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HCI test 2
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32
Computer Networking
Undergraduate 4
04/02/2012

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Term
re-engineering
Definition
taking an exsisting interface and knowledge gained by and using that to improve it(redesign it)
Term
Templates
Definition
The way that the content is going to be laid out
Term
Accessibility
Definition
An approach which ensures that a UI is designed to be usuable by the widest group of people possible, especially by users with physical, visual, or hearing disabilities.
Term
ISO standards
Definition
1) Systems are easier to understand and use, thus reducing training and support cost
2) Discomfort and stress are reduced, and user satisfaction is improved.
3) The productivity of users and the operational efficiency of organizations is improved
4) Product quality, aesthetics, and impact are improved, and a competitive advantage can be achieved.
Term
commercial style guides
Definition
A commercial style guide is a set of design principles, design guidelines, and design rules used to specify the look of all the software produced for a particular platform. Microsoft has a style guide for all their products(compare office and access)
Term
Design principles(Simplicity)
Definition
It is important to keep the UI as simple as possible. Designers are encouraged to use actions, icons, words, and UI controls that are natural to the user.
Term
Design Principle(Structure)
Definition
It is important to organize the UI in a meaningful and useful way. Features that users think of as related should appear together on the user interface, or at least they should be clearly and closely associated
Term
Design Principle(Consistency)
Definition
Consistency - Consistency in appearance, placement, and behavior within the UI makes a system easy to learn and remember.
Term
Design Principle(Tolerance)
Definition
The UI should be designed to minimize the number of user errors and facilitagte recovery from errors. Tolerating errors so if you make error(when you dont know what you are doing) the system doesnt crash(field validation)
Term
Design Principles(Recoverability)
Definition
The ability of the users to recover from their mistakes in their interaction with the system and hence accomplish their goals. This is an aspect of tolerance.
Term
Design Rationale
Definition
A documented explaination of why an artifact has been designed that way.
Term
Benefits of Recording Design Decisions
Definition
1) you may need to reconsider the decisions you have made in light of changed circumstances.

2) In case you leave the project, other UI designers may need to understand your decisions.
Term
Human action cycle
Definition
A psychological model proposed by Norman(1988) that describes the steps users take when they interact with computer systems. In particular, the cycles shows the way in which users perform actions and tasks in order to achieve their goals
Term
how does the human action cycle influence design process
Definition
1) you may be able to predict difficulties that the users may face with the design and suggest modifications.
2)You may be able to suggest suitable changes in the users' environment and the system's technology.
3)You may be able to suggest necessary skills for the users when they work with the UI, or identify training needs.
Term
Metaphors
Definition
the metaphorical use of words on the screen, static images and icons, and interactive graphics. These elements are used metaphorically when the designer deliberately draws on the user's existing knowledge in order to enable the user to formulate an accurate mental model of the UI.
Term
Interactive Styles(Command line)
Definition
An interaction style providing a means of directly instructing the computer system.
Term
Interactive Styles(Menu selection)
Definition
A menu is set of options from which the user must choose.
Term
Interactive Styles(form-fill)
Definition
An interaction style that allows the user to enter information via a form on the screen.
Term
Interactive styles(Direct manipulation)
Definition
An interaction style that allows a user to maipulate the UI in a way that is analogous to the way he or she manipulates objects in space(moving files from one place to another)
Term
Interactive Styles(Anthropomorphic)
Definition
An interaction style that aims to interact with users in the same way that humans interact with each other.Examples include natural language interfaces and interfaces that recognize gestures, facial expressions, or eye movements. human like
Term
software components(TEXT)
Definition
Advantages: text files are small
text can be manipulated very easily
text is less ambiguous
Readability:font = type face and size
Term
software components(sound)
Definition
Reasons: Applications where the eyes and attention are required to be away from the screen
Applications involving process control
Applications addressing the needs of visually impaired users.

A reasons feedback, audio Instructions
Term
software components(Images)
Definition
reasons: To motivate, to attracct the attention of users, to amuse, and to persuade
To communicate information, especially spatial information
To support interaction

A reconigtion, icon, condsiderations: fimilar
Term
software components(Color)
Definition
reasons: to draw attention, to show status, to make information on the display clearer, to make the display more attractive.
Term
software components(moving images)
Definition
reasons: To illustrate movement
To provide dynamic feedback
To attract attention
To show that the computer system is operating.
To show events that users cannot see directly

Video games
Term
Aesthetics and usability
Definition
There can be a trade off between the aesthetics of the UI and its usability. A vivid background may look stunning, but it could be tiring for the eyes.
Term
Technological convergence
Definition
Merging of different designs ares GUI, web pages, and embedded systems. (think netfixs)
Term
Human action cycle steps
Definition
1) form the goal
2) translating the goal into a task or set of task
3)Planning an action sequence
4)Excuting the action sequence
5)Perceiving what happened
6)Interpreting the outcome according to the users expectations
7)Evaluating what happened against what was wanted
Term
6 principles of good layout
Definition
1)Create Natural Groupings - group related data like customer name and age
2) Seperate the Currently Active components
3) Emphasize Important components - color something red
4)Use white space effectively
5)Make the controls visible
6)balance Aesthetics and Usability
Term
Design Issues for web pages
Definition
1)Widgets on Web pages
2)scrolling
3)Designing for Different Screens and Platforms
4)Using the Screen Area Effectively
5)Improving download time
6)Using Style Sheets
7)Designing for Accessibility
Term
Case Study tokairo part 1
Definition
the ui design for a kiosk and worksheet that enables oil tanker drivers to record the details of their deliveries.
Term
case study part 2
Definition
the worksheet was remodified to a bubble form fill process instead of hand written
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