Usability Evaluation and Redesign of Teletext Service

Teletext Usability Evaluation Yogesh  Ravi  Zul

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is Teletext? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How Teletext Works ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Teletext: Past and Present ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Teletext: Useless or Unusable? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Malaysia USA Spain India

Objectives ,[object Object],[object Object],[object Object]

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Goal Directed Design and Personas ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Steven Tang Soccer Lover

Usability Goal Setting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Heuristic Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The 10 Heuristics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

User Testing ,[object Object],1. Get the best and cheapest advertising deal for showcasing your products 2. Know the best sections on Teletext to place your ads 3. You want to study various advertising plans, compare them and choose the one that gives you most exposure within a budget of $100-$200 per month 4. You do not have a credit card and want to know available payment modes 5. Since you do not have any sources for doing artwork of the advertisement, you want to know if you can send your company logo and mobile plans to Teletext office and whether they can handle the remaining artwork. 6. Find out how you can track the response to your ad Scenario: Placing an Ad on Teletext You are a businessman who runs a hand phone shop. You have heard that a lot of teens use Teletext to find latest offers on ring tones, screensavers as well as for mobile based games. Description of User 1. Occasional user of new share IPOs, flight information, etc. 2. Frequent user of Lottery results, sports news, etc. Teletext proficiency Low-medium. May not understand uncommon English words Language proficiency You want to try out this inexpensive advertising platform to place your new mobile plans and ring-tone offers on Teletext. Motivations Business User

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1. Visibility of system status ,[object Object],[object Object]

2. Match Between System and the Real World ,[object Object]

3. User control and freedom ,[object Object],Remember Steven is in a hurry !

3. User control and freedom ,[object Object],? ?

4. Consistency and Standards ,[object Object]

5. Error Prevention ,[object Object],[object Object]

6. Recognition Rather than Recall ,[object Object]

7. Flexibility and Efficiency of Use ,[object Object]

8. Aesthetic and Minimalist Design ,[object Object],[object Object]

9. Help Users Recognize, Diagnose, and Recover from Errors ,[object Object]

10. Help and Documentation ,[object Object]

1. System model vs. Mental model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2. Wrong Visual Mapping ,[object Object],[object Object]

3. Negative transfer of knowledge ,[object Object]

4. Ambiguity causing delay and errors ,[object Object],Find SMRT !

5. Subjective Satisfaction and Credibility ,[object Object],[object Object],[object Object],“ I don’t think I can trust this info ” !

Short term and Long term ,[object Object],[object Object],[object Object],[object Object]

1. Color Enhancement ,[object Object]

2. Standardized Bottom Bar Placeholders

3. Audio Feedback and Loading Bar

4. Visual Feedback to Orient Users

5. Home Page Redesign ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

6. Alerts ,[object Object],[object Object],Full Results Alert: 4 D RESULTS May 15 2005 Close

Conclusion ,[object Object],[object Object],[object Object]

Welcome the new era of Teletext ! ,[object Object]

Usability Evaluation and Redesign of Teletext Service

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