Trying to understand Software Design Verification … A QA’s takeaway on reading the General Principles of Software Validation for the first time. FDA gives guidance in the General Principles of Software Validation guidance document, but in general: Testing at different levels: units, integrated units, software complete Testing types: negative, combinatorial, fault injection, risk controls challenge, boundary, corner cases, stress,...Read More

What is CAPA?   Corrective and Preventive Action (CAPA) is a fundamental quality process for medical device manufacturers including SaMD.  From the regulations it is really not that complicated.   21 CFR 820.100 reads: (a) Each manufacturer shall establish and maintain procedures for implementing corrective and preventive action. The procedures shall include requirements for: (1)...Read More

A fundamental requirement for any controlled process is to have the documentation associated with the process to be “controlled.”  What do we mean by controlled?  Document control implies that one can distinguish one revision of a document from another revision.  It also implies that a particular revision is retrievable and unblemished – that is, five...Read More