| Terms |
Definitions |
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anthropomorphism
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considering machines (especially computers) as if they have human capabilities or responsibilities
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asynchronous collaboration
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computer-mediated shared activity that does not take place in real time (see synchronous collaboration)
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chunk
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a structured collection of information that acts as a single unit with respect to storage and information processing capacity
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Physical Affordance:
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helps enable physically doing something (button size). useful for power users.
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semantic filtering
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a dynamic information visualization technique in which the semantic attributes of each data point are used to determine whether the element is visible, and where and how it is rendered if visible
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nonverbal communication
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the body language, facial expressions, gestures, and other non-language cues that extend and aid interpretation of normal conversations
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macro
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a user-defined sequence of events that is stored, labeled, and subsequently executed as a single command
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user-system conversation
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a scenario-based analysis technique in which user input is specified as one side of a conversation and the system’s interpretation, processing, and response to this input is specified on the other
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What is the competitor for lightscribe?
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labelflash
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localization
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a design strategy in which global interaction and exchange is supported by adapting information and user interface designs to particular regions and cultures
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GOMS analyis
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an analytic evaluation method that involves describing users’ goals, operators, methods, and selection rules for computer tasks
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heuristic evaluation
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a user interface critiquing process carried out by experts with usability guidelines
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cooperative design
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a variant of user-centered design that emphasizes the direct involvement of users in analysis and design activities (also called participatory design)
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formative evaluation
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usability analyses carried out during system development with the goal of identifying usability problems and guiding redesign
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information visualization
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a representational technique in which properties of data are mapped to visual features and rendered as a spatial display
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vertical prototype
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a user interface prototype that illustrates all of a system’s functionality and user interface but for just one or a small set of tasks
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software agent
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a computational entity that observes users’ behavior, make inferences about their goals and needs, and offers suggestions or other helpful advice
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stakeholder profile
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a summary of the general characteristics of a stakeholder group, including their background, expectations, and technology preferences
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user background survey
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a questionnaire (usually brief) completed by a usability test participant prior to interaction with a system or prototype (sometimes called a pre-test)
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workflow system
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a business support system that operates on an explicit model of task procedures; this model is used to plan, coordinate, and track interrelated tasks
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What defined the video cd format?
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white book
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how hot does the dye get?
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250 celcius
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tiled display
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a user interface style in which parallel tasks or subtasks are presented in separate windows that are sized and arranged to prevent overlapping (see also multiple coordinated views)
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usability inspection
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an analytic method in which usability experts examine the user interaction required to perform central or critical tasks with an interactive system or prototype, looking for problematic aspects of user input or system response
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visual language
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the features of an information design (e.g., menu style, font type and size, button shape and size) that are repeated across visual displays to create a sense of consistency and coherence
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retrospective interview
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a user interview conducted soon after a task has been completed to determine what usability issues stand out in a user’s memory of the interaction; sometimes the user’s memory may be prompted with a videotape or other records of activity
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layout appropriateness
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a design heuristic in which interface controls (e.g., a button in a dialog box) are laid out to optimize travel time for the most common usage cases
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wizard (help documentation)
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online assistance wherein a computer system recognizes that the user is attempting a specific task, and offers step-by-step guidance through the procedure
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social computing
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the study and design of user interfaces that explicitly engage and respond to people’s social expectations
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human factors
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the study of variables that influence human performance in work contexts
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designer’s model
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the mental representation of a design held by a designer, sometimes shared via design documentation like scenarios or feature lists
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graphics bound
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updating displays takes a lot of effort
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Faster x speeds are only useful for?
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transferring data.
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At what range can human ears hear?
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20-20,000 Hz
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interval variable
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data measured on a scale for which any two contiguous values are equi-distant
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floor control
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the mechanism by which users take and relinquish input control in a shared work system
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intelligent tutoring system
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an online training system that models user knowledge and progress through pre-analyzed learning tasks, and uses this model to make suggestions, correct errors, answer questions, or provide other learning support
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depth (of a hierarchy)
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the average number of intermediate nodes between the root of a hierarchical information structure a terminating node
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What recording method turns laser off bw tracks while reading data for next track and puts 2 sec gap bw tracks?
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Track at Once
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How much storage is required for 1 minute of cd quality music?
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10 MB
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7 dialog box guidelines
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1. internal layout, like menus & forms2. meaningful title3. top left to bottom right sequencing4. clustering and emphasis5. consistent layout6. standard buttons7. error prevention by direct manipulation
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critical incident
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an event reported by a user as having a significant effect, either positive or negative, on task performance or satisfaction
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How many bits does a computer display have?
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24 or 32
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What does All Media Guide do?
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maintains several databases about music, movies and games.
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For color depth, display colors are broken into what 3 colors?
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red, blue and green
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pragmatics (of a user interaction device)
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the physical behaviors that are required to manipulate the input or output devices in a user interface
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What are some factors that aid encoding for long term storage?
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Create connections (complex sentences, imagery, link to self), Generation (actively generate information), Organization (recall by groups, present in an organized way, meaningful framework)
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Ratio of the original uncompressed audio file to its compression version is?
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Compression ratio. (if a uncompressed file is 10MB and compressed version is 1MB then the compression ratio is 10:1
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If an activity is procedural then..?
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we don't have to think about it.
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What recording method must be written without interruption and must be written all in one pass?
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Disk-At-Once. laser kept on whole time
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Why cant some drives read cd-r?
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bc recording method is different than that of a pressed cd. contrast and reflectivity are less
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What did we learn from the alphabetic keyboard and the french AZERTY keyboard?
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that humans are adaptable- we've adapted to technology
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What does the term analog actually mean?
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Something that is similar (sound can't be directly captured and stored it must be converted into something like it but is actually not)
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What are the capacities of dvds? (4)
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4.7GB, 8.5GB, 9.4GB and 17.0GB (single single double double)
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What have been the problems with handwriting and voice recognition?
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bc of dialects etc. Not the best way to communincate
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Can a hd-dvd store a high def movie using mpeg2?
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NO! must use mpeg 4 or VC1
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When a analog wave is sampled by the Analog-to-Digital Converter, what two variables are there to control?
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The Sampling Rage (how many samples are taken per sec) and the sample size precision of resolution (controls how many different gradiations or values that are possible in each sample)
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