MIT301– Object Oriented Analysis and Design

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(FALL 2015) ASSIGNMENT

PROGRAM	MCA (Revised Fall 2012)
SEMESTER	2
SUBJECT CODE & NAME	MIT301– Object Oriented Analysis and Design
CREDIT	2
BK ID	B1405
MAX.MARKS	60

Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme.

Q1. List the advantages of object oriented software development and Explain.

Answer : Object-orientation is a method of structuring the data and logic in a computer program in a way that makes it easier for a programmer to accurately model real business entities and processes. For example in an accounts receivable program we might define a "Customer" object that has an "UpdateAccounts" method that automatically updates all the accounts linked to the customer. Then in the program's source code wherever we wish to ensure a customer's accounts are updated we can simply write a line of code that looks like this:

Q2 Explain the process of software development

Answer : Fusion

The Fusion method is a combination of different sections of different methods. It was discounted almost immediately due to its failure to describe an organised methodology for developing applications. A large amount of documentation is produced during the Fusion methodology, however the processes by which that documentation is produced, the manner in which that documentation links - or its overall cohesiveness, and the actual worth of the documentation produced is sadly lacking.

OMT

Q3 List and explain the four phases of the object modeling technique

Answer : Object Modeling Technique (OMT)

OMT (Rumbaugh et al., 1991) was developed as an approach to software development. A fundamental assumption of OMT is that object-oriented thinking represents a more natural and intuitive way for people to reason about

Q4 Explain the different states of activity diagram.

Answer : Activity diagrams are often used to model business processes. They simply and quite plainly show how things work, and so function as a good aid to discussions of aspects of the workflow with the domain experts. These are less abstract than the often used object-oriented state machine diagrams.  Activity diagrams are an essential part of the modeling process. They are used to clarify complicated use cases, illustrate control among objects, or to show the logic of an algorithm. The UML 2.0 metamodel substantially refined and improved Activity diagrams; whereas the UML 1.4 Activity diagram was a subclass of State

Q5. List and explain the basic categories of program errors.

Answer :Types of Program Errors

Program errors are also referred to as program bugs.

A C program may have one or more of four types of errors:

• Syntax errors (Compiler errors or Compile-time errors)
• Linker Errors

Q6 What are the rules for developing usability testing?

Answer : Usability testing is a technique used in user-centered interaction design to evaluate a product by testing it on users. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system. This is in contrast with usability inspection methods where experts use different methods to evaluate a user interface without involving users.  Usability testing focuses on measuring a human-made product's capacity to meet its intended purpose.

Examples of products that commonly benefit from usability testing are foods, consumer products, web sites or web applications, computer interfaces,

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