While developing the software product, Software Development Life Cycle (SDLC) checks functional and non functional user requirement. Following points clearly shows difference between black box testing vs white box testing
| S. No | Black Box Testing | White Box Testing |
| 1 | Black box testing is a method of software testing which is used to test software without knowing internal structure of program or design | White box testing is a method of software testing which is used to test software with knowing internal structure of program or design |
| 2 | To test black box testing, programming knowledge is not required | To test white box testing, programming knowledge is required |
| 3 | Implementation knowledge is not required | Implementation knowledge is required |
| 4 | Testers need not to be technically sound | Software developer or programmer need to be technically sound |
| 5 | Black box testing done by testers | White box testing done by software developer or programmer |
| 6 | It focus on functions | It focus on internal structure and design |
| 7 | It is based on behavior of the application | It is based on structure of the application |
| 8 | It is based on Software Requirement Specification documents | It is based on detail design documents |
| 9 | It is concern with validation of output rather than how it is produced | It is concern with validation of internal structure of items under consideration of output |
| 10 | It is performed later stage of execution | It is performed early stage of execution |
| 11 | It is also called as functional or closed testing | It is also called as structural or glass box or clear box or transparent testing |
| 12 | Examples -: Acceptance testing, System testing | Examples -: Unit testing, Integration testing |