This part of IS0 10303 specifies the resource constructs to specify the actions or potential actions to effect a process. The integrated resource constructs within this part of IS0 10303 define the structure for specifling: relationships between processes, the effectivity of a process, the properties of a process, the resources required for the process, the properties of the resource, the representation of the process, the representation of the resource, and the relationship of the process to the product. When these integrated resource constructs are utilized in the context of an application resource or an application protocol, the integrated resource constructs can be assembled into a structure to represent a process plan.

The following are within the scope of this part of IS0 10303:

• specification of a process;
• specification of the relationships between processes;
• specification of the effectivity of a process;
• specification of the relationship between a process and a product;
• specification of the steps for a process plan to realize a product;
• specification of alternative process plan definitions;
• specification of the method for realizing a process plan;
• specification of a resource;
• process requirements of the resource;
• identification of resources used by a process;
• specification of the properties of a resource.

The following are outside the scope of this part of IS0 10303:

• definition of specific processes or specific process plans;
• process specifications for continuous processes;
• scheduling;
• process planning;
• peer-to-peer communication mechanisms, including synchronization;
• process control.