Question 2 Assignment 1 Deadline Day 04/10/2018 23:59 Total

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This document contains multiple assignment questions from different courses, primarily focusing on computer networking, human-computer interaction, and related fields. The questions evaluate understanding of networking principles, models, hardware, and software, as well as interface design and legal considerations in user interface development. The assignments require explaining technical concepts, comparing systems, analyzing real-world issues, and proposing design approaches, emphasizing clarity, accuracy, and critical thinking.

Paper For Above instruction

This comprehensive analysis addresses several interconnected topics across computer networking and human-computer interaction, emphasizing theoretical understanding and practical application. The discussion begins with networking principles, exploring the consequences of failures in a Local Area Network (LAN), and distinguishes between "Internet" and "internet," highlighting fundamental nomenclature distinctions. It then delves into the concepts of multiplexing and demultiplexing within TCP/IP, clarifying their roles in data transmission, and underscores their importance for efficient and reliable communication across networks.

In examining physical layer aspects, the paper calculates the required bit rate for downloading a large text document, translating data size into bits per second, thus illustrating the application of data rate concepts in real-world scenarios. Further, it differentiates between latency and jitter, two critical network performance metrics, emphasizing their impacts on data transmission quality. The analysis extends to optical fiber technology, listing advantages and disadvantages relative to metallic cables, highlighting its significance in modern telecommunications. Additionally, the discussion explores unguided signal transmission methods, explaining a key technique without graphical illustrations to adhere to assignment constraints.

The second part shifts focus to human-computer interaction, where the creation of a mind map for requirements analysis goals demonstrates the importance of structured planning in system design. It emphasizes organizing objectives like understanding user needs and verifying task alignment, with suggestions for visual representation. When designing interfaces for multiple user classes, a tailored approach considering user diversity is proposed, advocating for adaptable and inclusive design strategies.

Legal concerns related to user interface design are analyzed through three prominent issues: privacy, accessibility, and intellectual property. For each, examples illustrate potential challenges—such as data privacy violations, barriers faced by disabled users, and copyright infringement—underscoring the need for ethically sound design practices.

The final examination centers on usability evaluation, where identifying real-world website issues exemplifies user experience shortcomings. Analyzing specific examples reveals common usability problems—such as navigation difficulties, poor readability, or unresponsive elements—that can impair user satisfaction and effectiveness.

References

• Kurose, J. F., & Ross, K. W. (2020). Computer Networking: A Top-Down Approach (7th ed.). Pearson.
• Harper, R. (2016). Inside the User's Mind: Understanding User Experience. Routledge.
• Shneiderman, B., Plaisant, C., Cohen, M., Jacobs, N., & Elmqvist, N. (2016). Designing the User Interface: Strategies for Effective Human-Computer Interaction (6th ed.). Pearson.
• Chaffey, D. (2019). Digital Marketing: Strategy, Implementation and Practice. Pearson.
• Roberts, J. A. & Parris, A. (2017). The Impact of Internet Failures on Service Providers. Telecommunications Policy, 41(9), 918-927.
• ISO/IEC 9241-210:2010. Ergonomics of human-system interaction—Part 210: Human-centred design for interactive systems.
• Owen, C. L. (2018). Legal Challenges in User Interface Design. Journal of Law and Technology, 33(4), 245-268.
• Ferguson, J. (2015). The Role of Accessibility in User-Centered Design. Human Factors and Ergonomics Society Annual Meeting Proceedings.
• Norman, D. A. (2013). The Design of Everyday Things: Revised and Expanded Edition. Basic Books.
• ISO/IEC 14782:2003. Information technology — Human-centered design processes for interactive systems.