Every entity used in architecture work and described in the (Extended) Content Framework is rooted in the Enterprise Metamodel. This makes the Enterprise Metamodel a fundamental part of the TOGAF Standard. Since no two organizations are alike,the Enterprise Metamodel serves as a Foundation Enterprise Metamodel. This means that it must be tailored to the needs of the organization. The metamodel described in the TOGAF Framework is best viewed and used as a starting point. The Content Framework provides a categorization mechanism that can be used to structure a representation of the Enterprise Metamodel, consisting of five interrelated sections. It is not to be confused with an architecture diagram that shows domains or layers of the architecture.