Quote: small languages such as Scheme and Pascal are insufficient for today's world of graphical interfaces, mobile code, client/server, multithreaded, and multi-language [»steeGL10_1998]

Quote: the Compendium is a manual Hypertext of reference data on human perception and performance; 3000 pages text and 2000 figures, tables, illustrations [»glusRJ5_1989]

Quote: usability categories--simple/natural dialogue, user language, reduced memorizing, consistency, feedback, exits and shortcuts, error messages and prevention [»moliR3_1990]

Quote: HANDS programming language designed for usability by children, fifth grade or older [»paneJF9_2002]

Quote: if remove queries, aggregates, and visibility from HANDS, only 1 of 9 solved a task vs. 7 of 9 with HANDS [»paneJF9_2002]

Quote: people are used to dealing with a rich and deceptive environment, e.g., driving on an expressway [»weisM11_1987]

Quote: meaningful tasks within the domain of the user's interest should be expressible by a line or two of code in the user's very first program [»eiseM4_1995]

Quote: while not intuitive, the minimalist UI feels natural after a couple of hours of training [»pikeR6_1991a]

Quote: ease of use by visible alternatives and by natural mappings from controls and displays to results in the world; e.g., steering a car [»normDA_1988]

Quote: natural mappings can minimize the need for labels; always reconsider a design when labels appear necessary [»normDA_1988]

Quote: the structures of everyday activities are either shallow or narrow, unlike chess which is wide and deep; requires minimal mental effort [»normDA_1988]

Quote: path of least resistance--default settings are secure, avoid accidents, make security easy [»yeeKP12_2002]

Quote: design for people by a good, predictive conceptual model, and visible states and action alternatives [»normDA_1988]

Quote: gulf of evaluation: is the system's state easy to perceive, easy to interpret, and consistent with the user's model; good feedback [»normDA_1988]

Quote: complicated systems must be easy to use; systems can be powerful and simple at the same time [»nelsTH_1974]

Quote: simple things should be simple; complex things should be possible [»smitDC4_1982]

Quote: the goal of computer language design is the rapid and easy production of programs that work as intended [»cleaJC_1975]

Quote: a cluttered, cryptic, alphabetic, help-less interface works well if the designers understand the users' background and tasks [»brooR3_1993]

Quote: gulf of execution: do the actions provided by the system match those intended by the user? [»normDA_1988]

Quote: a programming language's style should reduce housekeeping in its domain while allowing expression in other domains [»blumBI_1985]

Quote: local tools are large, simple tools that sit directly on the Pad++ surface; select a tool by clicking on it; recover lost tools by clicking the "tool box" [»druiA3_1997]

Quote: calculators don't need a special purpose program; just turn them on [»instrumentcontrol]

Quote: why are spreadsheets easy to use? visible, up-to-date, one cell at a time, modeless, direct action, no conditionals, independent cells, any data type, natural model, smart assistance, multiple views [»myerBA_1992]

Quote: spreadsheets are successful because of end-user programming; rarely available in other applications or requires conventional programming [»myerB3_2000]

Quote: should design dialogues to prevent or tolerate errors; e.g., alternative telephone number formats; widely ignored [»moliR3_1990]

Quote: if you must change a system, make it a large and obvious one; otherwise accidental errors become easy [»tognB_1990]

Quote: a system should always provide clearly marked exits; allows escape from accidental errors [»moliR3_1990]

Quote: measure user interface, layout appropriateness by weighted costs of performing common tasks; yields faster performance and preferred layouts [»searA7_1993]

Quote: minimizing the number of keystrokes may not make a system easy to use; want overall simplicity [»smitDC4_1982]

Quote: Smalltalk scales well; the second half is as easy to develop as the first half [»teslL8_1981]

Quote: allow multiple program styles; in paper solutions, participants used many styles including event-based, constraint, graphical constraints, declarative, imperative [»paneJF2_2001]

Quote: a user interface should include multiple ways to say the same thing [»wassAI_1973]

Quote: simple memory aids, such as lists and notepads, are essential to everyday functioning [»normDA_1988]

Quote: physical constraints are best when easy to see and interpret; then the allowable set of actions is known beforehand [»normDA_1988]

Quote: practical ease of use by automatic processes with simple overrides for when the user needs control [»beckJD7_1987]

Quote: over 80% of subjects who abbreviated commands used truncation exclusively; few abbreviation errors [»benbI4_1984]

Quote: found that an editor based on English commands was better than one based on notations [»ledgHF11_1980]

Quote: an English editor did much better than an equivalent, notational editor; demonstrates the importance of an interface's surface syntax [»ledgHF11_1980]

Quote: use noun-verb commands since have more judgment in selecting an object and can change selection [»smitDC4_1982]

Quote: even simplified scripting languages need general-purpose control structures and variables [»myerB3_2000]

Quote: using subtitles to group related items clearly improves search time without changing error rates [»hornAJ9_2001]

Quote: testing blind users with screenreaders; listened incredibly fast; scan with their ears [»theoMF11_2003]

Quote: blind users do not want a special, text version of web pages

Quote: blind users scan the first few words; e.g., start questions with a keyword, use descriptive links

Quote: Andrew's first editor abandoned for Emacs because it omitted basic useful features [»boreNS_1991]

Quote: Andrew's EZ editor won users by implementing a package for C programs that was not possible in Emacs [»boreNS_1991]

Quote: while programming methods help with accidental difficulties, they are only slightly better for essence-borne difficulties; some part of the method becomes painful, distasteful, and difficult [»berrDM10_2002]