Abstract and learning goals of Mike Surace: Validation of multiplex panels can mean a variety of different things. In this webinar, Michael Surace will review the factors which determine how stringent a validation should be, including the assay, the platform, the signal of interest, the reference signal, the degree of precision/ dimensions/ depth required in the analysis, the application, the purpose, the context, and the criteria for success. The standard development workflow for a 6-plex panel will be dissected and described in detail, and the critical components of the low plex validation, including development tasks, pressure tests, and the formal validation will be redeployed in a manner appropriate for a 40 plex iterative mIF assay, including caveats, potential artifacts, and criteria for success.