perspective wall assistive technology timesharing system diary study information retrieval navigation vector display puck human factors locking select-then-operate paradigm dingbat learner-centered design forward compatibility open card sort time website maintenance user interface voice output communication aid social psychology embedded computers time compression task completion time layout manager intelligent tutoring system target configuration object-oriented programming screen refresh rate -Widgets slip customer support scope notes feedback DWIM Common User Access single-display groupware interview groupware RAD skins proportional scrollbox speech impairment clearly marked exits raster display information efficiency staging damping factor Aqua extreme programming -Project Management electronic ink MouseKeys control selectivity HSV safety-critical system closed captions habituation open captions remote usability evaluation user needs analysis spin box mode error high-fidelity prototype query box grammar analysis semiotics serialization CSCW dome tree MHP display inertia group box CSCL website design taskbar usability engineering situational impairment split line criterion testing -User Interaction Principles vigilance task alpha testing cognitive impairment -Pointers declarative graphics system within-subjects design trending stereopsis rubberbanding line-oriented interface -User Profiling day-in-the-life studies -Windows window title bar accountability window power law of practice vibratory feedback stickiness multimodal interaction usability testing standards inspection -Buttons call control panning help desk pinned menu head-mounted display competitive analysis requirements analysis information filtering defect tracking comparative study cut scene gauge semantic net analysis lurking zooming user interface unfold button cognitive walkthrough dial clipping drag and drop translucency quality inspection game balance claims analysis simplicity banner ad glass teletype side-channel messaging click pulldown menu noun-verb paradigm universal access minimize control MDI inverse video keyboard echo confound end box case study zoom box little arrows shared whiteboard shortcuts hand-held device foley button toolglass tongue-activated joystick minesweeping hierarchical menu GPSS alert box -Search double click forcing function KISS -Groupware Applications context-sensitive help composite selection fundamental attribution error interstitial advertising redundant modalities similarity matching FAQ doorway page brain-computer interface design for manufacture proxemics guided tour moderator information anxiety symbol segmentation candy box human-computer interaction mockup valuator resize box latching modeless text entry box dropdown menu trail usefulness learning time user acceptance testing thumbnail sketch keyboard accelerator predictive metric -Miscellaneous active badge side effects time-stamping luminance ratio desktop metaphor construct validity consistency accumulating attribute group I-beam pointer text-to-speech system feature inspection intelligent cut and paste agent frames waterfall model -Prototyping -Design Principles modal Usability First™ prototyping theatre customer experience -Groupware Principles -Design Process Principles chromostereopsis HIS intrusiveness customer loyalty tethered viewpoint squint test standard pluralistic walkthrough user studies floor control programming by example Meyer's Law chording CRT trackball website topology teleworking scrollbox resource bundle telepointer tele-embodiment yoozability Gantt chart homepage pause removal mission creep depth perception user interface guidelines morse code distance learning fail-safe out-of-box experience videotaping -Design Philosophy control key object relationship matrix associative links ergonomics distributed architecture garden path toolbar design space analysis between-subjects design event-driven interface routing slip structural links egocentric viewpoint link rot automatic scrolling CPR confirmation slip -Word Processing/Writing readability form follows function coaching method checkbox usability problem tracking in-car interfaces slow in and slow out face validity wireframe Xerox Star triangulation visual interaction design icon struts and springs document management systems utility window critical incident analysis latency focus ring ecological validity commons problem persuasive computing reversible actions WIMP interface expando exit tunnel drag Open Look Graphical User Interface GDSS ALV architecture low-fidelity prototype Metcalfe's Law Dvorak keyboard HTML cross-platform compatibility VDU spring-loaded mode HCI complaint tracking token-passing floor control natural language search query retrospective testing WYSIWYN usability lab OCR sensory defensiveness objects-and-actions design methodology keyboard focus WYSIWYG -Internationalization -Computer Graphics usable model-view-controller workflow systems keyboard payoff page web-safe color palette cascading stylesheets style guide readme file cascading menu tiering language disorder end-user programming -Games rollovers decision tree use what you build recall individual differences Slow Keys speech act haptic interface crossbeam pointer "You are here" indicator binocular display beta testing design rationale typeahead property sheet color blindness embedded help situated action NGOMSL cut and paste design for yourself transparency path web browser guidelines checklist human-machine interface awareness -Empirical Methods 2-second rule competitive user testing face-to-face external validity sitemap avatar touch typing sensory modality storyboard scientific visualization embedded links multi-line input gesture CMYK progressive disclosure analytic memo prompt ruggedized device feedback form trash can / recycle bin satisficing data-centered interface design for evolution metaphor grabber pointer learned helplessness -Indicators latecomer graceful flow Fitts' Law -Pen-based Computing CHI performance measure delimited search hunt and peck tech tree screenshot prototyping mental integration role-playing walkthrough sprite random observation described video sense of presence resize corner ethnography programming by demonstration error option sheet dot-coma -2D Graphics dwell capture error adaptive palette visual impairment button halo effect hearing impairment pointing device dwell time progress indicator -Conceptual Design 80/20 rule cost-benefit analysis adapted computer access vortal internal frame ephemeral awareness screen pop human anthropometry seizure disorder automaticity -Business and Marketing tear-off menu explicit destruction squash and stretch scanning auto-exit video communications screen scraping isometric joystick scrollbar opportunistic goals access key group-enabling technologies menu-driven interface job shadowing load testing -Programming Techniques separable user interface cost justification insertion point widget -I/O Devices notification slip waypoints tool EMS frame rate EMR gnomon usage-centered design steal and modify drag texture grid menu tooltip Microsoft Windows hypertext X-Windows intuitive barrel-tap -I/O Design Principles newsgroups and mailing lists cosmesis chauffeured prototype visual programming language usability inquiry CAI -Disabilities cognitive artifact immersive interfaces hyperbolic tree -Input Devices information scent gold plating -Help Systems carpal tunnel syndrome psychophysics forms-based programming green screen videoconferencing bit depth toggle key slider password field user simulation cue cards decision support systems GUI tab traversal order transition effects dataglove tactile interface domain expert distributed cognition participant observation -Typography collapse box exocentric viewpoint man page -Software Architectures pervasive usability scroll arrow grab handles command key screen-enlargement utility affordance double tap placard consistency inspection ease of use stimulus-response compatibility case sensitivity spoken language interface internet appliance -Usability Methods menubar split bar pilot test test protocol keystroke rollover -Psychology popup menu creeping featurism disk tree brand identity motor impairment corrector view user interface design virtual community threads selection bias WYSIWIS gap analysis thesaurus macroergonomics information visualization context of use graceful degradation horizontal and vertical prototypes Sticky Keys surrogate users question-asking protocol aesthetic integrity questionnaire turner accessibility aids clinical trial modifier key system administration URL proxy speech-to-text system technophobia inter-observer reliability kinesthetic feedback maximize control benchmarks qualifier key formal usability methods semantic directness tree diagram wizard of oz prototype touchpad familiarity synthetic metric -Programming Tools clown-invariant research design interlacing thumbwheel usability death spiral wow factor sociogram -Graphic Design follow through and overlapping action EDS target audience multi-dimensional scaling field 3-click rule softkey CASE journaled session indirect user locus of attention augmented reality privacy interactive fiction small user interface design safety pointer backward compatibility hysteresis forgiveness cursor affinity diagram coupling -Internet Technologies control sensitivity anecdotal report iterative design glyph -Groupware legibility floating palette EBS timeline replicated architecture ghost indicator attention to detail concurrent help data mining chrome tabs stakeholder -Software Engineering speed-accuracy tradeoff OOUI foot pedal legacy system -Usability Evaluation search engine state machine diagram video coding above-the-fold teamware escape key tapping focus group WWW turn-taking psychology of programming cognitive modeling entry tunnel attract-mode opening direct manipulation gee whiz factor domain name collaborative inquiry CPM-GOMS software monitor syntax-directed editor screen reader scroll thumb environmental control touch interactive display meta-analysis -Usability Metrics WYSIWITYS Motif auto-completion user-extensible systems decision tree analysis session control participatory design spot graphic artifact analysis auditory menus hot-swappable device demand characteristics industrial design Unicode verification front end field testing user-friendly gaze awareness adaptive interfaces acronym expansion pie menu -Fields of Study scrolling listbox pinyin input -Interaction Design GID page-oriented scrollbar scroll elevator ISP logical input device -Video see-and-point interface -Education content blueprint prisoner's dilemma comp keyboard mnemonic installer precision regression testing rehabilitation engineering membrane keys spamdexing responsiveness artificial intelligence anchor point busy pattern selection pointer walk-up-and-use combo box minimalism adornment live dragging single-case experimental design cognitive load virtual terminal speed pick device attention panel observation room visual brainstorming eye contact Java GOMS focus+context event handler motional input device splash page BPR individualization marquee screen font rough procurement decisionmaker -Feedback Techniques task-based help luddite -Interaction Paradigms robot collaborative drawing white space semantic differential -Needs Analysis snapping / gravity learn mode greeking facilitator group calendar lens gateway pages technical writing information foraging earcon frankensteining script white finger clipboard output device mouse critical mass contextual menus VRML discount usability -Color unistroke text input usability advocate UIST percent-done indicator eye-tracking Apple Macintosh drilldown use cases domain knowledge multiuser usability metrics UISE affective interface physical integration diversity perceptual user interface training analytical modeling polymorphic artifact -Navigation usability selection box -Groupware Widgets effectiveness designer management stroke recognition split window controlled vocabulary system Moore's Law access privileges reciprocity separator bar personalization deep links usability consulting -Output Devices eye candy CMN-GOMS convention menu separator bloatware parametric search Venn diagram exploratory learning centralized architecture conversational prop scrollbar gutter technology push flowchart -Cognitive Modeling flicker user profile portal fog of war UCD shopping cart hit logs closed card sort orthotics device independence cursor key pluggable look and feel architecture ghosting gestalt principles observational study busy pointer bat task analysis redundant coding adaptive menu publish-subscribe model ellipsis training wheels interface statistical validity -Information Visualization playability synchronous groupware conversion rate documentation augmentative and alternative communication assistant / wizard articulatory directness -Inquiry undo simulator sickness locator boolean search internationalization folder / directory typography breadcrumbs internal validity business rules toggle button term rotation wearable computers look and feel N-person view information architecture -Acronyms hover state pen-based computing balloon help paddle mutually exclusive attribute group UIMS paper-and-pencil prototype diversion portrait and landscape PIM natural language interface clinical workstation -Website Design VR change bars radio button RSI ISO 9000 chiseled appearance chat navbar tangible user interface multimedia Likert scale negative space scoped search automatic evaluation lasso-tap collaboratory favorites list instructional design glare interaction design medical informatics cognitive psychology biometrics software crisis edutainment / infotainment mental map TreeMap QWERTY keyboard relevance diagnostic evaluation triple-tap text entry indication resize handle joystick information race SIGCHI co-located auditory feedback user testing bandwidth heuristic estimation co-discovery method survey heuristic evaluation -Drawing locked-in syndrome fisheye view touchscreen hacker ethic usability evaluation PERT chart hedonic quality autosave information design constraint payoff matrix tradeoff analysis overwrite mode ten minute rule tabletop display active value breakdown analysis IDE "D" link Know Thy User ROI flat screen display antialiasing disability access business goals demographics environmental profile -Menus wordwrap storefront testing contextual inquiry PDA callback Hick's Law e-commerce mythical man-month input device blow-suck tube low vision voxel design-prototype-test cycle customization CAUSE cycle button -Accessibility persona instant messaging theme -Ethics Lotus Notes recommender system KLM cost-effectiveness evaluation distraction ISO 9241 ink text auditory I/O end user kerning cone tree emoticons diagnostic pretesting touch tablet glance one-way mirror -Layout self-report subpane about box descriptive metric demand pull dead key convenience bullet unique selling point idiot-proof best practices -Text Entry and Forms asynchronous groupware MUD control dialog box experiment anticipation virtual toolkit virtual device -Healthcare collaborative writing selection disclosure triangle -Page Types -Errors light pen attitude measure TTY mobility impairment spider beaming tree view racing stripes usage study cognetics dataflow diagram disability window manager playtesting pointer jumping mouthstick scenario status line Hawthorne effect usability inspection -Multimedia video prototyping virtual value chain analysis search plug and play session website lexicon think aloud protocol conversation analysis fingertip controls CSMR skip link working set reminder system ambient media user interface toolkit prototype-instance model CSME mixed state drag handle spiral model information overload email nomadic computing user interface critique crosshair brainstorming question and answer dialogue -Application Domains mistake -Scrollbars debriefing -Accessibility Tools delay RGB realtime groupware sccs anonymity role -Input and Output Devices orphan page snapshot shared window system caret -Animation hotspot quality assurance information appliance algorithm animation warning -Hypertext -3D Graphics router page screen real estate link rapid prototyping empirical methods incremental search close box learning curve flush 3d style stress testing force feedback efficiency pushpin command-line interface -Psychological Principles -Audio opaqueness ubiquitous computing window dressing card sorting microergonomics baseline logical punctuation egoless programming mission-critical system early adopter starfield display AWT mouse-button binding well automation cyberchondria productivity paradox stone-paper-scissors obviousness schedule chart beveled appearance site visit