Assign specifications to an operation

You can assign multiple specification versions to an operation. However, you can define only one version as the preferred version. The preferred specification version is used when a process is started. All operations in a process use that same specification version. A specification version can contain multiple specifications. While creating a work order from a process, the specifications from a specification version are used to create a job specification for the jobs.

By default, the specification version marked as the preferred version is used for an operation in the process. You can change a specification version if you have the May override preferred spec. version privilege.

You must create a global specification before assigning specification to a specification version.

You can assign the following specifications to an operation:

• Entity specifications

• BOM specifications

• Item and item class specifications

For more information on specifications, see Global specifications.

You can assign an entity specification to an entity. An entity specification changes to a job specification while creating a job for that entity or for a descendant of that entity. If the same specification is assigned to both a parent and a child entity, then the specification assigned to the child entity overrides the specification assigned to a parent entity while creating a job specification.

You can assign a BOM specification to a BOM position for a BOM version of an item. BOM specification changes to job specification while creating a job that uses the specified BOM version to create the specified item.

You can assign an item or item class specification to an item that is produced or consumed during an operation. You can also assign an item to an item class. Item or item class specification changes to job specification while creating a job that produces or consumes that item or an item in that item class. If the same specification is assigned to both an item and an item class, the item overrides the item class. If the same specification is assigned to both a BOM item and an item, the BOM item overrides the item.

You can add specifications for BOM items, entities, and item classes. If an operation is inserted from a standard operation and you have defined the entity specification for the standard operation, you are able to view the entity specifications in the Processes module. You must add specifications for a BOM or item class in the Process module once the operation is associated to a process as a standard operation does not contain BOM or item class specifications.