[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Include data that may be objectively generated some day?
> Since the XML documents contain enlightenment-capability data application developers figure "Hey, let's use it." So, suppose applications (today) start making decisions based on the data in the <Enlightenment-Capability> element. What will be the consequence? > > More generally, what will be the consequence of adding this element to the Book XML vocabulary? > Should be no consequence at all, unless the new <Enlightenment-Capability> element has any meaningful values. Let's not forget that defining the value-space as well as the meaning of each possible value, is an integral part of the type definition. Leaving "no value" or the "default value" (as null or string.Empty, or 0 in many programming languages) should be handled successfully with a "default action" -- most probably "ignore". -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- To avoid situations in which you might make mistakes may be the biggest mistake of all ------------------------------------ Quality means doing it right when no one is looking. ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play ------------------------------------- Facts do not cease to exist because they are ignored. ------------------------------------- I finally figured out the only reason to be alive is to enjoy it. On Mon, Nov 28, 2011 at 5:44 AM, Costello, Roger L. <costello@mitre.org> wrote: > Hi Folks, > > Is it good or bad to include, in an XML document, data that is currently not objectively generated but may be in the future? > > Please allow me to explain. > > Example: Below is information about a book. Suppose that today's applications effectively process its markup and data: > > <Book> >    <Title>_________</Title> >    <Author>_________</Author> >    <Date>_________</Date> >    <ISBN>_________</ISBN> >    <Publisher>_________</Publisher> > </Book> > > Now, consider the problem of determining how "enlightening" a book is. Assume that there are no objective rules for determining the enlightenment-capability of a book. Manual determination of the enlightenment-capability of a book is subjective and yields mixed results. Thus, automating the determination of the enlightenment-capability of a book is problematic. > > Nonetheless, the developers of the Book XML vocabulary decide that someday it may be possible to objectively measure the enlightenment-capability of a book and applications will make decisions based on enlightenment-capability data. So they decide (today) to require that each book contain an <Enlightenment-Capability> element: > > <Book> >    <Enlightenment-Capability>__________</Enlightenment-Capability> >    <Title>_________</Title> >    <Author>_________</Author> >    <Date>_________</Date> >    <ISBN>_________</ISBN> >    <Publisher>_________</Publisher> > </Book> > > Since the XML documents contain enlightenment-capability data application developers figure "Hey, let's use it."  So, suppose applications (today) start making decisions based on the data in the  <Enlightenment-Capability> element. What will be the consequence? > > More generally, what will be the consequence of adding this element to the Book XML vocabulary? > > /Roger > > _______________________________________________________________________ > > XML-DEV is a publicly archived, unmoderated list hosted by OASIS > to support XML implementation and development. To minimize > spam in the archives, you must subscribe before posting. > > [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/ > Or unsubscribe: xml-dev-unsubscribe@lists.xml.org > subscribe: xml-dev-subscribe@lists.xml.org > List archive: http://lists.xml.org/archives/xml-dev/ > List Guidelines: http://www.oasis-open.org/maillists/guidelines.php > >
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