Understanding equivalence in enterprise BOP structures

In addition to the standard equivalence checks, two lines are considered equivalent if one or more of the following criteria match. (Some of the criteria may not match, but the lines are still considered to be equivalent.)

• Origin link equivalence for enterprise BOP structures A process, operation, or partition in one enterprise BOP structure is considered equivalent to its counterpart in another enterprise BOP structure by origin link if the source BOP's process, operation, or partition was used as a template for creation of the target BOP's process, operation, or partition. This occurs if the generic BOP was used as a template for creating a new product BOP or if the process or operation was allocated from a product BOP to a plant BOP. A process, operation, or partition in a product BOP is considered equivalent to a process, operation, or partition in another product BOP by origin link if both product BOPs are created from the same generic BOP. It is not necessary for the product BOPs to be created directly from the generic BOP because origin links are carried over each time a product BOP is cloned. The same holds true when cloning a plant BOP from an existing plant BOP. Allocated processes or operations remain linked to the original product BOP. The allocation process clones the structure, but the origin links remain the same. This criterion is always checked when comparing any combination of enterprise BOP structures.

• Process logical designator equivalence for enterprise BOP structures A process, operation, or partition in a generic BOP or product BOP is considered equivalent to a process, operation, or partition in another generic BOP or product BOP by process logical designator if both lines have the same process logical designator property values. Two process logical designators are considered equivalent if all fields in the logical designator form match. This criterion is optional. It can be useful when comparing two structures of the same type that do not necessarily have the same origin (for example, plant BOP to plant BOP).

• Process ID equivalence A process, operation, or partition in an enterprise BOP structure is considered equivalent to the same process, operation, or partition in another configuration of the same structure. This criterion is checked when comparing two configurations of the same structure.

Related Topics

• Setting up the accountability check