---+!! %TOPIC%

%META:TOPICINFO{author="GregorHagedorn" date="1145953815" format="1.0" version="1.4"}%
%META:TOPICPARENT{name="StoredIdentificationKeys"}%
It seems that if A, B, and C are Statements on the children of a node, it is always logically correct to make the Question on the parent be "Does one of A, B, or C describe the object?". So the point is to provide the author with a more rational question than this? -- Main.BobMorris - 17 Nov 2003

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This was my idea, I think. In Lucid Phoenix, we found that it's nice to be able to offer people both the conventional statement type of key, and a (perhaps) more user-friendly question-answer style. A conventional statement key is the one we're all familiar with as taxonomists, e.g.

<verbatim>
1  Leaves ovate........2
1a Leaves elliptic.....3

2  Flowers blue.......etc
2a Flowers red........etc
</verbatim>

These keys are maximally efficient for printing on paper, but of course we're way past Gutenberg here. 

A question-answer style key is very nice I think for computer representations for naive users, e.g.

<verbatim>
1. What shape are the leaves?
	 a) ovate............goto 2
	 b) elliptic.........goto 3

2. What colour are the flowers?
	 ...etc
</verbatim>

These are particularly good when the "leads" e.g. ovate and elliptic are images. That's why it's nice to have both question text and lead text (or images).

-- Main.KevinThiele - 18 Nov 2003

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I agree. SDD allows to add specific image resources intended as icon (Representation/MediaObject role="iconic") or "selector images" (Representation/MediaObject role="diagnostic"). Icons can supplement text, selectors can replace text (= Representation/Label). Question/Label is of this label type, similar to character and state labels. SDD thus supports:

<pre>(no question)
  text statement (with optional icon)
  text statement (with optional icon)

(no question)
  Selector image<br />
  Selector image

Question text
  Selector image
  Selector image

Question text
  text statement (with optional icon)
  text statement (with optional icon)
</pre>

Gregor Hagedorn - 15 Dec 2003 
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(Updated for SDD 1.1)

%META:TOPICMOVED{by="GregorHagedorn" date="1145955301" from="SDD.LeadStatementVsLeadsQuestionText" to="SDD.StoredKeyStatementVsQuestion"}%