The client-server architecture is the most basic model for describing the relationship between the cooperating programs in a web application.
The two parts of a client-server architecture are:
Definition (Web Application)
A web application is accessed by users over a network, uses a browser as the client, and consists of a collection of client- and server-side scripts, HTML pages, and other resources that may be spread across multiple servers. The application itself is accessed by users via a specific path within a web server, e.g., www.amazon.com.
Ex. Webmail, online retail stores, online banks, online auctions, wikis, blogs, document storage, etc.
There’s a bit more to it:
Network –
The Internet, a global system of interconnected computer networks. Uses the standard Internet protocol suite (TCP/IP).
Web (World Wide Web) –
A system of interlinked documents (web pages) accessed via the Internet using HTTP.
Web pages contain hypermedia: text, graphics, images, video and other multimedia, along with hyperlinks to other web pages.
Hyperlinks give the Web its structure.
The structure of the Web is what makes it useful and gives it value.
Advantages —
Ubiquity and convenience of using a web browser as a client.
Inherent cross-platform compatibility.
Ability to update and maintain web applications without distributing and installing software on potentially thousands of client computers.
Reduction in IT costs.
Disadvantages —
User experience not as good as standalone (workstation/PC) applications — increasingly not the case.
Privacy and security issues associated with your data.
From a developer’s perspective, difficult to develop and debug — there are a lot of moving parts!
The two parts of a client-server architecture are:
- Server component – “listens” for request, and provides services and/or resources accordingly.
- Client component – establishes a connection to the server, and requests services and/or resources from it.
Definition (Web Application)
A web application is accessed by users over a network, uses a browser as the client, and consists of a collection of client- and server-side scripts, HTML pages, and other resources that may be spread across multiple servers. The application itself is accessed by users via a specific path within a web server, e.g., www.amazon.com.
Ex. Webmail, online retail stores, online banks, online auctions, wikis, blogs, document storage, etc.
There’s a bit more to it:
Network –
The Internet, a global system of interconnected computer networks. Uses the standard Internet protocol suite (TCP/IP).
Web (World Wide Web) –
A system of interlinked documents (web pages) accessed via the Internet using HTTP.
Web pages contain hypermedia: text, graphics, images, video and other multimedia, along with hyperlinks to other web pages.
Hyperlinks give the Web its structure.
The structure of the Web is what makes it useful and gives it value.
Advantages —
Ubiquity and convenience of using a web browser as a client.
Inherent cross-platform compatibility.
Ability to update and maintain web applications without distributing and installing software on potentially thousands of client computers.
Reduction in IT costs.
Disadvantages —
User experience not as good as standalone (workstation/PC) applications — increasingly not the case.
Privacy and security issues associated with your data.
From a developer’s perspective, difficult to develop and debug — there are a lot of moving parts!
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