Enterprise Architecture: Different Views:

Enterprise architecture


August 20, 2008  5:03 PM

TOGAF



Posted by: Anton
Enterprise architecture

Ever heard of TOGAF? TOGAF is The Open Group Architecture Forum with which architects can become a member and get certified as an enterprise architect. TOGAF subscribes to a number of EA Frameworks, but also offers an ADM - Architecture Development Method(ology). I have found the ADM a very useful...

August 20, 2008  5:02 PM

EA Components



Posted by: Anton
Enterprise architecture

The components of an EA can also be summarised as follows: - Context (basic requirements, guidelines, constraints) - Framework(s) that enable a multi-layered EA development in stages - Actual components (processes, systems, rules) - Inter-relationships (links, flows, data dictionaries,...


August 16, 2008  10:12 AM

Outputs of EA



Posted by: Anton
Enterprise architecture

What are the typical outputs of Enterprise Architecture? Views and models that describe the "current environment", based on one of the EA frameworks already discussed. This is required to enable a grasp of the gap that exists considering the desired future environment (another output of EA, also...


August 16, 2008  10:11 AM

EA Programme Roles



Posted by: Anton
Enterprise architecture

I briefly discussed before how EA teams are typically structured, but what are some of the other roles on an EA Programme? Apart from the specific domain architects, e.g. Application, Information and Security architects, other important roles to be considered are the Architecture Sponsor (could be...


August 16, 2008  10:09 AM

EA Critical Success Factors



Posted by: Anton
Enterprise architecture

What are some of the key Critical Success Factors of Enterprise Architecture? Primary CSFs: - Planning the EA programme - Developing an Infrastructure for EA (tools, frameworks, methodologies) - Documenting the EA - current and future - Standardisation of Design Patterns, Development Processes...


August 11, 2008  6:57 PM

What about SOA?



Posted by: Anton
Enterprise architecture

Is SOA the same as Enterprise Architecture? No - SOA is rather an Architecture STYLE. If BSOA is seen as the Business View of SOA, then EA = SOA + BSOA. SOA is a useful vehicle to apply re-use of solution components and govern design of components according to design patterns.


August 11, 2008  6:56 PM

What can go wrong?



Posted by: Anton
Enterprise architecture

What can go wrong with Enterprise Architecture? 1. It is too much "in the face" of Business and day-to-day operational activities (message: keep EA in the background) 2. It starts anywhere but with the Business (message: Business goals should drive it all) 3. It gets launched with a "big bang"...


August 11, 2008  6:54 PM

Goals of EA



Posted by: Anton
Enterprise architecture

What should be the goals of practising Enterprise Architecture? 1. Successful and timely Business transformation 2. Bringing models and views together by implementing universal compatibility between them (integrating everything and using a common language) 3. Going on-line, e.g. by using a...


July 30, 2008  6:22 PM

Governance Challenges



Posted by: Anton
Enterprise architecture

Architecture Governance is a challenge in larger organisations where IT is not centralised. In my experience in such an environment there are always business units within the organisation that will want their way with the technologies they deploy and the way they design their solutions....


July 30, 2008  6:13 PM

Architecture Governance



Posted by: Anton
Enterprise architecture

Once the future state vision for the organisation's IT and Business (with suitable principles) is in place, it becomes necessary for day-by-day design guidance to be given to development projects. This is required on 2 levels — guidelines to be employed by the business process designers, and in...


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