Abstract
This paper presents an analysis of capability-related concepts in three enterprise architecture (EA) frameworks for the defense domain (DoDAF, MODAF and NAF). In this analysis, we adopt an ontological account for capabilities based on the notion of dispositions as endurants; a key aspect of this account is that it includes both disposition universals and individuals, in line with Aristotle's four-category ontology. We show how these foundations - which differ from the perdurantist foundations underlying the three defense frameworks - can serve to clarify semantic issues in the frameworks' support for capabilities.