Enterprise Architecture or Enterprise IT Architecture

Adrian Campbell over at Inspiring Architects has what I think is a spot-on article discussing the differences between Enterprise Architecture and Enterprise IT Architecture. He focuses on the need of Business Architecture to ensure alignment to business objectives.

He starts his article with a slightly different thought around explicit and implicit architectures which could easily be another blog post. I agree that all organizations have an Enterprise Architecture. What varies over time is the type of technology used to implement the business. For example, when Sears started retailing back in the 1800s their DBMS of choice was a paper-based ledger. Now lots of whirling disks support the operation. Another variable is how much documentation is associated with an Enterprise Architecture. Are their formal specifications for the Enterprise or is it left to corporate folklore?

Nice work, Mr. Campbell

Comments:

Hi Eric, see how I tried to clarify the issue for myself and my clients. Hope you like it. Enterprise IT Architecture is what we have. We also have IT-Architecture. What we are missing is Enterprise Architecture. Why that? Well, the case of IT-Architecture needs no comment; it's a core tool of IT, obviously. Enterprise-IT-Architecture is how (many) IT-people perceive Enterprise-Architecture; erroneuosly, since it's a narrow-minded, uninformed, mostly unintentional attempt to subvert Business, doomed to failure, anyway. Enterprise-Architecture is still to come. It will be modelling volition interaction of the roles acting in the enterprise. IT-Architecture is innocient and it works well, as everyone can see. Enterprise-IT-Architectures are harmful, in that they are the ultimate source of the much deplored mis-alignment of Business and IT. Enterprise-IT-Architecture isn't the bridge between Business and IT. It's more of a bridge-head of IT on the territory of Business. I see the bridge between (veritable, volition-based) Enterprise-Architecture and IT-Architecture in the form of an isomorphism between volition-interaction (Business) and thread-interaction (IT). More about this at www.mastering-it.com > Portal 'Basics' > Menu entry 'Alignment Strategy' Thanks, Peter

Posted by Peter Brand on August 05, 2010 at 07:09 PM EDT #

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