An RBI Analysis is a combination of linked RBI Analysis records and their successor records. These records contain risk information about the RBI Component for which the analysis was created. There are two kinds of RBI Analyses: RBI 581 and RBI 580.
The details of an RBI 580 analysis are stored in an RBI Criticality Analysis record. It is based on the API 580 specification for Risk Based Inspection requirements and methodologies, and is the type of analysis provided in baseline RBI.
The details of an RBI 581 analysis are stored in an RBI 581 Risk Analysis. It is based on the API 581 specification, and is provided by the RBI 581 module.
Depending on the requirements of the organization, generally you will use one of the two types of analyses, but not both.
Note: Unless otherwise specified, RBI Analysis procedures are the same for both RBI 581 and RBI 580 analyses. Generally, RBI 581 Risk Analysis and RBI Criticality Analysis records will be referred to collectively as RBI Analyses.
Main RBI Analysis: An RBI Analysis that represents current information about the RBI Component and the operating environment. You can use the information in a main RBI Analysis as the starting point for a child What If Analysis.
What-If Analysis: A child analysis of a main RBI Analysis. What If Analyses allow you to calculate the risk associated with an RBI Component under hypothetical circumstances or at some future date. For example, you might want to see what the risk would be if you changed the operating pressure or what the risk could be in a few years.
Note: While the RBI Analysis is linked to child What-If Analyses (through the Has RBI Analysis family), those child RBI Analysis records are not considered part of the main RBI Analysis. Instead, they are considered part of their own RBI Analysis.
The following example shows the records that you would see after creating a What-If Analysis from a main RBI Analysis. Yellow boxes represent records in the main RBI Analysis, and orange boxes represent records in the What-If Analysis. These two root RBI Analysis records are linked to each other.
