Windchill Risk and Reliability Desktop Help > Windchill Event Tree > Event Tree Interface > Event Tree Column and Branch Results > Event Tree Columns Window
Event Tree Columns Window
The Event Tree Columns window displays a table with calculation results for the columns (events) in the active event tree. All columns but Column Identifier and Description are display-only. Before a result is calculated, number signs (#.#) are shown. After a result is calculated, values are shown. For more information, see Calculating Event Tree Results.
The Event Tree Columns window displays all of the event sequences that achieve the desired consequence. By default, this is success. However, under Event Tree in the System file properties, Sequence Display controls whether results are shown for successes only, failures only, or both successes and failures. When both successes and failures are shown, a tilde character (~) precedes failures. For more information, see Event Tree System File Properties.
The following table provides column descriptions. Only the data in Column Identifier and Description columns can be modified. All calculated results are shown as probability values. Results are updated each time the event tree is calculated.
Column
Description
Column Identifier
The unique identifier assigned to the event. While an identifier is assigned to the event when it is inserted, you can change it to any unique value. The format for the assigned identifier is specified by Event Tree Identifier, which appears under Identifiers in the System file properties. For more information, see Identifiers System File Properties.
Column
The number of the column in which the logic for the event is shown.
Short Code
An abbreviation for the event, which is used in the Event Tree Results table.
Unavailability
The unavailability calculated for the event.
Unreliability
The unreliability calculated for the event.
Frequency
The frequency calculated for the event.
Description
A description of the event tree column.