202_2011_2_b - INF1520/202/2/2011 HUMAN-COMPUTER...

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INF1520/202/2/2011 HUMAN-COMPUTER INTERACTION 1 Tutorial letter 202 for INF1520 Solutions to Assignment 2 2011 – Semester 2 School of Computing
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Human-computer Interaction 1 2 Dear student , This tutorial letter contains the solutions to Assignment 2. By now you should have received the following tutorial letters. Please contact the Department of Despatch for tutorial matter that you have not received. The telephone number was supplied to you upon registration. INF1520 Study guide INF1520/101/3/2011 Information about this module, assignment questions for semesters 1 and 2 INF1520/201/2/2011 Solution to assignment 1 INF1520/202/2/2011 This tutorial letter Tutorial letters can be downloaded from www.osprey.unisa.ac.za , which is the official web site of the School of Computing. https://my.unisa.ac.za also offers services to students but the lecturers do not have direct control over the information provided there. Solutions to Section A The solutions to most of these multiple choice questions are quite straightforward and therefore we do not discuss them in detail. We give the page reference in Study Guide where you can find the answer. Question no. Correct option Page reference 1 4 Study guide, p. 46 2 2 Study guide, p. 47 3 4 Study guide, p. 46 4 1 Study guide, p. 42-43 5 4 Study guide, p. 48 6 5 Study guide, p.46 7 5 Study guide, p. 49 - 50
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INF1520/202/2/2011 3 Question no. Correct option Page reference 8 2 Study guide, p. 51 9 2 Study guide, p. 43-44 10 1 Study guide, p. 49 11 1 Study guide, p. 50 12 4 Study guide, p. 55 13 4 Study guide, p. 60 14 2 Study guide, p. 63 15 3 Study guide, p. 63 16 5 Study guide, p. 67 17 4 Study guide, p. 67 18 1 Study guide, p. 71 19 2 Study guide, p. 73 20 4 Study guide, p.74-75 21 5 Study guide, p. 72-76 22 1 Study guide, p. 85-88 23 2 Study guide, p. 75 24 4 Study guide p. 91 25 4 Study guide, p. 84-85 26 1 Study guide, p. 87 27 4 Study guide, p. 82 28 4 Study guide, p. 83 29 4 Study guide, p. 86 30 3 Study guide, p. 89-91
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Human-computer Interaction 1 4 Solutions to Section B Question 1 Discuss three forces that work evolutionary design. Solution: By evolutionary design we mean design that gradually becomes better, improving on existing designs, so that in the end we have the most functional, aesthetically pleasing things. Three forces that work against this process are: 1. The demands of time. New versions of an object are already in design process before the old one has been released.
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202_2011_2_b - INF1520/202/2/2011 HUMAN-COMPUTER...

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