Is375

IS375
Object-Oriented Analysis and Design

Object-Oriented
Analysis and Design

How to build a Software
Application?
1. Blue print

1. Diagrams

2. Tools

2. UML/PL

3. Construction

3. Code

4. House

4. Product
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Design and Blueprints

4

Development and Construction

5

Where is the Foundation for this House?

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Different Types of Languages
 In the Software Industry, we have three types of languages 1. Specification Language
2. Modeling Language
3. Programming Language

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Object-Oriented Analysis, Design, Development

Analysis
Investigation of problem Design

Logical solution

Construction

Code

Software: why is it hard?
 Software systems can become extremely complex during the development process
 The best methods for controlling this complexity are abstraction and encapsulation: if we use some techniques for building software that is less complex, we will get benefits in

software that is more flexible: easier to maintain and modify later
some opportunities to reuse designs and code Software Development
 Software includes all documentation necessary to:

Install
Use
Develop, and
Maintain programs
 It also includes all design and analysis documents required to write and test the code.

The potential of OO
 software that is more maintainable

 most of the changes to the software are performed by modifying the internals of well-encapsulated classes
 extending the software might be done by building derived classes  object oriented analysis and design give the maintenance programmers a roadmap to the parts of the software that need to be changed

 higher initial quality, better productivity in the development cycle

 because the “reuse” of classes can reduce the total amount of code

 shorter development interval
 lower lifecycle cost

 but

there needs to be a well-defined “software development process” in place to achieve