Tài liệu Web Application Design Patterns- P9 pdf

... ignored. They make web applications appear interactive and dynamic and contribute to the characterization of RIAs as “ cool, ” an attribute commonly lacking in tradi- tional web applications, which ... drag-and-drop CHAPTER 8 Rich Internet Applications 226 (CAROUSEL). By combining real-time aspects of data update with relevant visual effects, RIAs tend to make web application inte...

Ngày tải lên: 22/01/2014, 02:20

... Problem Many web applications start out empty because they rely on users to pro- vide data (e.g., a defect-tracking application, online calendar, to-do list, etc.). Although the application pages ... the application (or a new functionality within the application) they’ll see an empty page — a “ blank slate. ” They may be confused as to what to do next and may get an impression t...

Ngày tải lên: 15/12/2013, 15:15

... actions. Perhaps the earliest rich interaction in web applications was a RICH-TEXT EDITOR, which enabled users to include formatted text on web pages without know- ing the underlying HTML (HyperText ... comparison. DESIGN TO PREVENT SELECTION ERRORS In instances where users ’ selections are constrained either by the number of items they can select or the specifi c items they can...

Ngày tải lên: 24/12/2013, 20:15

... ). APPLICATION CUSTOMIZATION For enterprise-level web applications, it may be impossible to anticipate and accommodate diverse user needs without compromising usability. For such applications, ... Chapter 3). Although SSO is feasible for enterprise portals, many web portals allow the incorporation of other applications using web services to which users may have to log in sep...

Ngày tải lên: 15/12/2013, 15:15

... search results. For example, return the same results for the search keywords “ WEB DESIGN, ” “ Web Design, ” and “ web design. ” FIGURE 6.21 NexTag shows both the number of results on the current ... item exists in an application. For example, users may want to know if an e-commerce application offers item X. Searching for item X to determine whether it is offered by the...

Ngày tải lên: 15/12/2013, 15:15

... feeds for updates. This eliminates the need for users to sign in to the application to access their saved searches. Related design patterns If two or more users have the need to perform the ... their group (see the SHARING pattern in Chapter 9). 181 INTRODUCTION Lists are common in web applications for displaying a collection of items. However, the approach used to present li...

Ngày tải lên: 24/12/2013, 20:15

... may label an item as “ web site, ” another as “ website, ” and yet another as “ web_ site ” or “ websites. ” By suggest- ing tags and letting users pick from them, the application can minimize ... Like any other web application, poorly designed RIAs can undermine usabil- ity and must be tested for usability. In fact, there are a few inherent usability issues with RIAs designers must...

Ngày tải lên: 22/01/2014, 02:20

... (2002), and Ishida (2008). EXTENSIBLE DESIGN Problem Although web applications are designed primarily for users in a region and for a language, designers may want to make them available ... 313 language-specifi c instances of the application. Furthermore, by making web applications locale-independent and culture-neutral, extensible design avoids design elements that may be...

Ngày tải lên: 26/01/2014, 20:20

... localized applications are available, users need to be directed to the application designed for their region and language. This is particularly impor- tant for applications (e.g., e-commerce applications) ... the application that is not localized or are directed to a localized web application in a foreign language because they are accessing it from a different country; this is becaus...

Ngày tải lên: 26/01/2014, 20:20

... popular web browsers allow 365 INTRODUCTION Although web applications are designed to facilitate task completion, visual design of them shouldn’t be ignored. Not only does visual design play ... components for web design (e.g., Baird, 2007; Lidwell et al., 2003; McIntire, 2008; Wroblewski, 2002). This chapter, however, emphasizes visual design patterns that are relevant fo...

Ngày tải lên: 26/01/2014, 20:20