Business people have every right to be skeptical of EA! If you review your article it looks like EA is all about technology, it is NOT! Enterprise Architecture is about the business, WHAT are the business subject areas and WHO is accountable and responsible for the business subject areas and their usage, WHERE are those subject used or transformed in the business and WHEN do they all have to come together to MET the business objective.
You may notice the I have used the 5 interrogatives from the Zachmann Architectural framework, there are many good implementation of the framework, for public sectors organization the Canadian Governments GSRM (Government Strategic Reference Model) is a great one, that worked at the Federal, Province (State) and municipal (city) levels.
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