Ad hoc Testing is done after the completion of the formal testing on the application or product. To do ad-hoc test, a tester must first analyze the application’s security and user-perceptible features. A well-informed tester must also understand an application’s architecture and if not familiar with an application, then the process of building it can be time consuming. Therefore a Ad hoc Testing may be suitable for organization like those that have small groups of agile testers, security experts or developers who are able to meet often or whenever required