The front end would allow the user to manipulate and fetch data. Web Application : These applications 3 —tier usually developed in Internet. These have a browser, a web server and a database. The Database servers would be oracle, sql server, mysql etc. Almost every tester is working in one of the category like Desktop application, Client Server application or Web Application Testing. Please tell us on which category you are working on and share your experience in comment below. Also please share this article with your friends if you think they should know.
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Software Testing Class. STC Admin September 22, Very well explained. Please share the information on three tier architecture. Thanks in advance Gauri Reply. The purpose of integration testing is to verify functionality, performance, and reliability. There are different types of integration testing models. For example, the Big Bang model is a time saver by combining unit-tested modules to form an entire software program or a significant part of one.
However, record of test case results is of the essence, otherwise further testing will be very complicated. Bottom up integrated testing tests all the low, user level modules, functions and procedures.
Once these have been integrated and tested, the next level of modules can be integrated an tested. All modules at each level must be operating at the same level for this type of testing to be worthwhile. In object-oriented programming, of which client server applications increasingly are, classes are encapsulations of data attributes and functions. Classes require the integration of methods. Ultimately, integration testing reveals any inconsistencies within or between assemblages or the groupings of modules that are integrated through testing plans and outputs.
System testing is the final layer of software testing. It is conducted once the system has been integrated. Like integration testing, it falls within the category of black box testing. Its input is the integrated software elements that have passed integration testing and the integration of the software system with any hardware systems it may apply to.
System testing detects inconsistencies between assemblages thereby testing integration and in the system as its own entity. System testing is the final testing front and therefore the most aggressive. It runs the system to the point of failure and is characterized as destructive testing. Here are some of the areas system testing covers: usability, reliability, maintenance, recover, compatibility, and performance. Many More Articles on Types of Testing. He is M. Honours and is a part of the STG team since inception.
See author's posts. Sharing is caring. UI Testing: User interface testing is the testing of the interfaces through the user operates the client system to send requests to the server system.
For example in a web-based application, the forms, hyperlinks, buttons, text boxes, radio buttons, checkboxes, etc. All UI elements which are to be displayed on the web page, what elements are mandatory or optional, etc. Security Testing : Security testing is conducted to evaluate how secured the client-server system is while authentication of the request.
The server should only send a response to the request which is authentic over the network. Browser Compatibility Testing : Browser compatibility testing is done for the web-based applications to make sure that different browsers operate in a similar manner as desired from the application. It should not happen that UI elements that are working on Firefox are not visible or disabled on Chrome. Tools like Sahi, Selenium along with Fitnesse can be used to conduct such testing.
Storage and Data Volume Testing: Volume testing is non-functional testing that aims at testing the load capabilities of the system. Below is a detailed summary of the load or stress testing. Performance Testing : Performance testing is the testing process by which we determine the throughput or effectiveness of a client-server system in a computer network. It also usually requires loading the application on each client machine. The browser-centric application style offers an alternative to this traditional problem.
The web browser provides a universal client that offers users a consistent and familiar user interface. Using a browser, a user can launch many types of applications and view many types of documents. This can be accomplished on different operating systems and is independent of where the applications or documents reside. Direct supplier-to-customer relationships. Richer documents. Netcentric technologies such as HTML, documents, plug-ins, and Java and standardization of media information formats enable support for complex documents, applications and even nondiscrete data types such as audio and video.
Application version checking and dynamic update. Netcentric computing can checking and update application versions dynamically. In both cases, there is a distribution of presentation services, application code, and data across clients and servers.
In both cases, there is a networking protocol that is used for communication between clients and servers. In both cases, they support a style of computing where processes on different machines communicate using messages. Server processes respond to messages from clients. Viewed conceptually, the layers are presentation, process, and database. Viewed physically, the layers are server, client, middleware, and network.
Nearly all of the processing happens on the client, and client accesses the database directly rather than through any middleware. In this model, all of the presentation logic and the business logic are implemented as processes on the client. Hence, it is the simplest one to test. Direct access to the database makes it simpler to verify the test results. The disadvantage of this model is the limit of the scalability and difficulties for maintenance.
This kind of model is known as modified 2-tiered architecture. In terms of software testing, modified 2-tiered architecture is more complex than 2-tiered architecture for the following reasons: It is difficult to create a direct test of the business logic. Special tools are required to implement and verify the tests. Another complication is dynamic database queries. They are constructed by the application and exist only when the program needs them.
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