L
last
The term last refers to an OCL operation that returns the last element in a given Sequence.layer
Within the Unified Process, a layer is a set of subsystems that share the same degree of generality and interface volatility.Within a layered architecture, the lower layers tend to be general to several applications, and thus must have relatively stable interfaces, while higher layers tend to be more application-specific and may have less stable interfaces as a result.
leaf
A leaf is a generalizable element that has no children in a given generalization hierarchy.A let expression is an OCL expression that allows one to define an attribute or operation that can be used within one or more constraints.
library
A library is a stereotype attached to an artifact to signify a file that contains a static or dynamic object librarylife-cycle architecture
Within the Unified Process, the term life-cycle architecture refers to the major milestone that concludes the Elaboration phase.life-cycle objectives
Within the Unified Process, the term life-cycle objectives refers to the major milestone that concludes the Inception phase.lifeline
A lifeline is a named element that represents the participation of a given connectable element in a particular interaction.
link
A link is an instance of an association that represents a connection among two or more objects.A link action is an action that involves a specified link or link object.
There are two kinds of link actions: read link actions and write link actions.
link end
A link end is an instance of an association end.The term link end creation data refers to a link end data entity that identifies one end of a link that will be created by a create link action or a create link object action.
link end creation data
link end data
A link end data entity is a specification of a connection among an input pin, an association end, and the possible values of a qualifier attached to the association end. A link end creation data entity is a special kind of link end data entity.
A link object is a link that has a set of attribute values.
A link object is basically an instance of an association class.
list
A list is an ordered collection, of variable length, of model elements owned by, and nested within, another model element.literal Boolean
literal specification
A literal specification is a specification of a literal constant. There are five kinds of literal specifications:
![]() | literal Boolean |
![]() | literal integer |
![]() | literal null |
![]() | literal string |
![]() | literal unlimited natural |
local postcondition
A local postcondition is a constraint that must hold true after a given action execution completes.
local precondition
A local precondition is a
location reference
A location reference is a position within a behavioral sequence, such as a use case or a state machine, at which an extended use case appears.
loop node
A loop node is a structured activity node that represents a loop with setup, test, and body sections. The setup section is executed once on entry to the loop; the test and body sections are executed repeatedly until the test produces False.