3.1.6.9 unknown

The <unknown> element is an open extension that allows information architects to incorporate xml fragments that do not necessarily fit into an existing DITA use case. Processors should ignore this element unless otherwise instructed.

Contains

Doctype

Content model

topic, map, concept, ditabase, glossary, glossentry, glossgroup, reference, task, bookmap, classifyMap, subjectScheme, machineryTask, learningAssessment, learningBookmap, learningContent, learningMap, learningOverview, learningPlan, learningSummary

ANY

Contained by

Doctype

Content model

topic (base)

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence

map (base), classifyMap, learningMap

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, topicmeta, linktext, searchtitle, index-see, index-see-also, index-sort-as, b, u, i, tt, sup, sub, coords, typeofhazard, consequence

topic (technical content)

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

map (technical content)

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, topicmeta, linktext, searchtitle, index-see, index-see-also, index-sort-as, b, u, i, tt, sup, sub, coords, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

concept

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, conbody, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

ditabase

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, conbody, prereq, context, steps-informal, stepsection, cmd, info, tutorialinfo, stepxmp, choice, choptionhd, chdeschd, choption, chdesc, stepresult, result, postreq, refbody, refbodydiv, refsyn, proptypehd, propvaluehd, propdeschd, proptype, propvalue, propdesc, glossterm, glossdef, glossProperty, glossUsage, glossScopeNote, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

glossary, glossentry, glossgroup

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, conbody, glossterm, glossdef, glossProperty, glossUsage, glossScopeNote, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

reference

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, refbody, refbodydiv, refsyn, proptypehd, propvaluehd, propdeschd, proptype, propvalue, propdesc, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

task (strict), task (general)

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, prereq, context, steps-informal, stepsection, cmd, info, tutorialinfo, stepxmp, choice, choptionhd, chdeschd, choption, chdesc, stepresult, result, postreq, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

bookmap

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, topicmeta, linktext, searchtitle, person, organization, summary, printlocation, bookpartno, booknumber, index-see, index-see-also, index-sort-as, organizationname, otherinfo, addressdetails, locality, localityname, administrativearea, thoroughfare, emailaddress, url, b, u, i, tt, sup, sub, coords, typeofhazard, consequence, uicontrol, screen, codeph, codeblock, var, oper, delim, sep, pt, pd, fragref, repsep, msgph, msgblock, filepath, userinput, systemoutput

subjectScheme

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, topicmeta, linktext, searchtitle, b, u, i, tt, sup, sub, coords, typeofhazard, consequence

machineryTask

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, prereq, context, steps-informal, stepsection, cmd, info, tutorialinfo, stepxmp, choice, choptionhd, chdeschd, choption, chdesc, stepresult, result, postreq, reqcond, reqcontp, personnel, perscat, perskill, esttime, supequi, supply, spare, safecond, typeofhazard, consequence, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, uicontrol, screen

learningAssessment, learningOverview, learningSummary

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, lcIntro, lcObjectivesStem, lcObjective, lcAudience, lcTime, lcPrereqs, lcSummary, lcNextSteps, lcReview, lcResources, lcChallenge, lcInstruction, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, lcInteractionBase, lcQuestionBase, lcInstructornote, lcQuestion, lcOpenAnswer, lcFeedback, lcFeedbackCorrect, lcFeedbackIncorrect, lcAnswerContent, lcItem, lcMatchingItem, lcAreaCoords

learningBookmap

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, topicmeta, linktext, searchtitle, person, organization, summary, printlocation, bookpartno, booknumber, index-see, index-see-also, index-sort-as, organizationname, otherinfo, addressdetails, locality, localityname, administrativearea, thoroughfare, emailaddress, url, b, u, i, tt, sup, sub, coords, typeofhazard, consequence

learningContent

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, lcIntro, lcObjectivesStem, lcObjective, lcAudience, lcTime, lcPrereqs, lcSummary, lcNextSteps, lcReview, lcResources, lcChallenge, lcInstruction, prereq, context, steps-informal, stepsection, cmd, info, tutorialinfo, stepxmp, choice, choptionhd, chdeschd, choption, chdesc, stepresult, result, postreq, conbody, refbody, refbodydiv, refsyn, proptypehd, propvaluehd, propdeschd, proptype, propvalue, propdesc, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, lcInteractionBase, lcQuestionBase, lcInstructornote, lcQuestion, lcOpenAnswer, lcFeedback, lcFeedbackCorrect, lcFeedbackIncorrect, lcAnswerContent, lcItem, lcMatchingItem, lcAreaCoords

learningPlan

data, title, navtitle, shortdesc, desc, p, note, lq, q, sli, li, itemgroup, dthd, ddhd, dt, dd, fig, figgroup, pre, lines, ph, alt, object, stentry, draft-comment, fn, indexterm, index-base, cite, xref, entry, author, source, publisher, copyrholder, category, metadata, prodname, brand, series, platform, prognum, featnum, component, searchtitle, abstract, body, bodydiv, section, sectiondiv, example, prolog, linktext, linkinfo, lcIntro, lcObjectivesStem, lcObjective, lcAudience, lcTime, lcPrereqs, lcSummary, lcNextSteps, lcReview, lcResources, lcChallenge, lcInstruction, lcClient, lcPlanTitle, lcCIN, lcModDate, lcDelivDate, lcPlanSubject, lcPlanDescrip, lcPlanPrereqs, lcGeneralDescription, lcGoals, lcNeeds, lcValues, lcOrgConstraints, lcEdLevel, lcAge, lcBackground, lcSkills, lcKnowledge, lcMotivation, lcSpecChars, lcWorkEnvDescription, lcPlanResources, lcProcesses, lcTaskItem, lcAttitude, lcPlanObjective, lcJtaItem, lcGapItemDelta, lcLearnStrat, lcAssessment, lcDelivery, lcLMS, lcNoLMS, lcHandouts, lcClassroom, lcOJT, lcConstraints, lcW3C, lcPlayers, lcGraphics, lcViewers, lcResolution, lcFileSizeLimitations, lcDownloadTime, lcSecurity, b, u, i, tt, sup, sub, coords, index-see, index-see-also, index-sort-as, lcInteractionBase, lcQuestionBase, lcInstructornote, lcQuestion, lcOpenAnswer, lcFeedback, lcFeedbackCorrect, lcFeedbackIncorrect, lcAnswerContent, lcItem, lcMatchingItem, lcAreaCoords

Inheritance

- topic/unknown

Example

This example features a specialized <unknown> element that includes other non-DITA content. If this specialization is imported to a DTD or schema, the DTD or schema will need to handle declaring the new elements or any namespaces.

<body>
  <my-unknown class="+ topic/unknown mything/my-unknown ">
    <thing value="4"/>
    <otherthing value="16"/>
  </my-unknown>
</body>
Attributes

Name

Description

Data Type

Default Value

Required?

univ-atts attribute group (includes select-atts, id-atts, and localization-atts groups)

A set of related attributes, described in 3.4.1.3 univ-atts attribute group

     

global-atts attribute group (xtrf, xtrc)

A set of related attributes, described in 3.4.1.2 global-atts attribute group

     

class, outputclass

Common attributes described in 3.4.1.9 Other common DITA attributes

     

Previous Topic:  3.1.6.8 state

Next Topic:  3.1.7 Legacy conversion elements

Parent Topic:  3.1.6 Specialization elements

Sibling Topics:

3.1.6.1 boolean

3.1.6.2 data

3.1.6.3 data-about

3.1.6.4 foreign

3.1.6.5 index-base

3.1.6.6 itemgroup

3.1.6.7 no-topic-nesting

3.1.6.8 state