Introduction

In the Orthogramic Metamodel, a single domain entity—such as a capability, service, or information asset—may be associated with multiple organisation units. To ensure clarity of ownership, accountability, and usage across the organisation, each organisation unit's role in relation to a domain entity should be explicitly defined.

Relationship roles

Each link between an organisation unit and a domain entity can be classified using the following roles:

Role

Description

Owning unit

Accountable for maintaining, governing, and developing the domain entity.

Utilising unit

Makes active use of the domain entity to perform its own functions.

Providing unit

Delivers the outputs or services of the domain entity to other units.

Consuming unit

Receives or depends on the outputs or services of the domain entity.

Custodian unit

Maintains the authoritative or source record for the domain entity.

Dependent unit

Relies on the domain entity for operational or strategic execution.

Supported unit

Gains business value through a domain entity but is not directly consuming it.

These roles allow for precise modelling of interdependencies, enabling traceability, governance, and impact analysis across organisational functions.

Capability domain example

Capabilities may be shared, reused, or leveraged across the organisation. Clear designation of relationship roles supports investment planning, service level expectations, and architectural traceability.

Example:
The Workforce Planning capability is:

This distinction provides a clear view of accountability (People & Culture), operational reliance (Asset Management), and enabling support (Finance).

Service domain example

Organisation-wide services are often designed and managed centrally but delivered to or used by many business units. Role clarity enables better service design, funding alignment, and continuous improvement.

Example:
The Learning and Development Service is:

Defining these relationships clarifies responsibility for experience quality, data, and outcomes.

Information domain example

Information assets typically flow between producing and consuming units. Assigning custodial and consumer roles ensures traceability and compliance.

Example:
The Employee Records Dataset is:

This approach ensures that data stewardship is clearly defined and that consuming units know the appropriate contact points for change requests or data issues.