What is the difference between client-server testing and web based testing ?

Projects are broadly divided into two types of:
2 tier applications
3 tier applications
CLIENT / SERVER TESTING
[a] This type of testing usually done for 2 tier applications (usually developed for LAN)Here we will be having front-end and backend.
The application launched on front-end will be having forms and reports which will be monitoring and manipulating data
Eg : applications developed in VB, VC++, Core Java, C, C++, D2K, PowerBuilder etc.,The backend for these applications would be MS Access, SQL Server, oracle, Sybase, mysql, quad base
The tests performed on these type of applications would be
- user interface testing
- manual support testing
- Functionality testing
- compatability testing & configuration testing
- intersystems testing
WEB TESTING
[b] This is done for 3 tier applications (developed for Internet / intranet / xtranet) Here we will be having Browser, web server and DB server.
The applications accessible in browser would be developed in HTML, DHTML, XML, JavaScript etc.,(we can monitor thru these applications)
Applications for the web server would be developed in Adv Java, ASP, JSP, VBScript, JavaScript, Perl, Cold Fusion, PHP etc.,
(all the manipulations are done on the web server with the help of these programs developed)
The DBserver would be having oracle, sql server, Sybase, mysql etc.,
(all data is stored in the database available on the DB server)
The tests performed on these type of applications would be
- user interface testing
- Functionality testing
- security testing
- browser compatability testing
- load / stress testing
- interoperability testing/intersystems testing
- storage and data volume testing
A web-application is a three tier application.
This has a browser (monitors data) [monitoring is done using html, dhtml, xml, JavaScript]-> web server (manipulates data) [ manipulations are done using programming languages or scripts like adv java, asp, jsp, vbscript, JavaScript, Perl, cold fusion, php] -> database server (stores data) [data storage and retrieval is done using databases like oracle, sql server, Sybase, mysql] .
The types of tests which can be applied on this type of applications are:
1. User interface testing for validation & user friendliness
2. Functionality testing to validate behaviors, I/p, error handling, o/p, manipulations, services levels, order of functionality, links, content of web page & backend coverage’s
3. Security testing
4. Browser compatibility
5. Load / stress testing
6. Interoperability testing
7. Storage & data volume testing
A client-server application is a two tier application.
This has forms & reporting at front-end (monitoring & manipulations are done) [using vb, vc++, core java, c, c++, d2k, power builder etc.,] -> database server at the backend [data storage & retrieval) [using ms access, sql server, oracle, Sybase, mysql, quad base etc.]
The tests performed on these applications would be
1. User interface testing
2. Manual support testing
3. Functionality testing
4. Compatibility testing
5. Intersystem testing
Desktop:
01. Application runs in single memory (Front end and Back end in one place)
02. Single user only
Client/Server:
01. Application runs in two or more machines
02. Application is a menu-driven
03. Connected mode (connection exists always until logout)
04. Limited number of users
05. Less number of network issues when compared to web app.
Web:
01. Application runs in two or more machines
02. URL-driven
03. Disconnected mode (state less)
04. Unlimited number of users
05. Many issues like hardware compatibility, browser compatibility, version compatibility, security issues, performance issues, etc
when we consider the security testing, both application should well secured to internal and external threat.
As per difference in both the applications come where, how to access the resources. In client server once connection is made it will be in state on connected, whereas in case of web testing http protocol is stateless, then there comes logic of cookies, which is not in client server.
More for client server users are well known, whereas for web any user can login and access the content, he/she will use it as per his intentions.
So, there are always issues of security and compatibility for web application