House Event Profiles

House events are often used in "what-if" situations when user wishes to check what is the top event probability if some event definitely occurs or does not occur. The House event profiling option brings that "what-if" analysis to the new level. Multiple house event profiles may be created with specific states (True/False) of house events. Then each profile may be activated and calculated:

To create house event profile and perform its calculation:

1.	Open Fault Tree module

2.	Choose "House event profiles" from the "Library" menu.

3.	The profiles dialog will appear – with the list of house events in rows and list of profiles in columns. The "Current" column shows the current state of house events in events library.

4.	Right-click the grid, choose "Add profile". Profile dialog will appear – provide the profile code, description etc. Press Ok.

5.	New column in the profiles grid will appear, corresponding to the newly created profile.

6.	Intersection of profile column and house event row corresponds to event state in this profile. Select the desired states for eac profile.

7.	Select desired profile cell, right-click, choose "Select profile" from the popup menu. Profile column willchange its color.

8.	Click the "Calculate" button in the lower part of the dialog – the current fault tree will be calculated according to the selected profile and its house event states and calculation results dialog (MCS results) will appear.

Repeat steps 1-6 to create additional profiles. Repeat 6-8 steps to switch between profiles, perform calculations and work with the calculation results.