Deviations Manager

The Deviations are managed by clicking on Tools -> PHA -> Deviations Manager.

In order to conduct a PHA study the Deviations (Parameters and Guidewords) should be configured for the type of study.

By default PHA Comp is configured with default Deviations for a HAZOP.

Click on “Add New” to add a new Deviation or right click on a Deviation to edit or delete that Deviation.

Note that each Deviation must be unique, and a Deviation that duplicates an existing Parameter and Guideword can not be saved.

The Parameter and Guideword fields autocomplete based on previously entered data.

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Action Assessed Deviation Assumptions Attendees Branch Broadly Acceptable Risk Cause CBA Changelog Channel Columns Conditional Modifiers Consequence Continuous Demand CSV Custom Data Custom Failure Rate Custom XML Dangerous Failure Mode DATA Comp Defaults Determination Method Deviation Device Device Duty Drawing Number Edit Master Element Elements Example Export Factors Failure Rate FARADIP Filtering Getting Started Guidewords Hazard Human Error IEC 61508 Import Initiating Event Installation IPLs License LOPA Low Demand Mission Time Mitigated Event Frequency Mode Of Determination Mode of Operation Modules Mouseover Node Notes Operator Failure Parameters PFD PFD Achieved PFD Target PHA PHA Comp Placeholders Plant Life Project Overview RBD Recommendations Reports Result Risk Graph Risk Profile Risk Ranking Rows Safeguard Safety Requirement Specification Searching Sensitivity Analysis Sessions SIF SIL Achieved SIL Comp SIL Determination SIL Target SIL Verification SIS Sorting SRS Status Summary Target Frequency Target PFD Target PFH Target Risk Frequency Target Selection Target SIL Use As New Used Text Use Existing