The test pyramid is a great model for designing your test portfolio. However, the bottom tends to fall out when you shift from progression testing to regression testing. The tests start failing, eroding the number of working unit tests at the base of your pyramid. If you don't have the development resources required for continuous unit test maintenance, there are still things you can do.

In this interview, Janna Loeffler, senior manager of experience quality standards at Carnival Corporation, discusses new technology being implemented on Carnival Cruise Lines to facilitate payments and security. She details the testing challenges of implementing this device.