Exam Review Questions

1. What is Interaction Design? Interaction design defines the structure and behavior of interactive products and services. Interaction designers create compelling relationships between people and the interactive systems they use, from computers to mobile devices to appliances. The focus of the interaction design on meeting the needs and wishes of users.

2. What is Usability? What are the usability goals? Usability means easy to learn, effective to use and provide an enjoyable experience. Effective to use, Efficient to use, Safe to use, Have good utility, easy to learn, Easy to remember how to use.

3. What is Ergonomics? Ergonomics studies the actions of man in the process, the speed of development of their new technology, the cost of its energy efficiency and intensity in specific activities.

4. What is Iterative Design (iterative approach)? What is the main advantage of this model?

Iterative design can be uses in all process of creation of new product. It is the methodology of designing on cyclic processes of prototyping, testing, analyzing and perfection product or process. This process intent for improve quality and functionality of design. Advantages:

• Serious errors can be emergence in the start of this cycle.

• It enables and encourages user feedback, so as to elicit the system's real requirements.

• This process useful for team which create the product for improve the process.

• And it can be fact of status of projects for all the time.

5. What is Waterfall model? What is the main disadvantage of this model? The waterfall model is a sequential design process, often used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance.

6. What is Feed-Forward (open-loop) design approach?

Analyze >> Design >> Build

7. Describe the User-Centered Iterative Design?

• Users are diverse, while you are a single person.

• Users are (usually) not technical experts, while you are.

• Users do not know what you were thinking when you designed the system, while you do.

8. What is Think-aloud usability test? A powerful method empirically evaluating the usability of a system

9. What is Heuristics Evaluation? Heuristic evaluation is a process that designers use to estimate the usability of their designs prior to submitting them to actual user testing. In this context, the word heuristic means a general principle or "rule of thumb" that usually leads to a good answer. In this course, you will learn a small set of heuristics that will help you to make good user-interface design decisions, and also learn how to apply them in your work.

10. Describe the Visibility of System Status heuristic? Visibility of system status The system should always keep users informed about what is going on, through appropriate feedback within reasonable. For example, torrent, upload file.

11. Describe the Match Between System and the Real World heuristic? Match between system and the real world The system should speak the users' language, with words, phrases and concepts familiar to the user, rather than system-oriented terms. Follow real-world conventions, making information appear in a natural and logical order. Example, music, movies, shows, audiobooks, play, stop.

12. Describe the User Control and Freedom heuristic? User control and freedom

Users often choose system functions by mistake and will need a clearly marked "emergency exit" to leave the unwanted state without having to go through an extended dialogue. Support undo and redo. Example, logotype of website

13. Describe the Consistency and Standards heuristic? Consistency and standards Users should not have to wonder whether different words, situations, or actions mean the same thing. Follow platform conventions. Word, Excel, and PowerPoint all use the same style toolbar with the same primary menu options: Home, Insert, Page Layout… in mail send, receive…

14. Describe the Error Prevention heuristic? Error prevention

Even better than good error messages is a careful design which prevents a problem from occurring in the first place. Either eliminate error-prone conditions or check for them and present users with a confirmation option before they commit to the action. For example submit and cancel submit must be larger than cancel

15. Describe the Recognition rather Than Recall heuristic? Recognition rather than recall

Minimize the user's memory load by making objects, actions, and options visible. The user should not have to remember information from one part of the dialogue to another. Instructions for use of the system should be visible or easily retrievable whenever appropriate.

16. Describe the Flexibility and Efficiency of Use heuristic? Flexibility and efficiency of use

Accelerators -- unseen by the novice user -- may often speed up the interaction for the expert user such that the system can cater to both inexperienced and experienced users. Allow users to tailor frequent actions. Hot keys excel выделение ячеек и он посчитает сколько там вышло

17. Describe the Aesthetics and Minimalist Design heuristic? Aesthetic and minimalist design

• Dialogues should not contain information which is irrelevant or rarely needed. Every extra unit of information in a dialogue competes with the relevant units of information and diminishes their relative visibility. Visual layout should respect the principles of contrast, repetition, alignment, and proximity. Header and footer rows, as well as the summary column use subtly different colors to indicate they are distinct from the content