Digital rights management (DRM) schemes are various access control technologies that are used to restrict usage of proprietary hardware and copyrighted works.

DRM technologies try to control the use, modification, and distribution of copyrighted works (such as software and multimedia content), as well as systems within devices that enforce these policies.

Post-production, or postproduction, is part of the process of filmmaking, video production, and photography.

It occurs in the making of motion pictures, television programs, radio programs, advertising, audio recordings, photography, and digital art.

It is a term for all stages of production occurring after shooting or recording individual program segments.

Computer software, or simply software, is that part of a computer system that consists of data or computer instructions, in contrast to the physical hardware from which the system is built.

In computer science and software engineering, computer software is all information processed by computer systems, programs and data.

Computer software includes computer programs, libraries and related non-executable data, such as online documentation or digital media.

Computer hardware and software require each other and neither can be realistically used on its own.

Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content.

Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand-produced material.

In marketing, a product is anything that can be offered to a market that might satisfy a want or need.

In retailing, products are called merchandise.

In manufacturing, products are bought as raw materials and sold as finished goods.

A service is another common product type.