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1. UML

2. What is UML?
• Unified Modeling Language
– OMG Standard, Object Management Group.
– Depending on function through Booch,
Rumbaugh, Jacobson.
• UML is really a modeling language to express as well
as design documents, software
– Especially helpful for OO design.
– Not a process, however some have been proposed
using UML.
– Independent associated with implementation
language.

3. Why use UML
• Open Standard, Graphical with regard to
– Indicating, visualizing, constructing, as well as
documenting software systems.
• Language may be used through common initial
design in order to really specific detailed design over
the entire software development lifecycle.
• Increase understanding/communication associated
with product to customers and developers.

4. Cont..
• Support with regard to diverse application
areas.
• Support with regard to UML in several
software packages today (for example,
Rational, plugins with regard to popular IDE’s
like NetBeans, Eclipse).
• Based on experience as well as requirements
from the user community.

5. Brief History
• Inundated with methodologies in early 90’s
– Booch, Jacobson, Yourden, Rumbaugh.
• Booch, Jacobson merged methods 1994.
• Rumbaugh joined 1995.
• 1997 UML 1.1 from OMG includes input from
others, e.g. Yourden.
• UML v2.0 current version.

6. History of UML

7. Contributions to UML

8. Systems, Models and Views
• Model:
– The model is an abstraction explaining the subset of
a system.
• View:
– A view derepresents picts selected aspects of a
model.
• Notation:
– A notation is a set of graphical or even textual rules
with regard to depicting views.
• Views as well as models of a single system may overlap
one another.

9. Cont..
For Examples:
• System:
– Aircraft
• Models:
– Flight simulator, scale model
• Views:
– All blueprints, electrical wiring, fuel system

10. Cont..
System
View 1
Model 2
View 2
View 3
Model 1
Aircraft
Flightsimulator
Scale Model
Blueprints
Electrical
Wiring

11. UML Models, Views, Diagrams
• UML is a multi-diagrammatic language.
– Every diagram is a view into a model
• Diagram introduced from the aspect of a
particular stakeholder.
• Provides a partial representation of the system.
• Is actually semantically consistent along with
additional views.

12. Cont..
• Example views

13. Models, Views, Diagrams

14. Thank You
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