LOPA Details Page - Overview

Updated on 09 Aug 2024
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The LOPA Details Page is where the Layer of Protection Analysis (LOPA) takes place. The Consequence of the Hazard Scenario, the Initiating Event’s Frequency, and the likelihood of failure of the layers of protection, are all assessed, to approximate the risk. The primary purpose is to assess the adequacy of the existing or proposed layers of protection against a Hazard Scenario.

Opening a LOPA Details Page

To open a LOPA details page, click on the desired LOPA ID hyperlink in the LOPA main screen (or any other screen).

lopa-details-image-c6xaio0x Click on a LOPA ID to open the LOPA details page.The LOPA details page can be divided into a header and several Tabs.

The header of the detail page shows the name of the LOPA / LOPA ID and some other functional options.

The LOPA details header.

The LOPA Details screen header icons.

Icon	Action / Name	Description
	LOPA Name	The LOPA description together with a unique name.
	Active / Inactive	If there is a green underline for the LOPA name, it means the LOPA is active. Inactive will show as “grey”. If the LOPA is in Draft, it will be inactive. (A LOPA is first inactive. After the first Final Approval it becomes active and remains so, also when a new Draft version is created.)
	Event History	The Event History shows the list of events that has been performed for this LOPA.
	Pin	The PIN feature allows the user to pin down all related objects based on this LOPA.
	Action items	Add view and manage action items for the LOPA. The number of Actions created will show. If now Actions have been created, the button will say “Add”.
	Previous and Next	Navigation feature for moving to a previous and next LOPA from the overview.

Side Tabs

On the side of the LOPA details page, you will find several Tabs. These can be used to navigate to the different sections of the LOPA. By default, the LOPA Tab will be selected when you open a LOPA. The information shown on the tabs will apply to the LOPA version that is open at the time.

The side tabs.The side Tabs:

Icon	Tab Name	Description
	LOPA	This Tab is open by default. Here you can define Initiating Events (and Frequencies), as well as the Barriers (and PFDs). Then you can calculate and evaluate the Overall SIL to determine the adequacy of the existing or proposed Barriers against the Hazard Scenario. See LOPA Tab.
	Team Composition	Here you can specify the Start Date and End Date for your LOPA Study (Meeting details) and the Team Composition. You can also document the times when the Participants worked on the LOPA, via an attendance register. See Team Composition Tab.
	Documents	Here you can add Attachments. See Documents Tab.
	Revision History	Here both the Active and (previously) Approved LOPA versions are shown. See Revision History Tab.
	Recommendations Summary	Here Recommendations can be entered. See Recommendations Summary Tab.
	Safety Critical Elements	All Safety Critical Elements are listed here. They can be exported. See Safety Critical Elements Tab.
	Actions	All the Actions created are summarized here. They can be exported. See Actions Tab.
	Additional Information	The Additional Information tab will appear only if the LOPA has Study data. See Additional Information Tab.