UML Weekend Crash Course™ - To Parent Directory

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Glossary
navigability
A specification of the allowed direction of communication along an association.
node
A physical object that represents a processing unit, typically computing hardware or a
person, capable of owning and performing a system function. For more information see
Session 26. See also deployment view.
object
A uniquely identifiable entity composed of information, behaviors, and relationships with
other entities. For more information see Session 1.
object activation
An object in control of a thread or process that can initiate control activity. In a Sequence
diagram, this is identified by adding an activation bar to the object lifeline. In an Object
diagram, this is signified by making the object icon bold. For more information see Session
16. See also active object.
object constraint language
A formal language used to express rules that need to be enforced on elements in a UML
diagram (for example, to define which objects may participate in an association).
object lifeline
Used in a Sequence diagram, the timeline is represented as a vertical dashed line drawn
from the owning object downward to the end of the scenario. For more information see
Session 16.
object management group
The standards group currently overseeing the modeling standards related to object-oriented
software development. For more information see Session 1.
object termination
The end of an object’s lifecycle, usually denoting object destruction. Identified by an X at
the bottom of a sequence diagram timeline for the specified object. For more information
see Session 16.
Object-Oriented Analysis and Design Task Force
The group assigned by the OMG to generate and oversee the RFP for a metamodel for object
design. For more information see Session 1.
operation
The declaration of a unit of behavior within a class. See also method and interface. For more
information see Session 9.