DESIGNING WEB USABILITY PDF
from: salelive.info Do not link directly to the PDF file (the hosted address could change). .. The special guidelines for designing to accommodate seniors are not covered in this. Book page for Jakob Nielsen's classic book (1/4 million copies sold) Designing Web Usability: The Practice of Simplicity, available in 22 languages. Approaches, methods and techniques for Web usability. . guidelines based on these theories and aimed at the designers of World Wide Web sites.
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Designing Web Usability by Jakob Nielsen. Book report by Kari Dahn · maid, University of Reading · Oct 24, Jakob Nielsen has been called a guru. designing web usability pdf designing web usability salelive.info is the one-stop source for user experience best practices and strategies. PDF | Web site design is popular and prolific, meeting the communication needs of a large user community. Many of these sites are poorly.
Over , Internet professionals around the world have turned to this landmark, definitive guide to usability. From content and page design to designing for ease of navigation and users with disabilities, Designing Web Usability delivers complete direction on how to connect with any web user, in any situation. New Riders Publishing. Please buy through these links: Amazon pays me a referral fee that doubles the share of the purchase price that goes to the author, giving me time off from other projects to write new books. Do we need one more? If it's from Jakob Nielsen.
The purpose of the site was to promote interaction between the experts at the various rural health clinics and between the medical and administrative staff. As the users had different degrees of expertise in the use of computers, the problem of the usability of the site was fundamental. The subjects, members of the medical and administrative staff at eight rural health clinics, were interviewed in their workplace in relation to their problems and needs.
By the application of the contextual inquiry method, it was discovered that the features required to make the site more easy to use were a simple home page, more visible distinction between links relating to the clinical area and the administrative area, and on-line instructions relating to the site search engine. This model acts on two levels; at a lower level, it sets the objective of identifying classes of users and purposes, as well as the relationship that links them together and their implementation in the design of the system.
At a higher level, the objectives are the conceptualization of the most important requests of the users, the analysis of a model of their behavior, and the design of the architecture of the system to include all of these elements. As claimed by Carroll, Mack, Robertson and Rosson , OOD represents an important step forward in the study of software technology, because it offers new opportunities and possibilities for change.
Designing Web Usability: a Book by Jakob Nielsen
They also stress that the key idea for promoting this new form of development is to link object- oriented design to the use of scenarios. The technique of including scenarios as a support to the design of computing artifacts takes the name of scenario-based design.
In its original meaning, scenarios are stories that describe people and their activities . These descriptions, which refer to concrete situations, offer information on behavior in the use of computerized systems: This method has recently been applied by a number of academics in the evaluation of web pages.
The methodology adopted was based on the use of scenarios built by the users. Initially, they were provided with information on the functional characteristics that define the experience of the user and the importance of user input in the design process. The scenario built by the participants was divided into three sections: The users were asked to build some scenarios without referring to the elements e.
In this way, the scenarios produced were authentic indicators of the information required by the users, how they planned to use it and how it should be structured. The evaluation of the site was performed by comparing the actions imagined in the scenarios, which reflect the desires and the expectations of the users, with those effectively feasible on the site. This comparison led to the acquisition of useful information for the re- design of the site and the creation of specific guidelines concerning the hierarchical organization of the information, the basic characteristics of the home page and the characteristics of some specific contents.
They selected fifteen sites from the following categories: The thirty-five participants, potential users with different levels of web experience, were divided into five groups.
Each group was asked to evaluate three sites, one per category. The scenarios involved the simulation by the participants of real situations using the site. These simulations were videotaped. At a later time, the subjects were asked to design, based entirely on their memory, a map of the hierarchical structure of the site. The procedure used allowed the measurement of the capacity of the users to develop an understandable and aware image of the structure of the information presented.
This capacity is a fundamental parameter in evaluating the usability of sites with a complex hierarchical structure. Scholtz, Laskowski and Downey , on the other hand, evaluated the usability of the National Institute of Standards and Technology virtual library site, the resources of which are mostly available to the public.
They collected 28 scenarios provided by the employees of the library, which included, following a scheme supplied by the researchers: The results, which led to the identification of the aspects to be revised in the organization of the library, were particularly important, given the creation of an actual virtual participatory design meeting. The methodology of collecting the scenarios, in fact, involved these being made available to all the participants, the use of e-mails to advise the participants of the arrival of new scenarios, comments on the scenarios proposed by the others, and indications on the use of the information collected for the re-design of the site.
One particular approach of scenario-based design, finally, was used by Neale and Kies . They analyzed a series of brainstorming sessions in which the usability of the site of the Human Factors Engineering Center at Virginia Tech was evaluated.
Forms that work: designing Web forms for usability
The groups considered were made up of between two and five participants. The participants were representatives of potential users. The brainstorming task involved the generation of scenarios using the elements of a number of lists relating, for example, to the needs and the objectives of the users, or to the information to be included on the site.
It is clear that most of the interest in Internet as a medium is now focused on the World Wide Web. The Web, which may be described as the hypertext  and hypermedia part of the Internet, today embraces new tools for group communication and navigation systems that are able to combine the potential of the hypertext with the advantages of virtual graphic environments .
The Web favours the exploration logic of the user, the multiplication of the means of access to information , the creation of new work environments , and the possibility, in the widest sense, to connect communities of practices so that they can share their expertise .
These are the systems that usability must guarantee, refine and make available to a growing public. In this way, it seems clear that the role of usability is today expanding and undergoing complete transformation. Usability, for some time now successfully experimented within the context of interface problems, is no longer required to respond in a decontextualized manner to aspects linked to software or hardware as ends in themselves, separate from the rest of the world and in particular the context in which they are used.
G Morris and A. Dillon, The importance of usability in the establishment of organizational software standards for end user computing, International Journal of Human - Computer Studies 45 Bobrow, R. Cheslow and J. Whalen, Eureka: Stanford University, Palo Alto.
CA, Mantovani, L. Gamberini, M. Martinelli and D. Exploring the suitability of a virtual Environments for safety training: Signals, Norms and Ambiguity in a simulated virtual escape. Cognition, Technology and Work. Perkowitz and O. Etzioni, Towards adaptive web sites: Conceptual farmework and case study.
Artificial Intelligence Cottone, N. Zingigrian and M. Maresca, Reti di apprendimento asincrono in sussidio ai corsi universitari.
Didamatica In Press, Ossola, Gli infortuni domestici. Muzzio, Norman, Psychology of everyday things. Basic Book: New York, Jordan, S. Draper, K. MacFarlane and S. Diapere and N. Hammond, Eds. University Press: Cambridge, Jordan, What is usability? Robertson, Ed. Taylor and Francis, , pp Jordan, An Introduction to Usability.
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Designing Web Usability: The Practice of Simplicity
Smith, Eds. Amsterdam, Nielsen, Usability Engineering. Sanders and E. McGraw- Hill, Wilson and E. Corlett eds. Evaluation of Human Work.
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Il Mulino, , pp Shubin, D. Falck and A. Johansen, Exploring colors in interface designs, Interaction 3 4 Thomson Learning, McDonald and R. Stevenson, Disorientation in hypertext: Larson and M.
Czerwinski, Web Page Design: Human Factor in Computer System Mahwah NJ, US: Lawrence Erlbaum Associates, , pp. Alexander and M. Tate, Web Wisdom. How to evaluate and create information quality on the Web. Cockburn and S. Jones, Which way now? Zizi and M. Beaudouin-Lafon, Hypermedia exploration with interactive dynamic maps, International Journal of Human Computer Studies 43, 3 Head, N. Archer and Y. Campbell, Facilitating Navigation in Information Space: Macklin and T.
Beaumont, Navigating the World Wide Web: Carassa, Expertise. La conoscenza entra in azione, in Ergonomia. Il Mulino, Bologna, , pp. Clancey, Situated cognition. On human Knowledge and computer representation, Cambridge: Suchman, Plans and situated action, Cambridge: Bardram, Plans and Situated Action: Mantovani, Network.
Reti elettroniche e reti di significato, in Ergonomia. Il Mulino, Bologna , pp Blackwell and H. Arnold, Simulating a Software Project: Osborn and B.
Khazei, Eds, , pp. September 20, August 3, Designing of New Data Synchronization System. November 6, March 1, Why Us? Related Articles: All Rights Reserved. The full text of this article hosted at iucr. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Volume 11 , Issue 1. Please check your email for instructions on resetting your password.
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