Systems Economics Lexicon · Supporting Concepts — The Locus Model

Resource Locus

Pillar term

The sentence structure describing a resource performing a specific function.

StatusPillar term
SectionSupporting Concepts — The Locus Model

Understanding Resource Locus

A resource locus follows a subject-verb-object structure and can describe either a final resource’s main function within a system (e.g., a car’s resource locus is “a car transports people”) or, for a constituent resource, its most important or complicated function within the larger structure it becomes part of (e.g., an engine’s resource locus is “an engine produces energy” within a car). Coding follows how the resource is actually or most commonly used by the customer rather than every possible use — a car can store people but its primary use is transportation, so its locus uses the transport verb. Although resource-locus verbs share the same 36-part notation as work-locus verbs, their meaning is defined contextually per resource: the same verb and object can appear in a work locus and a resource locus with different meanings, and even across different resources the same verb (e.g., 2.2.2) takes different meanings depending on what resource performs it. Reflecting this simpler subject-verb-object structure against the work locus’s implicit-subject structure, resource loci are also shorter than work loci in the barcode’s visual representation: three lines versus four.

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