Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. Onium salts, oxime sulfonates and sulfonyloxyimides derived from these salts are effective photoacid generators in chemically amplified resist compositions. The networked device may be configured to generate a preliminary data andor a primary data associated with a user and automatically announce a sandbox-reachable service of the networked device to a discovery module.