Top down implies scope - that is, looking at the business as a whole as opposed to looking at pieces or subparts of it.
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The analytical approach employed by both BSP and BISC is "top down". The implications of the words "top down" are multiple and varied, and all apply to these analysis. For instance:

— John Zachman

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "The analytical approach employed by both BSP and BISC is "top down". The implications of the words "top down" are multiple and varied, and all apply to these analysis. For instance:" in the context of "Top down implies scope - that is, looking at the business as a whole as opposed to looking at pieces or subparts of it." to mean that wisdom is timeless.

Source: Wikiquote: "John Zachman" (Quotes, Business Systems Planning and Business Information Control Study: A comparison, 1982: John Zachman (1982), "Business Systems Planning and Business Information Control Study: A comparison" in IBM Systems Journal 21 (1)) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
John Zachman

About John Zachman

John A. Zachman (born December 16, 1934) is an American business and IT consultant, early pioneer of enterprise architecture, Chief Executive Officer of Zachman International, and originator of the Zachman Framework.