In the early 2000s, object-oriented technology was viewed in the commercial avionics space as novel  and unproven .  Around that time the Certification Authorities Software Team (CAST) published papers (CAST 4 and 8 in 2000 and 2002) to enumerate concerns and limitations.    

​ As DO-178B was updated to DO-178C it was decided that these concerns, vulnerabilities, and subsequent additional objectives associated with object - oriented technologies would be addressed not by the original standard but rather a supplement, DO-332   “ Object-Oriented Technology and Related Techniques Supplement to DO-178C and DO-278A ” .   This supplement describes concepts and key features of object-or iented  technologies and  related  techniques , discusses their impact on  the planning, development, and verification processes, and enumerates  their  vulnerabilities.