The Enterprise Architecture Market relies on established frameworks and standards.
TOGAF (The Open Group Architecture Framework): Most Widely Adopted
TOGAF is the most widely adopted EA framework (80% of Fortune 500 use TOGAF). Architecture Development Method (ADM) provides step-by-step process for developing and managing enterprise architecture. TOGAF includes architecture repository, content metamodel, capability framework, and Enterprise Continuum.
ArchiMate: Open Group Standard for EA Modeling
ArchiMate provides graphical language for EA visualization with layers (Business, Application, Technology, Physical, Strategy, Implementation & Migration), aspects (Active Structure, Behavior, Passive Structure), and relationships (structural, dependency, dynamic, grouping). ArchiMate complements TOGAF (viewpoints and visualizations).
BPMN (Business Process Model and Notation)
BPMN standardizes business process modeling with flow objects (events, activities, gateways), connecting objects (sequence flow, message flow, association), swimlanes (pools and lanes), and artifacts (data objects, groups, annotations). BPMN execution engines support BPMN 2.0 for automated processes.
UML (Unified Modeling Language)
UML is standard for software and system modeling with structure diagrams (class, component, deployment), behavior diagrams (use case, activity, state machine), and interaction diagrams (sequence, communication, timing). UML is widely used in application architecture and system design.
Zachman Framework
Zachman is EA ontology with rows (Scope, Business Model, System Model, Technology Model, Detailed Representation, Functional Enterprise) and columns (What, How, Where, Who, When, Why). Zachman is more classification schema than process framework.
EA Maturity Models and Implementation Best Practices
Capability Maturity Model Integration (CMMI) assesses EA process maturity (Levels 1-5). Gartner EA Maturity Model measures business value contribution. Implementation best practices include start with business strategy, adopt iterative approach (ADM), build EA repository incrementally, establish governance, measure business value (KPIs), and integrate with existing processes (ITSM, PPM, GRC). Common challenges include organizational resistance, data quality issues, and tool integration complexity.
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