on the appropriate
Add-View button:
- Histogram view to get an overview of the distribution of selected transaction measurements.
- Graph view to get an overview of the transition of transaction measurements over time.
- Statistics view to get an overview of transaction statistic values.