We have just seen how J.D. WARNIER addresses the logic of building computer programs. This approach, initiated in the 1960s, is in spite of what can be heard here or there, always topical.

Although the tools available to us both in terms of languages ​​and concepts themselves have evolved a lot, the logic of building programs remains the same regardless of the environment (Object, Transactional, DBMS etc.). 

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So I can not ignore the "ignorance" of our training centers and other organizations that have forgotten the very foundations of computer data organization.

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Maybe my very modest contribution that I wanted to save here (on the WEB !!) will allow some to finally ask the right questions. I remain at your disposal.

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Serge MENEUT The 1/12/2016