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Definitions |
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feedback
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information generated and communicated by a computer system in response to input from the user; typically it is provided to guide or confirm task-relevant behavior
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continuity
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a Gestalt perceptual principle stating that objects positioned along a smooth curve are more likely to be seen as a group
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similarity
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a Gestalt perceptual principle stating that objects that look alike are more likely to be perceived as comprising a group
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language of the system?
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core language
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interaction design
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mechanisms for accessing and manipulating the elements of an information design to facilitate the user’s goal selection, action planning, and action execution
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electronic brainstorming
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a computer-mediated discussion in which participants are able to contribute ideas freely and in parallel, often anonymously so as to minimize social inhibitions
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proxy server
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an intermediate server that intercepts and assists in processing the requests sent by a client to a server on a network; the technique is often used to improve the quality or latency of a server’s response
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scaffolding
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an instructional technique in which people are given support of some kind (often tool-based) that allows them to carry out, and thereby learn about, tasks that they otherwise would be unable to do
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waterfall
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an approach to software development that organizes activities into a series of modular phases, beginning with the analysis of functional requirements, and continuing through software design, implementation, testing, and maintenance
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baseline
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task performance or other usability outcomes that are measured under normal conditions and then used as a basis for comparison to other conditions
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context-aware computing
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computer functionality and user interaction options that are selected and presented as a function of what is known about the use setting
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Who owns dvd technology?
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no single company.
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Transition to Interaction Cycle
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assessment, planning, translation, physical actions, outcomes
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field study
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a usability evaluation of an installed system carried out in a workplace context, often involving surveys or observational methods
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atriculation work
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the collaborative effort required to document, exchange, schedule, refine, and otherwise coordinate shared activities
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Gulf of Evaluation
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the psychological distance between what is displayed by a computer and the user’s understanding of how it relates to current task goals
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grid-based design
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an information design strategy in which a grid is defined to specify the physical scale of visual elements, their relative position, and axes of symmetry
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multimodal user interface
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user interaction that integrates multiple input and output channels, either in parallel or in sequence
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usability evaluation
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any activity, either analytic or empirical, directed at assessing or understanding the usability of an interactive system or prototype
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think-aloud protocol
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a usability evaluation method in which the user speaks out loud his or her goals, plans, behaviors, and reactions while using an interactive system
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workplace themes
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labeled categories used to group related observations, stakeholder comments, or other data collected in a field study
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user documentation
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stored training and help information provided to assist users in carrying out activities with a computer system
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Format from Real Networks?
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RealAudio .ra or .rpm
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pluralistic walkthrough
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a variant of a usability inspection where usability engineers, designers, and end users collaboratively step through and critique a user interface
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chauffered prototype
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a user interface prototype that is not used directly by a test user, but instead is used by a designer under the user’s direction
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cognitive walkthrough
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an expert critique of a user interface that involves simulating the use of a system and analyzing possible problems in goal selection, planning, or action execution
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training wheels
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an approach to user training that involves temporary deactivation (but not hiding) of functionality deemed unnecessary or inappropriate for use by novices
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software crisis
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the failure of the software industry to keep up with the demand for systems and applications of greated complexity, reflected in cost overruns, late delivery, and ineffective and unreliable systems
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longitudinal study
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analysis of one or more user behaviors or attitudes over an extended period of time, often in a real world usage setting
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opportunistic behavior
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the tendency for users to generate and pursue goals suggested by manifest elements of the user interface
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multiple coordinated views
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a visualization technique in which complementary views of an underlying information structure are presented, manipulated, and updated simultaneously (see also tiled display)
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external consistency
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the use of similar (or identical) interface actions and objects in a system for similar task actions and objects encountered in other systems or in the real world
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independent variable
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an attribute of a usability test situation that is manipulated to determine if it influences outcome measures (see dependent variable)
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sociotechnical systems theory
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an approach to software development in which the information technology system and the surrounding organization are analyzed, designed, and iterated as a single co-evolving system
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self-instruction
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an approach in which people learn on their own using standalone documentation, tutorials, and tools
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In a cockpit, a red light is associated with red but it would catch more attention if it was?
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green
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What country is on top of super computers?
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US
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multiple overlapping windows
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a user interface technique in which parallel tasks are presented and pursued in different windows open simultaneously; the layering of windows mirrors the activity history of each task
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ubiquitous computing
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a term used to refer to the increasingly pervasive availability of computational processing in the world around us
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Enter your front text here.
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Enter your back text here.
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What is a blanket term for technologies, designed to reduce or eliminate digital content piracy?
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Digital Rights Management
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11 Menu selection guidelines
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1. use task semantics to organize menus2. prefer breadth over depth3. show position by graphics 4. use items as titles for subtrees5. group items meaningfully6. sequence items meaningfully7. use brief items8. use consistent grammar9. use type ahead, jump ahead shortcuts10. enable jumps to previous and main menu11. online help
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MOO (Multi-user Domain Object-Oriented)
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a MUD where the characters, their behavior, and all other services are built and extended using an object-oriented programming language
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More bits per pixel =
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greater choices, more intensity more colors
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What is a file format developed by microsoft and ibm?
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.wav (NO COMPRESSION!!)
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Every year Jack Dongarra from Univ. of Tenn puts out list of?
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500 fastest computers
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veridicality (of virtual reality)
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the extent to which a simulated world matches the structures, information, and actions possible in the real world
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What 3 senses are most important to HCI?
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Vision, Touch and sound
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What was a clever algorithm used to map a calculated CD indentifier to the album title, artist and song title?
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Compact Disc Database (CDDB)
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Trends with super computers? (3)
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Use Linus, lots of processors and mostly used in National labs in US (prob for weapons research)
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validity (of a usability evaluation)
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the extent to which the conditions of an evaluation (users, setting, tasks) are representative of real world use
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How many companies are on the dvd forum?
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200 but 10 founding companies
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4 ways to move quickly thru menus
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1. Keyboard shortcuts2. mouse ahead on pie items3. browser bookmarks 4. tear off menus
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Even using dual layer the current dvd does not have enough capacity for?
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a high def full length movie
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Haptics, or touch, is said to be less important, why?q
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Because it is very difficult to study
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What is a con of dual drives?
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must break law to make copy and disks are more expensive
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