Download A Pattern Language for Web Usability by Ian Graham PDF

By Ian Graham

The best way to layout nice web pages utilizing software program styles as a advisor! *The first ebook on utilizing layout styles to accomplish net usability. *Ian Graham describes his distinctive trend language for websites referred to as "wu "(web usability). inside of "wu "he bargains seventy nine person net usability styles. *The ebook will assemble components of 2 laptop e-book classics: "Design styles "(Gamma) and "Designing internet Usability "(Nielson). *This ebook may help the thousands of internet designers who have to layout powerful and uasble websites. *Beautiful complete color design.User point: Intermediate viewers: sensible advisor for net designers and bosses of site improvement tasks. The ebook also will entice the styles and HCI groups. know-how: styles are general ideas to recuring layout difficulties. A trend language permits those options to be associated into sequences to handle specific purposes. writer Biography: Ian Graham is an advisor with over twenty years adventure: a practitioner in IT for over 25. he's across the world famous as an expert on enterprise modelling, object-oriented software program and software program improvement processes.He is the writer of thirteen books together with the bestelling "Object orientated equipment 3ed "from Addison Wesley.

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Acceptability. ◆ Structure. ◆ Reliability. ◆ Efficiency. ◆ Maintainability. ◆ Extensibility. 8559 Chapter 2 p23-46 9/11/02 1:45 PM Page 34 34 A pattern language for web usability ◆ Cost. ◆ Usability, covering, learnability, memorability, productivity, propensity to make errors, support for tasks (task analysis), safety and range of users. ◆ Suitability for different locations and conditions. Prototyping is widely seen as essential for the production of usable interfaces. Some authorities recommend the use of specialist graphic or industrial designers as part of the development team and some go further, suggesting the complete separation of the user interface development within the lifecycle.

However, it does provide a handy checklist of points to consider during site design. The checklists are constructed using a pattern language, which is set out in Chapter 3. Many software developers will be familiar with Alexander’s work on pattern languages discussed in Chapter 1. Alexander suggests that great buildings arise when egoless designers let them emerge from a pattern language, in the same way that great poetry flows from the patterns in the grammar of a spoken tongue. There is already a substantial body of knowledge about user interface design, largely founded in cognitive psychology and anthropology.

All these usages can be viewed as examples of object wrappers, when the GUI is built using an object-oriented language. 8559 Chapter 2 p23-46 9/11/02 1:45 PM Page 27 2 Designing user interfaces 27 The apparent, main benefits of GUIs are consistency, ease of use, learnability and the ease with which multiple applications can be combined. However, there are drawbacks, including extra software, hardware, operational and support costs, and more complex software development. The rapid expansion of standard memory and hard disk capacity during the 1990s is mainly a tribute to the hardware hunger of GUIs.

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