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Re: [xml-dev] RE: Make implicit structures explicit

If the number or range of steps is large  or convoluted and their order or selection is really important, promote that order to an element.

    <transition step="s1"   condition="is-controlled()"/>
    <transition step="s3"/>
    <transition step="s5"/>
<steps xml:lang="en">
    <transition id="s3">Enter glide slope</transition>
    <transition id="s2">Hide the whiskey</transition>
    <transition id="s5">Correct for wind conditions</transition>
    <transition id="s4">Wake the pilot</transition>
    <transition id="s1">Contact control tower</transition>

Contrary (to some extent) to what Frank said, every document type does embodies a theory about its use-case: the more complex the use case, the more likely that extra layers of clearly labelled indirection may be appropriate.


On 10/04/2014 9:46 PM, "Costello, Roger L." <costello@mitre.org> wrote:
Hi Folks,

Thanks again for the excellent responses.

Recall that I advocated for adding an attribute that indicates the order in which a list of elements are to be evaluated, e.g.,

    <transition step="2">Enter glide slope</transition>
    <transition step="3">Correct for wind conditions</transition>
    <transition step="1">Contact control tower</transition>

The argument that dissuaded me most powerfully was this simple message from a colleague:

        What is the benefit of adding @step (a
        sequence number)? We are not using
        key punch cards, so we will not drop it.



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