The Two Sides of Black Box Testing
Black box testing or functional testing, as most software designers call it, is a strategy for testing software. The strategy uses an approach in which the tester does not know the internal mechanism or algorithms in the software. The software tester only provides the input and anticipates the results. He does not necessarily know how the program works. Rather, his primary focus is on the specifications and not the programming code. The black box technique encompasses 13 chronological subtests. These include UAT, function testing, alpha testing, beta testing, volume testing, exploratory testing, stress testing, usability testing, recovery testing, ad-hoc testing, system testing, load testing, and sanity testing.
The other terms for black box are behavioral testing, opaque testing, and closed box testing. The software developers initiate this investigation to check whether the application meets the requirements of the client. Checking software integrity separates the abnormalities of the system from the workable ones. It is both a win-win solution for the developer and the client, especially in maintaining quality control.
These days, clients and software engineers find great help in taking advantage of third party software testers. These investigative groups are independent and have no connection with any software developing companies. Their work is to assure the quality, integrity, robustness, relevance, cost effectivity, and user friendliness of the program. They do not necessarily have to learn about the syntactic and semantic side of the application. This approach, thus, makes software checking more credible, as opposed to software engineers making in-house testing.
The job of third party software checkers is not that easy. Although clients do not require them to learn program coding, they, however, need to study the specs of the software. They will need to input as much realistic information as possible and compare the results to the main objectives of the program. Basically, the job of a software checker is to find loopholes or weakness in the software.
Despite the obvious benefit of opting for independent software testers, the black box strategy still has its share of disadvantages. One of which is that it is not partial since the tester and the designer do not know each other. Thus, it may entail redundancy, especially if the software developer already made some dry runs. It is also true that clients can save time and money since third party testers do not have to learn the syntax of the program. However, this may cause the test cases to become more complex for the tester to check and the designer to make. Nevertheless, third party testers can actually make dry runs after a certain module or segment of the program is complete.
The most important thing about black box software testing is that it takes its stand from the user’s viewpoint. After all, the end-user will benefit from the program’s user friendliness, program instruction readability, and command comprehension.
Yet, no matter how thorough and intensive the testing is, sample data entries can become unrealistic. In fact, nothing really beats testing the software in actual setting. Nevertheless, everyone gets the idea. Black box testing benefits software engineers by making their programs more reliable and clients by saving bucks.
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