1. 1 ITM 734 Introduction to Human Factors in Information Systems Cindy Corritore cindycc@gmail.com This material has been developed by Georgia Tech HCI faculty, and continues to evolve. Norman: Chapters 1 - 3

2. ITM 734 (Corritore)2 What are Normans big five principles of design? M y F at C at A te V eggies

3. ITM 734 (Corritore)3 What are Normans big five principles of design? M y F at C at A te V eggies Mapping ….

4. ITM 734 (Corritore)4 What are Normans big five principles of design? M y F at C at A te V eggies Mapping …. can match what you want to do to what’s apparently possible - visible set of possible actions

5. ITM 734 (Corritore)5 What are Normans big five principles of design? M y F at C at A te V eggies Mapping example: just want to print

6. ITM 734 (Corritore)6 What are Normans big five principles of design? M y F at C at A te V eggies Mapping example: just want to print

7. ITM 734 (Corritore)7 What are Normans big five principles of design? M y F at C at A te V eggies Feedback …

8. ITM 734 (Corritore)8 What are Normans big five principles of design? M y F at C at A te V eggies Feedback …something visible happens when an action is taken - show state of the system

9. ITM 734 (Corritore)9 What are Normans big five principles of design? M y F at C at A te V eggies Feedback example: cut highlighted text in Word – what happened to it? - what is the novice solution?

10. ITM 734 (Corritore)10 What are Normans big five principles of design? M y F at C at A te V eggies Conceptual Model example - Touchgraph Touchgraph

11. ITM 734 (Corritore)11 What are Normans big five principles of design? M y F at C at A te V eggies Affordances ….

12. ITM 734 (Corritore)12 What are Normans big five principles of design? M y F at C at A te V eggies Affordances …. perceived and actual properties of a thing

13. Affordances This interface has become second nature for us ITM 734 (Corritore)13 > Clicking while the mouse cursor is on an image on the screen does something particular

14. ITM 734 (Corritore)14 What are Normans big five principles of design? M y F at C at A te V eggies Visibility …

15. ITM 734 (Corritore)15 What are Normans big five principles of design? M y F at C at A te V eggies Visibility… make relevant parts visible

16. ITM 734 (Corritore)16 What are Normans big five principles of design? M y F at C at A te V eggies Visibility… exampleexample

17. ITM 734 (Corritore)17 A fun source …. Web Pages that Suck - http://www.webpagesth atsuck.com/ http://www.webpagesth atsuck.com/

18. Other Norman say-isms What is paradox of technology? ITM 734 (Corritore)18

19. Other Norman say-isms What is paradox of technology? ITM 734 (Corritore)19 complex simple

20. Other Norman say-isms In Ch 2 Norman talks about what people do  Falsely blame themselves for errors  Want to explain things (mental model) even in face of poor model  Attribute own problems to environment, other peoples’ problems to their personality  Learned helplessness – tried, failed, won’t try again ITM 734 (Corritore)20

21. Other Norman say-isms Steps of Action ITM 734 (Corritore)21

22. Other Norman say-isms Steps of Action  Execution aspect: vague goal > intention > plan > execution  Evaluation aspect: perceive world > interpret > eval outcome > reached goal ITM 734 (Corritore)22

23. Other Norman say-isms Imprecise knowledge > precise behavior – how? (Ch 3) What is Memory in the world? What is its’ benefit? ITM 734 (Corritore)23

24. Compare: http://www.kartoo.com to http://www.touchgraph.com/TGGoogleBrow ser.html ITM 734 (Corritore)24