Enterprise Architecture Theory Lecture Dirk Dussart, Ph.D. (Managing Partner VITMC)

(Enterprise) Architecture? As a discipline started 21 years ago with John A. Zachman’s “ A Framework for Information Systems Architecture” (IBM Systems Journal, vol. 26, no. 3, 1987) Concise definition from MIT Center for Information Systems Research (Weill et al): “ The organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of the firm’s operating model” |

As a discipline started 21 years ago with John A. Zachman’s “ A Framework for Information Systems Architecture” (IBM Systems Journal, vol. 26, no. 3, 1987)

Concise definition from MIT Center for Information Systems Research (Weill et al):

“ The organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of the firm’s operating model”

EA Drivers | 1987 1996 2008

Different EA Frameworks Leading Frameworks Zachman Framework for Enterprise Architecture – mainly a taxonomy The Open Group Architectural Framework (TOGAF) – mainly an architectural process The Federal Enterprise Architecture Framework – proscriptive methodology The Gartner Methology – architectural practice |

Leading Frameworks

Zachman Framework for Enterprise Architecture – mainly a taxonomy

The Open Group Architectural Framework (TOGAF) – mainly an architectural process

The Federal Enterprise Architecture Framework – proscriptive methodology

The Gartner Methology – architectural practice

Zachman Framework – a taxonomy in action | “ A logical structure for classifying and organizing the descriptive representations of an enterprise that are significant to the management of the enterprise as well as to the development of the enterprise’s systems” - Zachman

The Open Group Architectural Framework (TOGAF) | Enterprise architecture : Business Architecture Application Architecture Data Architecture Technical Architecture Enterprise continuum: Foundation Architecture Common System Architecture Industry Architecture Organization Architecture Architecture Development Methodology

Enterprise architecture :

Business Architecture

Application Architecture

Data Architecture

Technical Architecture

Enterprise continuum:

Foundation Architecture

Common System Architecture

Industry Architecture

Organization Architecture

Architecture Development Methodology

FederalEnterprise Architecture Framework | “ A common language and framework to describe and analyze IT investments, enhance collaboration and ultimately transform the Federal government into a citizen-centered, results- oriented, and market-based organization as set forth in the President's Management Agenda” -FEAPMO

Enterprise Architecture Governance |