...
Landscape - who provides the underlying foundations for infrastructure, identities, their governance and audit logging, conditional access etc.
Infrastructure (sometimes called resources) - who provides the infrastructure itself, virtual machines, database servers and the sorts.
Workload (Configurations) - who provides the necessary workloads or their configurations that are needed to run
successfully.- , the product itself - it is always Unique who provides that
A small exception to this is the SDK/API Documentation Software Development Kit (SDK) where clients can extend for their logic.
...