https://training-course-material.com/index.php?action=history&feed=atom&title=OCUP_Miscellaneous_basic_notionsOCUP Miscellaneous basic notions - Revision history2026-04-19T15:04:54ZRevision history for this page on the wikiMediaWiki 1.45.1https://training-course-material.com/index.php?title=OCUP_Miscellaneous_basic_notions&diff=12591&oldid=prevFilip Stachecki: /* Data type⌘ */2013-10-02T18:53:03Z<p><span class="autocomment">Data type⌘</span></p>
<p><b>New page</b></p><div>[[Category:Private]]<br />
[[Category:OCUP]]<br />
==Notation Basics⌘==<br />
===Diagram frame⌘===<br />
[[File:DiagramFrame.png]][[File:DiagramFrameExample.png]]<br />
*Consist of a rectangle containing a header<br />
* The header contains the '''diagram type''' (optional), '''name''' and '''parameter''' (optional)<br />
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===Data type⌘===<br />
[[File:DataType.png|200px]]<br />
[[File:DataTypeExample.png]]<br />
<br />
A data type is a type whose instances are identified only by their value - two instances with the same value are indistinguishable.<br />
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A DataType may contain attributes to support the modeling of structured data types.<br />
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====PrimitiveType⌘====<br />
[[File:primitive.png]]<br />
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A primitive type defines a predefined data type, without any relevant substructure.<br />
<br />
Four instances of primitive type:<br />
*'''Boolean''' (true, false)<br />
*'''Integer''' (..., -1, 0, 1, ...) symbol for infinity - *<br />
*'''UnlimitedNatural''' (0, 1, 2, ...)<br />
*'''String'''<br />
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====Enumeration⌘====<br />
[[File:Enumeration.png]]<br />
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An enumeration is a data type whose values are enumerated in the model as enumeration literals.<br />
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===Stereotype⌘===<br />
[[File:stereotype.png]]<br />
*Formal extensions to existing model elements<br />
*They do '''not''' introduce new elements<br />
*They add semantics to existing model elements<br />
*Elements can have multiple stereotypes<br />
*Stereotype name goes above or before element name enclosed in «»<br />
** special character not a pair of < or ><br />
*Graphical symbols can be used to replace «»<br />
* List of standard UML stereotypes: UML 2 Spec, '''Annex C: Standard Stereotypes'''<br />
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===Questions⌘===<br />
#Which data types are known in UML and what are they called?<br />
#What information is shown in a diagram header?<br />
#What is a stereotype? Does it define a new element?</div>Filip Stachecki