DCA3103 SOFTWARE ENGINEERING SEPTEMBER 2025

Description

SESSION	JULY/SEPTEMBER 2025
PROGRAM	BACHLEOR OF COMPUTER APPLICATIONS (BCA)
SEMESTER	V
COURSE CODE & NAME	DCA3103 SOFTWARE ENGINEERING

 

 

SET-I

 

 

Q1. Explain the advantages and disadvantages of various software development models. 10

Ans 1.

Advantages and Disadvantages of Various Software Development Models

Software development models provide structured approaches to planning, designing, implementing, testing, and maintaining software systems. Over the years, different models have evolved to handle different project sizes, complexities, risks, and team structures. Each model offers unique advantages but also presents limitations depending on the nature of the project.

Waterfall Model

The Waterfall model follows a linear sequence of phases: requirements, design, implementation,

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Q2. i. Describe the key guidelines for data design

1. Explain the different functions of architectural design. 5+5

Ans 2.

(i) Key Guidelines for Data Design

Data design defines how information is structured, stored, and accessed throughout the software system. Effective data design ensures consistency, accuracy, reliability, and efficient handling of input and output operations. One essential guideline is understanding the data requirements clearly before creating models. Designers must analyze what data needs to be captured, how it flows, and how it will be used across modules. Normalization rules help eliminate redundancy and ensure data integrity. Well-defined relationships between data entities should be established

 

 

Q3. Briefly describe the various approaches to software process assessment and improvement. 10   

Ans 3.

Approaches to Software Process Assessment and Improvement

Software process assessment and improvement aim to evaluate existing development practices, identify weaknesses, and enhance the overall efficiency, quality, and predictability of software projects. Organizations adopt structured frameworks to measure process maturity and implement improvements systematically.

Capability Maturity Model Integration (CMMI)

CMMI is one of the most widely used frameworks for process improvement. It defines maturity

 

 

SET-II

 

Q4 i. List the various characteristics of software testing.

1. Write a short note on
2. White Box Testing
3. Regressing Testing 5 + (2.5+2.5)

Ans 4.

Characteristics of Software Testing

Software testing is an essential activity in the software development life cycle because it ensures that the final product is reliable, accurate, and aligned with user requirements. One important characteristic of software testing is that it aims to detect defects rather than to prove that software is error-free. Testing works on the principle that the presence of defects can be revealed through systematic evaluation, but complete absence of defects cannot be guaranteed. Another characteristic is that testing must begin early in the development process. Identifying defects

 

Q5. Define Software maintenance and explicate its various tasks. 2 + 8 

Ans 5.

Software Maintenance and Its Various Tasks

Software Maintenance

Software maintenance refers to the continuous process of modifying, enhancing, correcting, and updating software after it has been delivered to the user. It ensures that the software remains functional, secure, efficient, and adaptable to new business needs, technological advancements, and user expectations. Maintenance is an essential part of the software life cycle because software often operates for many years, requiring ongoing adjustments to remain effective and

 

Q6. i. Briefly describe the Process of Agile Software Development.

1. Distinguish between traditional software engineering and modern software engineering. 5 +5

Ans 6.

Agile Software Development Process & Traditional vs Modern Software Engineering

Process of Agile Software Development

Agile software development is an iterative, flexible, and customer-centric approach that focuses on delivering small, workable parts of software at frequent intervals. The process begins with gathering high-level requirements in the form of user stories that express what users expect from the system. These stories are prioritized based on business value, and the project is divided into short, time-boxed cycles known as sprints. Each sprint typically lasts two to four weeks and begins with a planning meeting in which the team decides which user stories will be developed.

During the sprint, developers, testers, and designers collaborate closely to build and test the