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[xml-dev] Where does the term "element" come from?
- From: ken_north@compuserve.com
- To: costello@mitre.org, xml-dev@lists.xml.org
- Date: Fri, 25 Dec 2009 02:12:11 -0500
Most likely from 'data element'.
Several decades ago the predominant programming languages included
FORTRAN, COBOL, ALGOL and PL/I. Applications typically operated with an
ad hoc data store. For file-oriented input (as opposed to streams),
programming specifications typically included a record layout, showing
the fields or data elements that comprised a record. When projects were
done with programming teams, a data dictionary was used to ensure
consistency of the data elements (size, type, location in a record).
With the emergence of record management sytems (e.g. DEC RMS) and
databases, applications written in different languages could access the
same data on disk. There was a need for tools to ensure consistency of
the definition of data elements across projects and programming
languages.
Common Data Dictionary software, repository-based design, data modeling
software and other CASE tools emerged as solutions.
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