Blog Matrix achievement for Supported Employment services Our Supported Employment services in Trafford, Hillingdon and Cornwall have been accredited with the matrix Standard. This national standard is for information, advice and guidance (IAG) providers and was developed by the Department for Education and Skills, and the Guidance Council. The matrix Standard is designed to help identify and follow best practice in the delivery of IAG. Achieving the standard shows that the services in question are helping individuals make the best use of information, explore issues and plan courses of action in relation to learning and work. James Dodd, web editor.