What are the diff types of integration testing?
Answer Posted / bhanu
Big Bang
In this approach, all or most of the developed modules are coupled together to form a complete software system or major part of the system and then used for integration testing. The Big Bang method is very effective for saving time in the integration testing process. However, if the test cases and their results are not recorded properly, the entire integration process will be more complicated and may prevent the testing team from achieving the goal of integration testing.
A type of Big Bang Integration testing is called Usage Model testing. Usage Model testing can be used in both software and hardware integration testing. The basis behind this type of integration testing is to run user-like workloads in integrated user-like environments. In doing the testing in this manner, the environment is proofed, while the individual components are proofed indirectly through their use. Usage Model testing takes an optimistic approach to testing, because it expects to have few problems with the individual components. The strategy relies heavily on the component developers to do the isolated unit testing for their product. The goal of the strategy is to avoid redoing the testing done by the developers, and instead flesh out problems caused by the interaction of the components in the environment. For integration testing, Usage Model testing can be more efficient and provides better test coverage than traditional focused functional integration testing. To be more efficient and accurate, care must be used in defining the user-like workloads for creating realistic scenarios in exercising the environment. This gives that the integrated environment will work as expected for the target customers.
[edit]Top-down and Bottom-up
Main article: Top-down and bottom-up design
Bottom Up Testing is an approach to integrated testing where the lowest level components are tested first, then used to facilitate the testing of higher level components. The process is repeated until the component at the top of the hierarchy is tested.
All the bottom or low-level modules, procedures or functions are integrated and then tested. After the integration testing of lower level integrated modules, the next level of modules will be formed and can be used for integration testing. This approach is helpful only when all or most of the modules of the same development level are ready. This method also helps to determine the levels of software developed and makes it easier to report testing progress in the form of a percentage.
Top Down Testing is an approach to integrated testing where the top integrated modules are tested and the branch of the module is tested step by step until the end of the related module.
Sandwich Testing is an approach to combine top down testing with bottom up testing.
The main advantage of the Bottom-Up approach is that bugs are more easily found. With Top-Down, it is easier to find a missing branch link.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
could u pls anyone tel me .."which is the best instute that provides eficient practical knowledge and also real-time oriented knowldge to do a project in manual and automation testing..in hyd" pls send me to dis mail-id if u find any..? sinducute17@gmail.com
What is white box testing, and what are the various techniques?
What is smoke testing and what is sanity?
Can you please explain me how to do testing of an E-insurance project end to end process..
what are the testing appraoch that you have tested for Bread toaster
Define Stability, Scalability and reliability with example ?
What are the main key components in web applications and client and server applications?
What is a top-down and bottom-up approach in testing?
What is defect removable efficiency?
Hi I am searching job please send some details abuot ERP project and real time test plan,traceability report,test case if any relate to erp project Please help me out to get a job in testing.my email address is chiku_69@yahoo.in Thank u
What is Web testing & which action we take at the time of Web Testing?
In a systen design to work out the tax to be paid: An employee has Rs 4000 of salary tax free. the next Rs 1500 is taxed at 10% , the next Rs 28000 is taxed at 22% , any further amount is taxed at 40% , the nearest whole Rs, which of these is a valid boundary value analysis test case ???? a)Rs 1500 b)Rs 32001 c)Rs 33501 d) Rs 28000.
What is known as data-driven testing?
please send me database stored procedure checklist.
hi, I m looking for a career in manual web testing. so PLZ anybody who have the practical knowledge of dis field help me. GIVE ME UR MAIL ID so that i can ask regarding some doubts. my MAIL ID is ankurtester819@gmail.com