SIF Analysis Main Screen

The Analysis Main screen shows an overview grid, with a list of SIF Analyses.

Listing SIF Analyses (the Overview Grid)

To see the list of SIF Analyses:

• Click to the SIF Analysis Main Menu.
  Click on the SIF Analysis Main menu, to list all Analyses. 
• Use the scoping bar, the filter, or the search functionality to list the desired Analyses.

Find Analyses using the scoping bar / filter / search functionality. 

• The main grid will always show the approved data, if there is any. If desired, you can expand a SIF Analysis record using the  button in the record row. This way the draft versions will also be visible.

The SIF Analysis Main Screen, showing one record expanded. 

• Each record shows several fields, summarizing the SIF Analyses (see Table 5). To see more, click on the Settings button in the toolbar and add additional fields.

Click on the settings button to modify the grid.

 

Default Analyses data in the Analysis record:

Field /Column	Description
Expand	Expand or collapse an Analysis record using respectively the  and  button. This way the draft versions can also be shown.
Select	Check to select an Analysis.
Active	The Active flag shows for each SIF Analysis whether it is active or inactive:  Active SIF Analysis Inactive SIF Analysis (A SIF Analysis is first inactive. After the first Approval it becomes active and remains so, also when a new Draft version is created.)
Name	Name (ID) of the Analysis, click on the Analysis ID to open the Analysis details.
Description	Short Description for the selected Analysis.
AS	Assessment Status. The Assessment Status indicator turns green (OK) when a SIL (Target PFD) is available and: The PST >0 is entered. The required Subsystems are added (based on SIF type).
DS	Design Status.
PS	Performance – OK or Not OK - see Verifying SIF Performance.
FT	Fault Tolerance – OK or Not OK - see Verifying SIF Dangerous Fault Tolerance requirements.
SC	Success Criteria – OK or Not OK - see Defining SIF Success Criteria.
PFD	Probability of Failure on Demand - see Calculating SIF Achieved PFD and Verifying Integrity.
SIF mode	Demand vs. Continuous. See SIF Analysis General Tab
Error remarks	This is warnings generated by the SIF Analysis Consistency Check. You should to this before Approving the Design - see Approving the SIF Design.
Target SIL	This is the SIL from the SIF design details (active/approved as applicable) and is related to the Target PFD.
Target PFD	See Calculating SIF Achieved PFD and Verifying Integrity and Determining the SIF Analysis Target PFD
Achieved PFD	See Calculating SIF Achieved PFD and Verifying Integrity
Target RRF	Target Risk Reduction Factor
Achieved RRF	Achieved Risk Reduction Factor
Function group	This can be used to group your SIF Analyses according to the Equipment they belong to.
SIF type	The SIF type can be a “full” or “sensor only” or “final element only”. This is specified when the SIF is created.
Review Status	This shows the Approval Status of the Analysis, for instance Draft, Writer Approved, Level 1 Approved, Final Approved. See Approving the SIF Design.
Pending event type	Changes made to a Parent Object (e.g., SIF Analysis) are tracked via an Event, which is a draft of the Parent Object. All changes will be logged in a copy/trail of the Event up to the moment the Object is Final Approved. Then the Parent Object will be updated. Event types can, for instance be, “New LOPA Added”, “Changed”.
Review Hold	This is applicable to all migrated SIF Analyses. When the review is completed the check must be removed on the SIF Analysis General Tab.
Design Hold	Checked by default. When the design is done this can be manually unchecked on the SIF Analysis General Tab.
Assessment Hold	Checked by default. When LOPA is done this can be manually unchecked on the SIF Analysis General Tab.
Tag labels	Custom labels which can be assigned to each record.
Plant	Unit to which the Analysis is assigned to.
Unit	Plant to which the Analysis is assigned to.

For more information see Navigating IMS Main Menu Items and IMS Main Screen (Grid List).

SIF Analysis Menu Toolbar

There are several shortcuts or available features that the SIF Analysis toolbar can be used for, e.g., export SIF Analyses, add labels, etc. For more information see IMS Main Screen -Toolbar.

Take note:

• Normally a SIF Analysis is active after the first Final Approval. 
• To delete a SIF Analysis it must be in Draft (and Inactive). Thus, Final Approved SIF Analyses cannot be deleted.

Batch PFD Calculations

You can perform batch PFD calculations on multiple SIF Analyses from the SIF Analysis Main Screen menu toolbar:

• Select the SIF Analyses that you would like to calculate. 
• Click the Batch calculation button. 
• The batch calculation dialog will open and show how many of the selected Analyses will be calculated. Only SIF Analyses in Draft will be calculated. Note: The dialog also contains a Show listbutton that can be used to see a detailed list of the SIF Analyses. 
  Take Note

  Only SIF Analyses in Draft will be calculated.

• Click Calculate all.
• After the calculation, IMS will show how many SIF were calculated.

• You can click Show list to see the reasons for SIFs not calculated.
• Click Close when done.

Filtering SIF Analyses

From the SIF Analyses overview page, several filters can be used to drill down the search results for the shown list of Analyses. Filters include items such as:

• SIF Analysis name range
• Active
• Assessment on hold
• Design status
• Is safety critical
• Etc.

To filter a list:

• Click on the filter button.
• Check the filters that you want to use.
• Click Show ….

Click the filter button, select the desired filters, and click Show….

For more information see IMS Main Screen - Filters.