A knowledge product is an artifact of information — a kind of persistent retention of the knowledge of one or more individuals. Knowledge products differ from other artifacts in that their relevant and useful aspects reside primarily in the content that can be extracted from them, and as such any physical manifestation thereof is usually at best a carrier medium.

Examples of knowledge products include:

Of these, software is unique, as it is said to have behaviour. More specifically, it instills behaviour in computers when it is executed by them, causing tangible effects in the real world.