Subject: Re: [xsl] Re: Re: Re: Re: Re: Re: order of UNIONs From: Jeni Tennison <jeni@xxxxxxxxxxxxxxxx> Date: Fri, 16 Nov 2001 19:31:22 +0000 |
Hi Dimitre, >> My feeling is that while the former treatment of simple value lists >> is theoretically purer, more generic and more extensible, for the >> 'normal' users of XSLT, the latter is more intuitive. > > C'mon Jeni, > > Since when are we a psychology group? We might not be a psychology group, but I'm a psychologist by training (feel like I'm admitting to being an alcoholic!). From that background, I know that you get a better design in the long run if you recognise both the advantages and disadvantages of different design options, weight them, and choose the option that gives the most advantages and least disadvantages. If you follow that process, you soon find that most disagreements over design can either be reconciled algorithmically or come down to disagreements over (a) the assignment of a particular advantage of disadvantage to a particular option or (b) the importance of different criteria in relation to each other. Unfortunately, these are the hardest things to resolve. The only way to conclusively prove whether something is more intuitive than something else is to conduct a good set of experiments (though a few examples where it's obviously not the case would be equally effective). My view that usability is more important than theoretical purity is fairly deeply held, as is yours in the opposite direction, I would imagine. So we're left with guess-work and opinions, which make for a lot of sound and fury for not much by way of conclusions. Which I guess is why we haven't seen a XSLT/XPath WD yet :) Cheers, Jeni --- Jeni Tennison http://www.jenitennison.com/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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