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What is UML?
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UML is Unified Modeling
Language. It is a graphical language for
visualizing specifying constructing and documenting the artifacts of
the system. It allows you to create a blue print of all the aspects of
the system, before actually physically implementing the system.
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What
is modeling?
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What are the advantages of
creating a model? Modeling is a proven and well-accepted engineering
technique which helps build a model. Model is a simplification of
reality; it is a blueprint of the actual system that needs to be built.
Model helps to visualize the system. Model helps to specify the
structural and behavior of the system. Model helps make templates for
constructing the system. Model helps document the system.
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What
are the different views that are considered when building an
object-oriented software system?
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Normally there are 5 views.
Use Case view - This view exposes the requirements of a system.
Design View - Capturing the vocabulary.
Process View - modeling the distribution of the systems processes and
threads.
Implementation view - addressing the physical implementation of the
system.
Deployment view - focus on the modeling the components required for
deploying the system.
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What
are diagrams?
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Diagrams are graphical
representation of a set of elements most often shown made of things and
associations.
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| What
are the major three
types of modeling used? |
Major three types of modeling
are structural, behavioral, and architectural.
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Mention
the different kinds of modeling diagrams used?
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Modeling diagrams that are
commonly used are, there are 9 of them.
Use case diagram, Class Diagram, Object Diagram, Sequence Diagram,
statechart Diagram, Collaboration Diagram, Activity Diagram, Component
diagram, Deployment Diagram.
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What
is Architecture?
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Architecture is not only taking
care of the structural and behavioral aspect of a software system but
also taking into account the software usage, functionality,
performance, reuse, economic and technology constraints.
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What
is SDLC?
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SDLC is Software Development
Life Cycle. SDLC of a system included processes that are Use case
driven, Architecture centric and Iterative and Incremental. This Life
cycle is divided into phases. Phase is a time span between two
milestones. The milestones are Inception, Elaboration, Construction,
and Transition. Process Workflows that evolve through these phase are
Business Modeling, Requirement gathering, Analysis and Design,
Implementation, Testing, Deployment. Supporting Workflows are
Configuration and change management, Project management.
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What
are Relationships?
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There are different kinds of
relationships: Dependencies, Generalization, and Association.
Dependencies are relations ships between two entities that that a
change in specification of one thing may affect another thing. Most
commonly it is used to show that one class uses another class as an
argument in the signature of the operation. Generalization is
relationships specified in the class subclass scenario, it is shown
when one entity inherits from other. Associations are structural
relationships that are: a room has walls, Person works for a company.
Aggregation is a type of association where there is a has a relation
ship, That is a room has walls, if there are two classes room and walls
then the relation ship is called a association and further defined as
an aggregation.
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How
are the diagrams divided?
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The nine diagrams are divided
into static diagrams and dynamic diagrams.
Static Diagrams (Also called Structural Diagram): Class diagram, Object
diagram, Component Diagram, Deployment diagram.
Dynamic Diagrams (Also called Behavioral Diagrams): Use Case Diagram,
Sequence Diagram, Collaboration Diagram, Activity diagram, Statechart
diagram.
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What
are Messages?
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A message is the specification
of a communication, when a message is passed that results in action
that is in turn an executable statement.
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What
is a Use Case?
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A use case specifies the
behavior of a system or a part of a system, Use cases are used to
capture the behavior that need to be developed. It involves the
interaction of actors and the system
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