Controls over ‘data centre and network operations’ and ‘access security’ include those that:
prevent or detect errors during program execution, eg procedure manuals, job scheduling, training and supervision; all these prevent errors such as using wrong data files or wrong versions of production programs
prevent unauthorised amendments to data files, eg authorisation of jobs prior to processing, back up and physical protection of files and access controls such as passwords
ensure the continuity of operations, eg testing of back - up procedures, protection against fire and floods.