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Software FAQs

What is the Analytics tab in PHAWorks RA Edition?

Analytics allows the generation of a variety of analytics to provide insights into the results of the study.

PHA studies contain so much data that a manual review is precluded from yielding real insights into their results. However, valuable information can be extracted using various analytics that consider the entire contents of a PHA study and provide a deeper analysis of the complete set of scenarios for a process. This enables better decisions to be made on where and how risk reduction resources should be allocated.

Analytics is available for all templates except for Asset-Based SVA, Scenario-Based SVA, Sneak-Path SVA; however, analytic options may vary for example if a template has scenarios.

Available Analytics:

  • Worksheet Entry Counts Tab - This analytic counts the number of occurrences of worksheet entries as selected, and optionally filtered, by the user. It provides insights into specific aspects of study results, e.g., the number of causes that are human failures and result in a particular consequence in a specific node. Entries marked as comments are not counted. Note that the use of references can create ambiguous results.

  • Scenario Query Tab - This analytic provides a display of project scenarios that meet user-defined search criteria. It provides insights into scenarios with particular characteristics in a study, e.g., fire scenarios for a specific vessel in a process that are caused by control system failures.

  • Risk Profiles Tab - This analytic counts the numbers of entries for a selected worksheet column according to their severity or risk values. It can be used to examine risk allocation within a process and across processes at a facility, which can assist with the allocation of risk reduction resources. It can be used to compare PHA studies for similar processes, which can help with quality control.

  • Hierarchy of Controls Tab - This analytic counts of safeguards for each category in the hierarchy of controls. It provides insights into the reliance of a process on different categories in the hierarchy of controls. Reliance on higher category items generally indicates a safer process than one that relies on lower category items.

  • Critical Safeguards Tab - This analytic displays and counts safeguards associated with each severity or risk level. It provides insight into which safeguards are most important.

  • Protection Layer Counts Tab - This analytic displays protection layers (safeguards or recommendations) found in the study and counts scenarios and risk data associated with each protection layer. It provides the relative importance of protection layers, e.g. a specific relief valve may appear in fewer scenarios than manual shutdown of the process but it may protect against higher severity scenarios.

  • Protection Layer Attributes Tab - This analytic displays protection layer (safeguard or recommendation) attributes found in the study and counts occurrences and risk data associated with each attribute. It provides the importance of protection layers by their attributes, e.g. the percentage of all safeguards in a project that are human or that are engineered and the scenario severity and/or risk levels they protect.

  • Attribute Counts Tab - This analytic counts the number of occurrences of the selected attributes for selected worksheet columns and their associated risk data. It provides insights into the distribution of worksheet entries according to their characteristics, e.g., the distribution of causes by equipment failures, human failures, and external events; the distribution of hazardous events by toxic release, fire, and explosion; or the distribution of consequences by their impacts on people, property, and the environment. It yields insights into the distribution of risk for within and across worksheet entries, e.g. the number of entries in which human failure causes appear for each severity level and each risk level, or the number of scenarios in which SIS safeguards appear and the risk profile for these safeguards.

Example Analytic:

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