The information objects identified in Figure 2 are used to describe a Job Order. This is a subset of the ISA 95 Part 4, Edition 2 Job Order model, intended to meet a large percentage of situations where nested resource requirements and external linkages are not needed. See the ISA 95 Part 4 specification for details on the attributes and relationships.

Figure 2 – Job Order Information Model

• Job Order – The specification of a job to be executed.
• Job Order Parameter - Additional information associated with the Job Order is represented in name/value pairs and defined Job Order Parameters.
• Personnel Requirement – Information associated with the Job Order that defines additional personnel and/or person requirements.
• Equipment Requirement – Information associated with the Job Order that defines additional equipment class and/or equipment requirements.
• Physical Asset Requirement – Information associated with the Job Order that defines additional physical asset class and/or physical asset requirements.
• Material Requirement – Information associated with the Job Order that defines additional material class, material definition, material lot, and/or material sublot requirements.

See Annex C for examples of Job Orders.

Note that the data types and enumerations used in this companion specification use the ISA 95 names, with the ISA95 prefix.