Task 1 : 1. What is QoS in HCI ? Explain its Significance. (2 marks) 2. What is Collaboration? Explain the Varied situations for collaboration. ( 2 marks) 3. Explain the significance of Collaboration in E-Learning. (3 Marks) 4. Show your acquaintance with face-to-face interfaces. (3 Marks) Task 2 : Step-1: Choose any one web application /mobile application /digital product. (Eg. Souq.com, paypal.com, iPhone, Samsung etc.) (1 Mark) Step-2: Write a short description about the application/product. (3 Marks) Step-3: Analyze the usability of the interface by measuring: (6 Marks) a) Effectiveness ( in 20-25 lines) b) Efficiency (in 20-30 lines) c) Satisfaction (in 10-15 lines)