This class includes the writing, modifying, testing and supporting of software.

This class includes:
——designing the structure and content of, and/or writing the computer code necessary to create and implement: systems software (including updates and patches); software applications (including updates and patches); databases; web pages
——customizing of software, i.e. modifying and configuring an existing application so that it is functional within the clients’ information system environment

This class excludes:
——publishing packaged software, see 5820
——planning and designing computer systems that integrate computer hardware, software and communication technologies, even though providing software might be an integral part, see 6202