กิจกรรมการจัดทำโปรแกรมคอมพิวเตอร์ตามวัตถุประสงค์ของผู้ใช้

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 p

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