A mandatory phase of design and development of software as a medical devices (SaMD) for those who seek meet the certification requirements is to ensure that the individual components are integrated correctly and the system works as intended work together as intended. IPN’s support in this area includes: • Integration testing, performed after the unit testing to generate evidence that the product's individual modules are combined and tested as a group to ensure that all integrated elements cohesively function together. • System testing, typically conducted after integration testing and before acceptance testing (validation phase), to create evidence that the fully integrated solution operates as expected before reaching its end-user.