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The next sentence begins another rudimentary grammatical error - "area", is singular, "databases" is plural. The claim is also extremely over-simplified in its approach to architectural layers and styles. In today's N-tiered applications there is nearly always some layer of abstraction, however crude, between relational database tables and business objects, and a coherent approach to refactoring in either the business tier or the database tier would naturally look to that abstraction layer (be it ORM, JDBC/ODBC, or just a hard-coded translation module) to determine what's possible. One might even refactor to strengthen this translation layer first, and then refactor the target tier after looser coupling between layers has been achieved.
The rest of the paragraph exhibits similar problems. Hyphens are used to run sentences together; this is substandard form, appropriate for e-mail but not for a reference article. The interface difficulty described is commonplace, and the example solution offered just one of many approaches that could be taken. Overall I think the fourth paragraph should go, it's misleading and poorly written.
--[[User:Chriscorbell|Chriscorbell]] | |||