UML 主要的几种图
Use Case Diagrams
Use case diagrams model the functionality of system using actors and use cases.
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Class Diagrams
Class diagrams are the backbone of
almost every object oriented method, including UML. They describe the
static structure of a system.
Object Diagrams
Object diagrams describe the
static structure of a system at a particular time. They can be used to
test class diagrams for accuracy.
Package Diagrams
Package
diagrams are a subset of class diagrams, but developers sometimes treat
them as a separate technique. Package diagrams organize elements of a
system into related groups to minimize dependencies between packages.
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Activity Diagrams
Activity diagrams
illustrate the dynamic nature of a system by modeling the flow of
control from activity to activity. An activity represents an operation
on some class in the system that results in a change in the state of the
system. Typically, activity diagrams are used to model workflow or
business processes and internal operation.
Statechart Diagrams
Statechart diagrams describe the dynamic behavior
of a system in response to external stimuli. Statechart diagrams are
especially useful in modeling reactive objects whose states are
triggered by specific events.
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Sequence Diagrams
Sequence diagrams describe interactions among classes in terms of an exchange of messages over time.
Collaboration Diagrams
Collaboration
diagrams represent interactions between objects as a series of sequenced
messages. Collaboration diagrams describe both the static structure and
the dynamic behavior of a system.
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Component Diagrams
Component diagrams describe the organization of physical software components, including source code, run-time (binary) code, and executables.
Deployment Diagrams
Deployment diagrams depict the physical resources in a system, including nodes, components, and connections.
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The Stucture of UML just as figure below: