About this previous year paper
DESIGN & DEVELOPMENT OF APPLICATIONS (KCS075)
Time: 3 Hours | Maximum Marks: 100
SECTION A (10 × 2 = 20 Marks)
(Attempt all questions in brief)
(a) Importance of validation in the mobile application development cycle
Validation ensures that the mobile application meets user requirements and business goals. It helps identify functional errors, usability issues, and performance bottlenecks early, reducing cost and rework in later stages.
(b) Role of embedded systems in evolution of mobile applications
Advancements in embedded systems have improved processing power, battery efficiency, sensor integration, and real-time responsiveness, enabling feature-rich, high-performance mobile applications.
(c) Challenges in achieving performance, usability, and security
Balancing performance, usability, and security is difficult due to limited resources, diverse devices, network variability, and increasing security threats while maintaining a smooth user experience.
(d) Ensuring modifiability in resource-constrained environments
Mobile applications ensure modifiability through modular design, layered architecture, reusable components, and efficient memory management techniques.
(e) Challenges in integrating social media features
Challenges include data privacy concerns, API dependency, frequent platform updates, performance overhead, and handling user authentication securely.
(f) Advantages and risks of cloud integration
Advantages include scalability, data synchronization, cost efficiency, and remote access. Risks include data breaches, latency, dependency on internet connectivity, and vendor lock-in.
(g) Role of GPS in Android application development
GPS enables location-based services such as navigation, tracking, geo-fencing, ride-sharing, and location-aware recommendations in Android applications.
(h) Role of Wi-Fi in Android application development
Wi-Fi provides high-speed connectivity for data transfer, cloud access, app updates, streaming, and synchronization with lower power consumption than mobile data.
(i) Comparison between Core Data and SQLite in iOS
| Core Data | SQLite |
|---|---|
| Object-oriented | Relational database |
| High-level API | Low-level queries |
| Automatic memory handling | Manual management |
(j) Challenges of integrating calendar and address book with social media in iOS
Challenges include permission handling, data synchronization, privacy policies, API restrictions, and maintaining consistency across multiple platforms.
SECTION B (Attempt any THREE) (3 × 10 = 30 Marks)
2(a) Publishing and delivering mobile applications
The process includes application packaging, testing, app store submission, review, deployment, and updates.
Challenges include compliance with store policies, device fragmentation, security vulnerabilities, and version management.
These can be mitigated through automated testing, CI/CD pipelines, and proper documentation.
2(b) Architecting mobile applications across operating systems
Mobile architecture defines structure, components, and interactions.
Android uses activity-based architecture, while iOS follows MVC/MVVM patterns.
Design differs due to OS constraints, UI guidelines, memory management, and hardware compatibility.
2(c) Strategy for cloud-based service integration
Key factors include security, scalability, API reliability, data synchronization, latency, and cost.
REST APIs, authentication tokens, and encryption are commonly used to ensure safe integration.
2(d) Role of Android development environments
Android Studio improves productivity through code completion, debugging tools, emulators, Gradle build system, and performance profilers.
2(e) Designing an iOS location-aware application
Core Location provides GPS data, while MapKit enables map visualization.
Technical considerations include accuracy, battery optimization, background updates, permissions, and privacy compliance.
SECTION C (Attempt any ONE) (10 Marks)
3(a) Role of user feedback in requirements gathering
User feedback helps identify real user needs, usability issues, and feature priorities.
Developers can leverage feedback using surveys, usability testing, analytics, and iterative refinement to improve application design.
3(b) Requirements gathering methodologies
Methods include interviews, surveys, observation, prototyping, and user stories.
For large-scale applications, Agile methodology is recommended due to its flexibility, continuous feedback, and adaptability.