Accessibility testing. Software Testing: INF3121 / INF4121

Transcription

1 Accessibility testing Software Testing: INF3121 / INF4121

2 Summary: Week 11 Usability testing HCI definition, framework, and guidelines User-centric design processes Accessibility testing Context of accessibility Accessibility personas and accessible design Web-content accessibility guidelines Assistive technologies and tools

3 Part I: Close-ended questions

4 Question 1 Which of the following is the role of personas in accessibility studies? a. They provide laws, regulations, and guidelines for programmers to follow b. They give a realistic view of the people we design for c. They are the main stakeholders for any software being developed d. They test that the software has all quality certifications in place

5 Question 1: Answer Which of the following is the role of personas in accessibility studies? Personas Description of a representative (fictitious) user Give a realistic view of the people we design for Provide information about Who the users are, and their characteristics / attributes Goals, motivations, and activities of usage Help us take different users into account

6 Question 1: Answer Which of the following is the role of personas in accessibility studies? a. They provide laws, regulations, and guidelines for programmers to follow b. They give a realistic view of the people we design for c. They are the main stakeholders for any software being developed d. They test that the software has all quality certifications in place

7 Question 2 Which of the following assistive technologies is mainly used by blind users? a. Screen reader b. Split keyboard c. Communication access real-time translation d. Text configuration tools and settings

8 Question 2: Answer Which of the following assistive technologies is mainly used by blind users? Blindness Partially visually impaired or completely blind Challenges Reading / seeing content on the screen Assistive technologies Screen reader / Braille display Audio note-taker

9 Question 2: Answer Which of the following assistive technologies is mainly used by blind users? a. Screen reader b. Split keyboard c. Communication access real-time translation d. Text configuration tools and settings

10 Question 3 Web Content Accessibility Guidelines (WCAG) 2.0 covers a wide range of recommendations for making web content more accessible. Which of the following statements is not true in relation project to WCAG? title a. At the top there are four principles that provide the foundation for web accessibility b. For each guideline, testable success criteria are provided to allow WCAG 2.0 to be used c. For each guideline and success criteria there is a list of test techniques d. For each guideline 12 principles are defined

11 Question 3: Answer Which of the following statements is not true in relation to WCAG? WCAG Recommendations for making web content more accessible Four principles provide the foundation for web accessibility (POUR) Perceivable Operable Understandable Robust Guidelines (12 in total) Basic goals to make content more accessible Success criteria For each criteria, we have testable success criteria

12 Question 3: Answer Which of the following statements is not true in relation to WCAG? POUR: Perceivable Information and user interface components must be presented in perceivable ways Text alternatives Provide alternatives for any non-text content so that it can be changed by need E.g. large print, braille, speech, symbols, simpler language. Adaptable Create content that can be presented in different ways without losing information E.g. simpler layout

13 Question 3: Answer Which of the following statements is not true in relation to WCAG? POUR: Operable User interface components and navigation must be operable Keyboard accessible Make all functionality available from the keyboard Enough time Provide users with enough time to read and use content Navigable Provide ways to help users navigate, find content, and determine where they are

14 Question 3: Answer Which of the following statements is not true in relation to WCAG? POUR: Understandable Information and the operation of user interface must be understandable Readable Make text content readable and understandable Predictable Make web pages appear and operate in predictable ways Input assistance Help users avoid and correct mistakes

15 Question 3: Answer Which of the following statements is not true in relation to WCAG? POUR: Robust Content must be robust enough to be interpreted by a wide range of user agents As well as assistive technologies Compatible Maximise compatibility with current and future user agents, and assistive tech. Avoid content that relies on technologies that are not accessibility-supported Avoid deprecated features of W3C technologies

16 Question 3: Answer Web Content Accessibility Guidelines (WCAG) 2.0 covers a wide range of recommendations for making web content more accessible. Which of the following statements is not true in relation project to WCAG? title a. At the top there are four principles that provide the foundation for web accessibility b. For each guideline, testable success criteria are provided to allow WCAG 2.0 to be used c. For each guideline and success criteria there is a list of test techniques d. For each guideline 12 principles are defined

17 Question 4 What does it mean that a user interface is operable? I. All functionality is available from a keyboard II. All user interface is navigable with a keyboard III. All functionality can be operated by the same person a. I and II b. I and III c. II and III d. I, II, and III

18 Question 4: Answer What does it mean that a user interface is operable? Operability User interface components and navigation must be operable Guidelines Keyboard accessible Enough time Seizures Navigable Advisory techniques Provide keyboard shortcuts to important links and form controls Avoid use of common user-agent keyboard commands for other purposes (Crtl+Z) Limit the number of links per page, and make links visually distinct

19 Question 4: Answer What does it mean that a user interface is operable? I. All functionality is available from a keyboard II. All user interface is navigable with a keyboard III. All functionality can be operated by the same person a. I and II b. I and III c. II and III d. I, II, and III

20 Question 5 Pair the following accessibility barriers and the problems they cover: Barrier priority Critical Serious Annoying (moderate) Noisy (minor) Problems they cover Problems in use of the software that cause frustration, slow someone down and require work-arounds Minor issues that might cause someone a problem, but which mainly just damage credibility Barriers that stop someone from using the software product or some of its features successfully Frustrating use of the software, but will not stop someone from using it

21 Question 5: Answer Pair the following accessibility barriers and the problems they cover: Barrier priority Critical Serious Annoying (moderate) Noisy (minor) Problems they cover Problems in use of the software that cause frustration, slow someone down and require work-arounds Minor issues that might cause someone a problem, but which mainly just damage credibility Barriers that stop someone from using the software product or some of its features successfully Frustrating use of the software, but will not stop someone from using it

22 Question 6 We use accessibility personas because it is easier to work with them than to work with real people with accessibility issues. a. True b. False

23 Question 6: Answer We use accessibility personas because it is easier to work with them than to work with real people with accessibility issues. a. True b. False

24 Question 7 Accessible design has to comply with the following: 1. Helpful way-finding: Guide the users 2. Clear presentation: Supports meaning 3. Plain language: Easy to understand 4. All media tools: All content has to be presented in all the following formats; video, audio, text Mark each with either true or false

25 Question 7: Answer Accessible design has to comply with the following: 1. Helpful way-finding: Guide the users [TRUE] 2. Clear presentation: Supports meaning [TRUE] 3. Plain language: Easy to understand [TRUE] 4. All media tools: All content has to be presented in all the following formats; video, audio, text [FALSE] Mark each with either true or false

26 Question 8 Is the following guideline an accessibility guideline? Text alternatives: Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols, or simpler language a. True b. False

27 Question 8: Answer Is the following guideline an accessibility guideline? Text alternatives: Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols, or simpler language a. True b. False

28 Question 9 Pair the following accessibility principles with their corresponding guidelines: Principles Perceivable Guidelines Wake web pages appear and operate in predictable ways Operable Maximise the software compatibility with the current assistive technologies Understandable Robust Make all functionality available from a keyboard Provide text alternatives for any non-text content so that it can be changed into other forms people need

29 Question 9: Answer Pair the following accessibility principles with their corresponding guidelines: Principles Perceivable Guidelines Wake web pages appear and operate in predictable ways Operable Maximise the software compatibility with the current assistive technologies Understandable Robust Make all functionality available from a keyboard Provide text alternatives for any non-text content so that it can be changed into other forms people need

30 Question 10 Is hearing impairment an accessibility issue? a. True b. False

31 Question 10: Answer Is hearing impairment an accessibility issue? a. True b. No

32 Part II: Exercises and Open-ended questions

33 Exercise 1: Keyboard Accessibility Compare the keyboard accessibility of the following websites: Follow-up questions: Is one better designed than the other? Why, why not?

34 Exercise 2: Accessibility Principles Check the accessibility principles: Follow-up questions: Which ones do you see as most important? Why? Do you have objections to any of them?

35 Exercise 3: Accessibility Personas Which of the following accessibility personas do you think is most common? Non-English speaker Deaf-mute Blind Age-related macular degeneration (ARMG) Which do you think is the easiest to forget about?

36 The End Questions? uio.no Next week: Exploratory Testing!

37 References Seminar slides are based on Lecture slides Black, R., van Veenendal, E., Graham, D. (2012). Foundations of Software Testing: ISTQB Certification 3E. Cengage Learning. IEEE 829: Standard for Software and System Documentation