Enhancing the explanatory power of usability heuristics

Abstract

Several published sets of usability heuristics were compared with a database of existing usabitity problems in order to determine what heuristics best explain actual usability problems. Based on a factor analysis of the explanations as well as an analysis of the heuristics providing the broadcast explanatory coverage of the problems, a new set of nine heuristics were derived visibility of system status, match between system and real world, user control and freedom, consistency and standards, error prevention, recognition rather than recall, flexibility and efficiency of use, aesthetic and minimalist design, and helping users recognize, diagnose, and recover from errors.A user-centered approach to interactive system development requires a way to represent the behavior of a user interacting with an interface. White a number of behavioral representation techniques exis~not all provide the capabilities necessary to support the interaction development process. We have developed a taxonomical model of behavioral representation techniques. Our model is an epistemological framework for analyzing and comparing existing behavioral representation techniques, as well as developing and evaluating new techniques. We present the model and results of our evaluation demonstrating the model's reliability and utility within the context of behavioral representation techniques.

User Evaluation Methods for Visual Web Search Interfaces

“…Heuristic evaluations provide a set of guidelines against which the prototype is evaluated [19]. In general, these are presented as a set of usability principles which apply to all user interfaces.…”

Barriers to open e-learning in public administrations

“…On the other hand, the contextualized barrier framework was used for orientation of the design of culture-and context-specific use and adaptation processes of OERs (Article 5). While common design standards and patterns were used as a basis, such as those by Nielsen (1994), or and Galitz (2007), specifications were made with regard to the contextualized barrier framework, for example, its use in the translation of principles into a public sector-specific design. An excerpt of the frame is provided in Table 6 (the text is adapted and stems from Stoffregen et al [2016c]): Nielsen, 1994) Consistency is achieved by using consistent fonts and colour (shades of blue, light yellow, and light red).…”

“…While common design standards and patterns were used as a basis, such as those by Nielsen (1994), or and Galitz (2007), specifications were made with regard to the contextualized barrier framework, for example, its use in the translation of principles into a public sector-specific design. An excerpt of the frame is provided in Table 6 (the text is adapted and stems from Stoffregen et al [2016c]): Nielsen, 1994) Consistency is achieved by using consistent fonts and colour (shades of blue, light yellow, and light red). The navigation function is on the top, with the wordings in page labels/fonts/buttons reflecting the results of GOMS (cf.…”

“…. A third example is the translation of the heuristic help and documenting uses of e-Learning platforms (no.10) (Nielsen 1994). decides to provide tutorials and manuals that are short, simple and informative for learners.…”

“…Shneiderman 2002:149). E.Usability o Users are informed, enjoy control, capabilities allow recognition (Nielsen 1994) Capabilities are highlighted by bolding (are bolded, colored cf. Galitz 2007:164,338).…”