Editing Fault Tree Gate Parameters

The FaultTree+ Edit Gate dialog allows the user to select the gate type, name and description. The user may also create the fault tree diagram using this dialog by selecting either the Add Gate Input or Add Event Input button.

A spreadsheet interface is also available for rapid access to and modification of gate parameters.

Editing Fault Tree Gate Parameters

The FaultTree+ Edit Gate dialog allows the user to select the gate type, name and description. The user may also create the fault tree diagram using this dialog by selecting either the Add Gate Input or Add Event Input button.

A spreadsheet interface is also available for rapid access to and modification of gate parameters.

Fault Tree Gate Features

• Select from gate types OR, AND, VOTE, NOT, XOR, INHIBIT, PRIORITY, TRANSFER or NULL.
• Enter name and description
• Alter background color from default settings
• Select retain results. Minimal cut sets and quantitative results retained for the gate during analysis
• Select 'Include In Partial Analysis' if this sub-system is required in the partial analysis
• Select Gate/Event inputs to the Gate
• Enter notes. Notes are displayed as a tooltip when the cursor is over the gate
• Enter Hyperlink to external document/file/web page etc.
• Select pagination. Fault tree sub-trees below this gate are drawn on a new page

Editing Fault Tree Event Parameters

The FaultTree+ Edit Event dialog allows the user to select the event failure model (failure characteristic), name and description.

A spreadsheet interface is also available for rapid access to and modification of event parameters.

Editing Fault Tree Events Features

• Select from failure model type RATE, FIXED, MTTF, DORMANT, SEQUENTIAL, ET INITIATOR, STANDBY, TIME AT RISK, BINOMIAL, POISSON, RATE/MTTR, WEIBULL, FIXED-PHASED, RATE-PHASED
• Enter name and description
• Select a CCF (common cause failure) model if required.
• Select Logic Mode if True/False logic is applicable
• Select background color if other than default is wanted
• Add the Event to up to 16 Event Groups.
• If Sequencing model is used, then select order of failures for the events.
• Select a generic failure model. Generic failure models are created by the user and may be applied to any basic event.
• Enter notes. Notes are displayed as a tooltip when the cursor is over the event.
• Enter Hyperlink. If selected, this will show up on the fault tree diagram