id: concept-catalog/purpose-demand
title: Purpose And Consumer Demand Concept Catalog
owner: model/purpose-demand-extension
status: candidate
version: "0.1"
concepts:
  - id: purpose
    title: Purpose
    proposed_owner: kernel/itc-core
    definition: Generic reason or use-value orientation for an actor, artifact, capability, or repo in a context.
  - id: consumer-purpose
    title: ConsumerPurpose
    proposed_owner: model/information-space
    definition: Declared purpose from a consumer of a producer repo, artifact, profile, service, or canon surface.
  - id: use-case
    title: UseCase
    proposed_owner: model/information-space
    definition: Bounded scenario in which a consumer applies a producer capability to satisfy a purpose.
  - id: demand-signal
    title: DemandSignal
    proposed_owner: model/information-space
    definition: Traceable observation indicating consumer need, use, friction, request, value, or preference.
  - id: consumer-need
    title: ConsumerNeed
    proposed_owner: model/information-space
    definition: Need expressed or inferred from a consumer purpose and demand signals.
  - id: producer-capability
    title: ProducerCapability
    proposed_owner: model/governance
    definition: Capability, profile, interface, artifact, or service the producer can intentionally provide or promise.
  - id: purpose-fit
    title: PurposeFit
    proposed_owner: model/governance
    definition: Evaluation of how well producer scope and capabilities satisfy a consumer purpose.
  - id: scope-pressure
    title: ScopePressure
    proposed_owner: model/governance
    definition: Pressure on producer scope caused by unmet, repeated, high-value, or strategically aligned consumer purposes.
  - id: evolution-request
    title: EvolutionRequest
    proposed_owner: model/task
    definition: Proposed change to producer artifacts, interfaces, profiles, standards, or scope created in response to purpose pressure.
relationships:
  - source: ConsumerPurpose
    type: anchored_in
    target: ConsumerIntent
  - source: ConsumerPurpose
    type: expresses
    target: UseCase
  - source: UseCase
    type: creates
    target: DemandSignal
  - source: DemandSignal
    type: indicates
    target: ConsumerNeed
  - source: ProducerCapability
    type: satisfies
    target: ConsumerNeed
  - source: PurposeFit
    type: evaluates
    target: ConsumerPurpose
  - source: ScopePressure
    type: arises_from
    target: PurposeFit
  - source: EvolutionRequest
    type: responds_to
    target: ScopePressure