The Enterprise architecture framework (FEAF) defined by the US Federal CIO Council which equips the Office of Management and Budget and Federal agencies with a common language and framework to describe and analyse investments.feaf.png

In addition to utilising layers and aspects (as the ArchiMate Framework does) the FEAF also defines levels of scope:

The framework includes these Reference models which it shares with IndEA Framework:

Source: Federal Enterprise Architecture (FEA).

Alongside the breadcrumbs for this item which shows its "ancestry" in concept space, the Child items tab lists its descendants, and the Siblings items tab the concepts that exist under the item's "parent item".