Cascade #9 – You don’t need to invent your Architecture from scratch.
The good news is that you do not need to invent an IT Architecture method for your company. Many authors and vendors have methods available already. When starting out, I recommend investigating/adopting the architecture that started it all, the “Zachman Framework” as developed and enhanced by John Zachman.



 Levels of Abstraction / Viewpoints: ( )



   He devised the illustrated matrix framework that cross-references core information concepts against the levels of abstraction that are used by different audiences and participants in delivery of Information Systems.The key benefit of the framework is that it illustrates how information concepts can be transformed through the levels to produce operating components of the needed Information Systems.


Last two points on Zachman:

  •  The cross points of the Concept columns and Abstraction rows are called “Cells”; each cell will group the methods or documents (artifacts) that describe the content of the cell. Zachman does not specify what artifacts to use, or what methodologies to use to create the artifacts. The things in each cell on the diagram are just suggestions.
  •  The Framework looks two-dimensional, but it is actually multi-dimensional when artifacts in one cell are cross-referenced to artifacts in other cells, the most obvious example is What vs. How, i.e., what function creates specific occurrences of data.


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