The documentation states that:
The Enterprise Continuum classes of assets may influence architectures, but are not directly used during the ADM architecture development.
My understanding is ADM creates and reuses building blocks from the Architecture repository and Enterprise Continuum is just a view of the Architecture repository and hence the building blocks are inherent in the Enterprise Continuum.
So how is it that the Enterprise Continuum is not directly related to ADM architecture development?
The Architecture Continuum is a useful tool to discover commonality and eliminate unnecessary redundancy. It can exists even if you follow TOGAF or other standards. It is a View of the Architecture repository where by we store the deliverable and artifacts. So in order to start ADM cycle we don't need to have a Architecture repository in place, we can start from zero and create one.
When we apply ADM guidelines and techniques to execute ADM, we can make use of Architecture continuum reference model[s] but we are not directly depended on it at any ADM life cycle.