Wednesday, June 1, 2011
Lawson on EA supporting the Business
Thursday, April 14, 2011
Business Transformation Management, Business Architecture and Business Requirements
Thursday, December 9, 2010
More thoughts on EA
- "EA for the sake of doing EA ...flounders aimlessly in search of respect....IT needs to start thinking more like the business and less like engineers"
- "EA practitioners should be focused far more on enabling a deeper understanding of the purpose and capabilities of the enterprises they work in – to facilitate greater clarity of reasoning about strategic options and appropriate action – rather than taking on an often obstructive and disconnected IT strategy and governance role" ...
- "... capability map as a portfolio of business components ...the next level of details need only to be captured as new programs require them."
- " ...traditional views of EA (People, Process and Technology) are too simplistic to support the diversity of business models. [Need] ...business architecture assets targeted at different levels of abstraction and produced in a contextually appropriate way to facilitate a far greater federation in decision making and implementation.]
- "... you can no longer afford to ignore the ecosystem in which the enterprise operates"
- it is "... impossible to keep a centralized view of how the enterprise works -at a cost that would justify the value of such a view. ...". However maintaining a view requires changes to methods and tooling so that view accretes as a natural by-product of other activities and does not require capture for its own sake (Cf. cadastral data capture).
Monday, November 29, 2010
Interfaces
I am often asked what the right way to record interfaces is. The answer is really that it depends what you want to know about the interfaces and that in practice you will probably want to record information at a number of levels
Let us examine another communications paradigm we are all familiar with – Bill communicating with Bob.
Should one record that:
1. Bill Communicates with Bob (remember communication may be multimodal)
2. Bill makes sounds with his mouth that Bob hears through his ears (and similar for other modes with different input and output interfaces).
3. Bill makes sounds that are communicated via a medium (e.g. air), or converted into electrical signals and transmitted via an electrical cable, to a switching mechanism etc.
There are a myriad of other strategies e.g. Bill communicates with clients (and Bob is a client); or Bob's brain interprets the sounds and hears the words and emotional content, etc. Then there are the issues associated with the semantic content of the message e.g. do we want to record that Bill is communicating about Products, Pricing or whatever
Well it really depends on what we are trying to understand – if we want to understand communications flows in a organistion, or if we are designing a phone etc. It make be useful for different purposes and audiences to record this at many levels and to be able to relate these different views together.
Unsurprisingly the same is true when one considers who to record communications between applications. The way you record them varies based on the purpose. They may be recorded in multiple ways and it is very handy to be able have a way of see how all the different levels are related. But searching in vain for a single way of recording interfaces that will serve all audiences and all purposes is unlikely to be productive.