3. An UML diagram classification:
Static
Use case diagram, Class diagram
Dynamic
State diagram, Activity diagram, Sequence diagram, Collaboration
diagram
Implementation
Component diagram, Deployment diagram
UML components diagrams are
Implementation diagrams: describe the different elements required for
implementing a system.
4. A component diagram, also known as a UML component diagram,
describes the organization and wiring of the physical components in a
system.
Component diagrams are often drawn to help model implementation
details and double-check that every aspect of the system's required
functions is covered by planned development.
The purpose of a component diagram is to show the relationship between
different components in a system
5.
6. Component diagrams are used to visualize the static implementation view
of a system. Component diagrams are special type of UML diagrams used
for different purposes. These diagrams show the physical components of a
system.
Component diagrams are very important from implementation
perspective.
Component diagrams can be used to −
Model the components of a system.
Model the database schema.
Model the executables of an application.
Model the system's source code.
7. A high-level, abstracted view of a component in UML can be modelled as:
A rectangle with the component's name
A rectangle with the component icon
A rectangle with the stereotype text and/or icon
8. Component stereotype provides visual cues about roles played by
component in a system.
Some of the component stereotype are as follows:
9. Component:
A component is a logical unit block of the system, a slightly
higher abstraction than classes. It is represented as a rectangle with a
smaller rectangle in the upper right corner with tabs.
Interface:
An interface (small circle or semi-circle on a stick) describes a
group of operations used (required) or created (provided) by components. A
full circle represents an interface created by the component. A semi-circle
represents a required interface, like a person's input.
10. Dependencies:
Shows that one part of your system depends on another.
Dependencies are represented by dashed lines linking one component (or
element) to another.
Port:
Symbolized with a small square, Specifies a distinct interaction point
Between that component and its environment
Between that component and its internal parts
11. The subsystem classifier is a specialized version of a component classifier.
Because of this, the subsystem notation element inherits all the same rules as
the component notation element.
The only difference is that a subsystem notation element has the keyword of
subsystem instead of component.
12. Two kinds of connectors:
Delegation
Assembly
ASSEMBLY CONNECTOR:
A connector between 2 components defines
that one component provides the services that another component requires.
When an assembly connector connects simple ports (ports that provide or
require a single interface), it may be notated by a "ball-and-socket"
connection.
13. Assembly:
The semantics for an assembly connector :
Are that signals travel along an instance of a connector originating in a
required port and delivered to a provided port.
An assembly connector is a connector between two or more ports on parts that
defines that one or more parts provide the services that other parts use.
14. DELEGATION:
Links the external contract of a component to the internal
realization. Delegate connector wires the internal workings of the system to the
outside world.
A Delegate connector defines the internal assembly of a component's external
Ports and Interfaces, on a Component diagram.
A port may delegate to a set of ports on subordinate components.
Is used to model the hierarchical decomposition.
Message and signal flow will occur between the connected ports.
15. It represents the forwarding of events (operation requests and events): a signal
that arrives at a port that has a delegation connector to one or more ports on parts
will be passed on to those targets for handling.
Delegation connector from the delegating port to the simple port of Search Engine.
