information model that expresses knowledge in a computer interpretable structure
Note 1 to entry: A knowledge model consists of a number of expressions of facts about a concept, each of which expressions expresses something that can be the case. Those expressions should comply with the guidelines in this standard. A requirements model is a subtype of a knowledge model. It expresses what shall be the case in a particular context.
Note 2 to entry: Knowledge models typically define further subtypes of the concepts that are defined in this standard.
Information models are expressions of meaning in a formal language that is computer interpretable. 
1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search (accessed 4.10.21).