what is system testing?

Question

could any one tel how can i explain, if they ask wht s complete system testing? and how can i do tht? explain with example.

Answer 1

System Testing is a part of Software Testing.



System testing of software is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements. System testing falls within the scope of black box testing, and as such, should require no knowledge of the inner design or logic.



System testing takes, as its input, all of the "integrated" software components that have successfully passed integration testing and also the software system itself integrated with any applicable hardware systems. The integration testing detects any inconsistencies between the software units that are integrated together. System testing is a more limiting type of testing; it seeks to detect defects both within the "inter-assemblages" and also within the system as a whole.

System testing is actually done to the entire system against the System Requirement Specification (SRS). Moreover, the system testing is an investigatory testing phase, where the focus is to have almost a destructive attitude and test not only the design, but also the behaviour and even the believed expectations of the customer. It is also intended to test up to and beyond the bounds defined in the software/hardware requirements specifications.



Ex. Maintainance Testing, regression Testing, Recovery Testing and Ad Hoc Testing.

Answer 2

The System Integration Testing is a testing process that shakes down source code developed and fixes any variance before proceeding to the next testing phase. To complete (or exit) SIT, there must be fewer variances than can be tolerated.



The system integration process mainly depends on (a) a formal methodology that leads to an efficient integration testing plan, and (b) a consistency checking mechanism that validates the module subsystem interfaces and intermodule interactions during all the changes of the integration testing process.



http://www.aglaglobal.com/

Answer 3

The term System Testing can be used in a number of ways. In a general sense, the term 'system testing' refers to the testing of the system in artificial conditions to ensure that it should perform as expected and as required.



From a Systems Development perspective, System Testing refers to the testing performed by the development team (the programmers and other technicians) to ensure that the system works module by module ('unit testing') and also as a whole. System Testing should ensure that each function of the system works as expected and that any errors (bugs) are noted and analysed. It should additionally ensure that interfaces for export and import routines, function as required. System Testing does not concern itself with the functionality of the system and whether this is appropriate to meet the needs of the users. Having met the criteria of the Test Plan the software may then be passed for User Acceptance Testing.



Try this answer too....(A detailed description)

http://en.wikipedia.org/wiki/System_testing

Answer 4

ystem testing is actually a series of different tests whose sole purpose is to exercise the full computer based system.



System testing falls under the black box testing category of software testing. White box testing is the testing of the internal workings or code of a software application. In contrast, black box or system testing is the opposite.System testing involves the external workings of the software from the user's perspective.

ystem testing involves testing the software code for following



Testing the fully integrated applications including external peripherals in order to check how components interact with one another and with the system as a whole. This is also called End to End scenario testing..

Verify thorough testing of every input in the application to check for desired outputs.

Testing of the user's experience with the application. .





That is a very basic description of what is involved in system testing. You need to build detailed test cases and test suites that test each aspect of the application as seen from the outside without looking at the actual source code.

http://www.softwaretesting-certification.com/

Answer 5

System Integration Testing (SIT) ensures that individual modules, product set-ups, batch operations, basic reporting functionality and key interfaces of an application-under-test (AUT) work well.



SIT determines the degree of conformance of an AUT with the Functional Specifications Document / Technical Specifications Document.



SIT covers:

Critical field and screen level, Functional flow and Report format validations

Workflows and alerts

Integration between core application to non-core applications

Mapping configurations and parameters between production and test environments

Syncing of core system database with all peripheral systems



Reference:- Maveric Systems