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UML Diagrams
Zicomi Systems publishes some UML example diagrams online from the world famous UML dictionary.
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Version 2.5 Released
Zicomi Systems is delighted to announce that version 2.5 of Zicomi Mentor is released. With support for UML 2.0 and all thirteen UML diagrams
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Zicomi Systems' Director
speaks about the UML at Objects by Design - an informative interview
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Partner Programme
Zicom Systems is delighted to announce a new world wide partner programme, become a partner today.
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OMG Member
Zicom Systems is made a member of the OMG!
UML Element Description
Actor
Actor    
An actor represents a set of roles that a user plays with an entity (system, subsystem or a class). Actors can be human or other systems, subsystems or classes that represent things outside of the entity. The actor "communicates" with the entity by sending a series of messages backwards and forwards.
Actor Instance
Actor Instance    
An actor instance is a specific instance of an actor using the entity being modeled, which is most typically a system but could be a subsystem or a class. It has unique identity as well as attribute values, which determine its state at any point in time. An actor instance communicates with one or more instances of use cases sending message instances.
Association Class
Association Class    
An association class has the behavior of both an association and a class. It gives an association the ability to have attributes and operations like a class. It has two distinct parts to its structure: an association part and a class part.
Comment (Note) Attaching Line
Comment (Note) Attaching Line    
A comment attaching line is a dashed line that is used to attach a comment (note) to a model element in a diagram. The comment (note) attaching line is not a UML relationship and has no semantics beyond signifying that the contents of a comment apply to the model element it is attached to. A comment may be attached to any number of model elements or may exist in isolation and by placement in proximity to one or more model elements signify that it applies to those elements.
Deep History
Deep History    
A deep history is a kind of pseudostate that acts as a marker or placeholder. It represents the most recent active substate of the containing composite state, and the substates of that substate. It is not a state itself but a diagrammatic representation or marker for the "condition" of the composite state down to any level, at the time it was last exited.
Multiplicity
Multiplicity    
multiplicity is a property of an association end that specifies the number of instances of the classifier connected at the target end (near end) that can be associated with a single instance of the classifier at the source end (far end). It is specified in the form of a string stipulating a possible infinite number governed by a lower and upper bound.
Package Contents
Package Contents    
Package Contents can be indicated using the anchor symbol. This denotes that the packages that are attached to the non-anchor end of the relationship are contained within the anchor package. This is an alternative notation to packages being graphically contained or placed inside other packages.
Package Visibility
Package Visibility    
When the value of package is specified for the visibility property of an association end it signifies that any classifier that is contained in the same package as the association (or any nested sub package) may traverse the relationship and use the role name in expressions.
Private Visibility
Private Visibility    
When the value of private is specified for the visibility property of an association end it signifies only the classifier connected at the source (far) end may traverse the relationship and use the role name in expressions.
Protected Visibility
Protected Visibility    
When the value of protected is specified for the visibility property of an association end it signifies that the classifier at the source (far) end of the association and its descendants may traverse the relationship and use the role name in expressions.
Public Visibility
Public Visibility    
When the value of public is specified for the visibility property of an association end it signifies that other classifiers in addition to the classifier connected at the source end of the association can traverse the relationship and use the role name in expressions.
Shallow History
Shallow History    
A shallow history is a kind of pseudostate that acts as marker or placeholder in a composite state. It represents the state or condition of the modeled element at the time it was last exited. It is not a state itself but a diagrammatic representation or marker for the "condition" of the composite state down to a single level, at the time it was last exited.
Stop
Stop    
A stop is used to denote that a participant is destroyed during the lifetime represented by the diagram. The lifeline is ended indicating that the participant no longer exists; the dashed line ends in a small cross positioned at the end of the lifeline. A participant may stop itself.
Timing Ruler
Timing Ruler    
A timing ruler is a graduated device for indicating the passage of time on a timing diagram. The graduations are called ticks and are typically placed on the lower edge of the diagram frame. Time runs from left to right. The scale and time units (ticks) depend upon what the diagram represents and may be sub-second units such as milliseconds or larger time divisions such as hours, days, months or even years.
Unified Modeling Language and UML are either registered

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