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Setting Risk Analysis Options for Analysis Types

An analysis type is a collection of preferred settings for strategy development analysis. The settings range from specifying how analysis titles are defaulted, to how avoidance savings are recorded on failure modes, to how risk analysis is performed (if at all), to whether analyses must be sent for approval. Selecting an analysis type on an analysis quickly ensures that its settings are correct and consistent with your organization’s standards.
When defining an analysis type, you can specify the kinds of analysis it can be used with: MTA2, RCM2, RBI, CPR, SIF, HAZOP, Design FMECA, or a combination. For example, you could create two types for MTA2, one with risk analysis and one without. Or you could create a type that applies to both MTA2 and RBI analyses.
This topic explains how to set the risk analysis options for a type that supports risk analysis: MTA2, RCM2, RBI, SIF, and HAZOP. For information about setting up general, analysis, and audit report options, see Setting up Analysis Types. To set failure mode options, see Setting Failure Mode Options for Analysis Types.
There are four initial options for risk analysis:
•
Use evaluation forms – The analysis team uses pop-up questionnaires to evaluate the probability of failure, consequences (economic, health and safety, environmental, and reputation), and confidence factors. APM then calculates the risk and shows it in the risk matrix. This process can be used with failure modes or demand scenarios.
•
Use weighted severity and relative risk – The analyst assesses the severity of economic, health and safety, environmental, and reputation consequences, assigning a number (weighting) to each factor. The analyst also enters the probability of failure and the confidence factor. APM then calculates the relative risk and shows it in the risk matrix. This process can be used with failure mode risk analysis only; it cannot be used to evaluate demand scenarios.
•
Use embedded evaluation forms – The analysis team selects options in the Risk tab of the Maintenance Action Plan window to evaluate probability and consequence factors. Safety analyses (SIF and HAZOP) use this type of form.
•
Not performed – Risk analysis features are not shown in the analysis window.
This topic explains how:
•
To Set Options for Using Pop-up Evaluation Forms
•
To Set Options for Using Weighted Severity and Relative Risk
•
To Set Options for Using Embedded Evaluation Forms

To Set Options for Using Pop-up Evaluation Forms

Note: This section pertains to MTA2, RCM2, and RBI analysis. For information about setting risk options for SIF and HAZOP analyses, see To Set Options for Using Embedded Evaluation Forms.
1.
Double-click the analysis type to open the Strategy Development Analysis Type window. Select the Risk Options tab.
2.
Click Edit to modify the analysis type.
3.
Click Use evaluation forms with pop-up evaluation dialogs.
4.
On the General tab, select whether risk analysis is performed on failure modes or on demand scenarios. If you select By demand scenario, the Demand Scenarios tab is added and the Probability tab is removed.
5.
Set the following options:
Setting Name
Description
Risk matrix
The risk matrix specified as the default for risk analyses of this type. The matrix displays the results of the failure mode’s probability and severity evaluations, as well as its relative risk (criticality).
Supports detectability
The detectability value assigned in the criticality assessment is used in the calculation that determines the failure mode’s relative risk number.
Default the action plan strategy and frequency from the risk matrix
If this option is selected, when the risk analysis has been performed, the recommended strategy and frequency (if applicable) are copied from the risk matrix entry to the action plan.
6.
If risk analysis is performed on demand scenarios, select the Demand Scenarios tab.
7.
Set the following options:
Setting Name
Description
Confidence questionnaire
Questionnaire used to perform the confidence evaluation for likelihood of failure.
Probability of failure matrix
Matrix to use when the probability of failure is based on a demand scenario.
8.
If risk analysis includes susceptibility to failure analysis, select the Susceptibility tab.
9.
Set the following options:
Setting Name
Description
Susceptibility to failure analysis is performed
A susceptibility to failure evaluation examines the asset’s non-age related degradation patterns. The evaluation uses a questionnaire to review the asset’s composition and materials, for example.
Questionnaire
A susceptibility to failure questionnaire presents the analyst with a series of questions. Like a decision diagram, the response to one question determines the next question, and so on, until a conclusion is reached.
10.
If risk analysis is performed on failure modes (rather than demand scenarios), select the Probability tab.
11.
Set the following options:
Setting Name
Description
Evaluation performed
When selected, this option allows the evaluation to be performed.
Use of evaluation questionnaires is allowed
When this option is selected, analysts can fill in an online form.
Evaluation form
Evaluation form that analysts use to perform the assessment.
Form can be changed at analysis time
If this option is selected, the analyst can select a different evaluation form while using the questionnaire.
Evaluation type
Evaluation forms can have these types:
•
Simple – The evaluator can select one statement for each category on the form.
•
Detailed – The evaluator can select two statements for each category on the form.
Use of evaluation buttons is allowed
When this option is selected, analysts can simply click the button that represents the result of their evaluation.
Score set to use
A score set assigns scores for each of the appropriate failure probabilities or consequence severities. Score sets make it possible to evaluate assets based on their material types or other characteristics.
Probability is based on estimated time between failures
The probability of failure is determined by the estimated time between failure (ETBF) without maintenance tasks. When this option is enabled, the Estimated time between failures without maintenance box appears in the Failure Mode window, Criticality tab.
12.
Select the Economic tab.
13.
Set the following options:
Setting Name
Description
Evaluation performed
When selected, this option allows the evaluation to be performed.
Number of trades
The number of trades used in economic consequence and feasibility evaluations to estimate labor costs for a failure. The maximum number is 5.
14.
For each of the trades, select a value from the list defined for the site.
15.
Select the default evaluation type:
•
Simple – The evaluator can select one statement for each category on the form.
•
Detailed – The evaluator can select two statements for each category on the form.
16.
In the Economic impact and range to use list, select the type of values used in the evaluation, for example, standard scores or alternates.
17.
When Use of evaluation buttons is allowed is selected, analysts can simply click the button that represents the result of their economic evaluation. If this option is not selected, the buttons are disabled.
18.
Set options for supporting information in the questionnaire:
Setting Name
Description
Show supporting information notebook
When selected, the evaluation form displays a small panel containing tabs for the failure mode asset’s reference information.
Show asset properties
When selected, the evaluation form’s information notebook contains the Asset Properties tab. This tab displays the failure mode asset’s general information, documents, photographs, manufacturer, and so on.
Show asset history
When selected, the evaluation form’s information notebook contains the History tab. This tab displays the failure mode asset’s checksheets, failures, and more.
Show asset barriers
When selected, the evaluation form’s information notebook contains the Barriers tab. This tab displays the failure mode asset’s barriers.
Show damage mechanism attachments
When selected on RBI analyses, the evaluation form’s information notebook contains the Attachments tab. This tab displays the documents attached to the damage mechanism on which the failure mode is based.
19.
Select the Health and Safety tab.
20.
Set the following options:
Setting Name
Description
Evaluation performed
When selected, this option allows the evaluation to be performed.
Use of evaluation questionnaires is allowed
When this option is selected, analysts can fill in an online form.
Evaluation form
Evaluation form that analysts use to perform the assessment.
Form can be changed at analysis time
If this option is selected, the analyst can select a different evaluation form while using the questionnaire.
Evaluation type
Evaluation forms can have these types:
•
Simple – The evaluator can select one statement for each category on the form.
•
Detailed – The evaluator can select two statements for each category on the form.
Use of evaluation buttons is allowed
When this option is selected, analysts can simply click the button that represents the result of their evaluation.
Score set to use
A score set assigns scores for each of the appropriate failure probabilities or consequence severities. Score sets make it possible to evaluate assets based on their material types or other characteristics.
Economic impact to use
The type of values used in the evaluation for the economic impact, for example, standard values or alternates.
21.
Select the Environmental and Reputation tabs in turn and set the options for using evaluation questionnaires and buttons.
22.
Select the Confidence tab.
23.
Change the default settings as required:
Setting Name
Description
Positive adjustments
The maximum positive score for the confidence questionnaire. For example, if the positive adjustment is “2.0” and the sum of the selected responses’ confidence adjustments is “2.10”, APM retrieves the confidence factor assigned an evaluation score of “2.0”.
Negative adjustment
The maximum negative score for the confidence questionnaire. For example, if the negative adjustment is “-2.0” and the sum of the selected responses’ confidence adjustments is “-2.10”, APM retrieves the confidence factor assigned an evaluation score of “-2.0”.
Note: If you set the positive and negative adjustments to 0.00, the confidence evaluation questionnaire’s adjustment values are used.
24.
Select the Inspection Factors tab.
25.
Select the appropriate options:
Setting Name
Description
Inspection factor confidence evaluation performed
A confidence evaluation is performed to determine the inspection factor. This option is only relevant when risk analysis is performed using pop-up evaluation forms. The Confidence tab appears in the Maintenance Action Plan window.
Matrix to use
Options are:
•
3D matrix – based on degradation type, criticality, and confidence factor
•
4D matrix – based on degradation type, criticality, confidence factor, and asset integrity group
26.
Select the Type of Inspection tab.
27.
Enable and assign the questionnaire that has been designed for your organization. Type of Inspection questionnaires are used in risk-based inspection (RBI) analyses and other types of analyses (for example, MTA2 or RCM2).
28.
Select the Risk Plot tab. The risk plot chart can show either a single risk tolerance line or colored areas for one or more risk levels.
29.
Select the appropriate option:
•
Risk plot uses a single risk line – risk plot chart displays a line to indicate the failure mode’s initial risk. Select the chart line style from the list, for example, “FM risk tolerance line”. Here is an example of a risk chart with a single line:
•
Risk plot uses areas to show risk – Each severity level is represented by a colored area in the chart. The window changes as follows:
Select the appropriate chart line style for each risk level that you wish to show. Here is an example of a risk chart with all five areas:
30.
When you have finished defining risk analysis settings, click OK.

To Set Options for Using Weighted Severity and Relative Risk

Note: This section pertains to MTA2, RCM2, and RBI analysis. For information about setting risk options for SIF and HAZOP analyses, see To Set Options for Using Embedded Evaluation Forms.
1.
Double-click the analysis type to open the Strategy Development Analysis Type window. Select the Risk Options tab.
2.
Click Edit to modify the analysis type.
3.
Select Use weighted severity and relative risk.
4.
On the General tab, set the following options:
Setting Name
Description
Risk matrix
The risk matrix specified as the default for risk analyses of this type. The matrix displays the results of the failure mode’s probability and severity evaluations, as well as its relative risk (criticality).
Supports detectability
The detectability value assigned in the criticality assessment is used in the calculation that determines the failure mode’s relative risk number.
Default the action plan strategy and frequency from the risk matrix
If this option is selected, when the risk analysis has been performed, the recommended strategy and frequency (if applicable) are copied from the risk matrix entry to the action plan.
5.
Select the Probability tab. To determine the probability of failure based on ETBF, select Probability is based on estimated time between failures. When this option is enabled, the Estimated time between failures without maintenance box appears in the Failure Mode window, Criticality tab.
6.
Select the Risk Plot tab. The risk plot chart can show either a single risk tolerance line or colored areas for one or more risk levels.
7.
Select the appropriate option:
•
Risk plot uses a single risk line – risk plot chart displays a line to indicate the failure mode’s initial risk. Select the chart line style from the list, for example, “FM risk tolerance line”. Here is an example of a risk chart with a single line:
•
Risk plot uses areas to show risk – Each severity level is represented by a colored area in the chart. The window changes as follows:
Select the appropriate chart line style for each risk level that you wish to show. Here is an example of a risk chart with all five areas:
8.
If risk analysis includes susceptibility to failure analysis, select the Susceptibility tab.
9.
Set the following options:
Setting Name
Description
Susceptibility to failure analysis is performed
A susceptibility to failure evaluation examines the asset’s non-age related degradation patterns. The evaluation uses a questionnaire to review the asset’s composition and materials, for example.
Questionnaire
A susceptibility to failure questionnaire presents the analyst with a series of questions. Like a decision diagram, the response to one question determines the next question, and so on, until a conclusion is reached.
10.
When you have finished defining risk analysis settings, click OK.

To Set Options for Using Embedded Evaluation Forms

1.
Double-click the analysis type to open the Strategy Development Analysis Type window. Select the Risk Options tab.
2.
Click Edit to modify the analysis type.
3.
Click Use embedded evaluation forms.
Note: The Safety risk level thresholds options are not available if the analysis type does not include SIF or HAZOP analyses.
4.
Set the following options:
Setting Name
Description
Risk matrix
The risk matrix specified as the default for risk analyses of this type. The matrix displays the results of the failure mode’s probability and severity evaluations, as well as its relative risk (criticality).
Supports detectability
The detectability value assigned in the criticality assessment is used in the calculation that determines the failure mode’s relative risk number.
Default the action plan strategy and frequency from the risk matrix
If this option is selected, when the risk analysis has been performed, the recommended strategy and frequency (if applicable) are copied from the risk matrix entry to the action plan.
5.
Select the Probability tab.
6.
Set the following options:
Setting Name
Description
Evaluation performed
When selected, this option allows the evaluation to be performed.
Use of evaluation questionnaires is allowed
When this option is selected, analysts can fill in an online form.
Evaluation form
Evaluation form that analysts use to perform the assessment.
Form can be changed at analysis time
If this option is selected, the analyst can select a different evaluation form while using the questionnaire.
Evaluation type
Evaluation forms can have these types:
•
Simple – The evaluator can select one statement for each category on the form.
•
Detailed – The evaluator can select two statements for each category on the form.
Use of evaluation buttons is allowed
When this option is selected, analysts can simply click the button that represents the result of their evaluation.
Score set to use
A score set assigns scores for each of the appropriate failure probabilities or consequence severities. Score sets make it possible to evaluate assets based on their material types or other characteristics.
7.
Select the Economic tab.
8.
Set the following options:
Setting Name
Description
Evaluation performed
When selected, this option allows the evaluation to be performed.
Evaluation form
Evaluation form that analysts use to perform the assessment.
Risk relevant
When selected, this option ensures that the evaluation is available in the risk analysis.
9.
Select the Health and Safety tab.
10.
Set the following options:
Evaluation performed
When selected, this option allows the evaluation to be performed.
Use of evaluation questionnaires is allowed
When this option is selected, analysts can fill in an online form.
Evaluation form
Evaluation form that analysts use to perform the assessment.
Evaluation type
Evaluation forms can have these types:
•
Simple – The evaluator can select one statement for each category on the form.
•
Detailed – The evaluator can select two statements for each category on the form.
Score set to use
A score set assigns scores for each of the appropriate failure probabilities or consequence severities. Score sets make it possible to evaluate assets based on their material types or other characteristics.
Economic impact to use
The type of values used in the evaluation for the economic impact, for example, standard values or alternates.
Risk relevant
When selected, this option ensures that the evaluation is available in the risk analysis.
11.
Select the Environmental and Reputation tabs in turn and set the options for using evaluation questionnaires.
12.
Select the Confidence tab.
13.
Change the default settings as required:
Setting Name
Description
Positive adjustments
The maximum positive score for the confidence questionnaire. For example, if the positive adjustment is “2.0” and the sum of the selected responses’ confidence adjustments is “2.10”, APM retrieves the confidence factor assigned an evaluation score of “2.0”.
Negative adjustment
The maximum negative score for the confidence questionnaire. For example, if the negative adjustment is “-2.0” and the sum of the selected responses’ confidence adjustments is “-2.10”, APM retrieves the confidence factor assigned an evaluation score of “-2.0”.
Note: If you set the positive and negative adjustments to 0.00, the confidence evaluation questionnaire’s adjustment values are used.
14.
Select the Inspection Factors tab.
15.
Select the appropriate options:
Setting Name
Description
Inspection factor confidence evaluation performed
A confidence evaluation is performed to determine the inspection factor. This option is only relevant when risk analysis is performed using pop-up evaluation forms. The Confidence tab appears in the Maintenance Action Plan window.
Matrix to use
Options are:
•
3D matrix – based on degradation type, criticality, and confidence factor
•
4D matrix – based on degradation type, criticality, confidence factor, and asset integrity group
16.
Select the Type of Inspection tab.
17.
Enable and assign the questionnaire that has been designed for your organization. Type of Inspection questionnaires are used in risk-based inspection (RBI) analyses and other types of analyses (for example, MTA2 or RCM2).
18.
Select the Risk Plot tab. The risk plot chart can show either a single risk tolerance line or colored areas for one or more risk levels.
19.
Select the appropriate option:
•
Risk plot uses a single risk line – risk plot chart displays a line to indicate the failure mode’s initial risk. Select the chart line style from the list, for example, “FM risk tolerance line”. Here is an example of a risk chart with a single line:
•
Risk plot uses areas to show risk – Each severity level is represented by a colored area in the chart. The window changes as follows:
Select the appropriate chart line style for each risk level that you wish to show. Here is an example of a risk chart with all five areas:
20.
When you have finished defining risk analysis settings, click OK.