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Bt8901
summer 2016
1. Explain State charts and Activity Diagrams
with examples
Answer:
The name of the diagram itself clarifies the purpose of
the diagram and other details. It describes different states of a component in
a system. The states are specific to a component/object of a
2.
What is Booch methodology? Explain its macro and micro development processes.
Answer: The Booch
Methodology
The
Booch methodology is a widely used object-oriented method that helps you design
your system using the object paradigm. The Booch method consists of the
following diagrams:
Ø Class
diagrams
Ø Object
diagrams
3
Explain the structural things in UML.
Answer: Structural
Things
Structural
things are the nouns of UML models. These are mostly static parts of a
model, representing elements that are either conceptual or physical. In all,
there are seven kinds of structural things. They are:
Class:
A
class is a description of a set of objects that share the same attributes,
operations / methods, relationships, and semantics. A class implements one or
more interfaces. Graphically, a class is rendered as a rectangle, usually
including its name, attributes, and methods
Interface:
An
interface is a collection of operations that specify a service of a class or
component. An interface describes the externally visible behaviour of that
element. An interface might represent the complete behavior of a class or
component or only a part of that behavior. An interface defines a set of
operation specifications (i.e. their signatures) but never a set of operation implementations.
Graphically, an interface is rendered as a circle together with its name. An
interface rarely stands alone.
Collaboration:
A
collaboration defines an interaction and is a society of roles and other
elements that work together to provide some cooperative behavior that’s bigger
than the sum of all the elements. Thus, collaborations have structural as well
as behavioral dimensions. A given class might participate in several
collaborations. These collaborations therefore represent the implementation of
patterns that make up a system. Graphically, a collaboration is rendered as an
ellipse with dashed lines, usually including only its name
Use
Case: A
use case is a description of set of sequence of actions that a system performs,
which yields an observable result of value to a particular actor. A use case is
used to structure the behavioral things in a model. A use case is realized by a
collaboration.
Active
Class: An active class is a class whose objects own one or
more processes or threads and therefore can initiate control activity. An
active class is just like a class except that its objects represent elements
whose behavior is concurrent with other elements.
Component:
A
component is a physical and replaceable part of a system that conforms to and
provides the realization of a set of interfaces. In a system, you’ll encounter
different kinds of deployment components, such as COM+ components or Java
Beans, as well as components that are artifacts of the development process,
such as source code files. A component typically represents the physical
packaging of otherwise logical elements, such as classes, interfaces, and
collaborations.
Node:
A
node is a physical element that exists at run time and represents a computational
resource, generally having at least some memory and, often, processing
capability. A set of components may reside on a node and may also migrate from
node to node.
4
Discuss about Extracting Entity Classes. Draw necessary diagram.
Answer: Entity class
extraction consists of three steps that are carried out iteratively and incrementally:
Ø Functional
Modeling.
Present scenarios of all the use cases (a scenario is an instance of a use
case).
Ø Class
Modeling.
Determine the entity classes and their attributes. Then, determine the
interrelationships and interactions between the entity classes. Present this
information in the
5. Explain the Elaboration Phase and
Construction Phase of unified process.
Answer:
Elaboration phase:
The
primary goal of the Elaboration phase is to establish the
ability to build the new system given the financial constraints, schedule
constraints, and other kinds of constraints that the development
6.
Explain Synchronize-and-Stabilize Team Organization with an example.
Answer:
The systems
development life cycle (SDLC), or software development life cycle in systems
engineering, information systems and software engineering, is a process of
creating or altering
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