On Sep 10, 2013, at 4:22 AM, David Eddy wrote: (01)
> John -
>
> On Sep 10, 2013, at 2:28 AM, John F Sowa wrote:
>
>> The most widely used languages are the ones that actually do something
>> useful -- especially ones that somebody is willing to pay somebody else
>> to do something useful with.
>
> Totally true.
>
> Obviously there's a very long tail in this equation.
>
> The lack of management oversight over the years also means all sorts of weird
>stuff has found its way into the production stack.
>
>
> My crude rule-of-thumb for an IBM mainframe production application would have
>a minimum of 6 languages in a single application:
>
> Languages used in the last application I had my hands on:
>
> - COBOL
> - Assembler
> - CICS
> - JCL
> - IMS (how many sub languages in & around a 40 year-old IMS application?)
> - ETC (an HTML-like document composition language from Applied Data Research)
> - ??? report writer.
>
>
> How many languages are there in a SW application? RDF, OWL, SPARQL, ??? (02)
RDF is a family of languages, often very dissimilar at the surface level, such
as N-triples and RDF/XML. These days, Trig is more used than either, I think.
If you include programming languages, add in JSON, Ruby, Javascript, Python.
If you count it as a language, add XML. Often one has to get involved with HTML
and XHTML and CSS, and GRDDL and/or RDFa. Many SWeb applications don't
actually use OWL. Some of them use RIF and others use Prolog. Big data often
involves dealing with Hadoop or similar architectures. (03)
Pat (04)
>
> ____________________________
> David Eddy
> Babson Park, MA
>
> deddy@xxxxxxxxxxxxx
>
>
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