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Application Programming Interface
at 2008-04-28 02:49:00
Application Programming Interface An Application Programming Interface (API) is a set of definitions of the ways in which one piece of computer software communicates with another. It is a method of achieving abstraction, usually (but not necessarily) between lower-level and higher-level software. One of the primary purposes of an API is to provide a set of commonly-used functions—for example, to draw windows or icons on the screen. Programmers can then take advantage of the API by making use of its functionality, saving them the task of programming everything from scratch. APIs themselves are abstract: software which provides a certain API is often called the implementation of that API. For example, one may look at the task of writing "Hello World" on a screen at increasing levels
Internationalizing Domain Names in Applications
at 2008-04-28 02:49:00
domain names cannot be handled by the DNS, and must therefore be converted to a suitable form by web browsers and other user applications; IDNA specifies how this conversion is to be done. ICANN has issued guidelines for the use of IDNA, and it is already possible to register .jp domains using this system. Other top-level domain registries are intending to start accepting registrations in 2004. An IDNA-enabled application is able to convert between the ASCII and non-ASCII representations of a domain, using the ASCII form in cases where it is needed (such as for DNS lookup), but being able to present the more readable non-ASCII form to users. Applications that do not support IDNA will not be able to handle domain names with non-ASCII characters, but will still be able
Web application
at 2008-04-28 02:49:00
Web application An application delivered to end users via the World Wide Web. Web applications are popular due to the ubiquity of the web browser as an application client, and also because they can be updated without requiring a redistribution of software (e.g., the company producing the application does not have to redistribute a CD ROM). Though many variations are possible, a web application is commonly structured as a three-tiered application. In its most common form, a web browser is the first tier, an engine created using some dynamic web content technology (e.g., CGI, PHP, or Java servlets) is the middle tier, and a database is the third tier. The web browser sends requests to the middle tier, which services them by making queries and updates
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