Entities

An organization engaged in the production, distribution and/or sale of goods or services in order to satisfy customer requirements and make a profit.

The complex of climatic, soil and biotic factors that act upon an organism or ecological community and ultimately determine its form and survival. [NALT]

A statement or other indication of policy or procedure by which to determine a course of action

Data in a context which gives it meaning; any statement or estimate of fact or opinion, regardless of form or format ... includes data, text, spreadsheets, graphics, pictures, voice and video. [NALT]

The aggregation of data to make coherent observations about the world, meaningful data, or data arranged or interpreted in a way to provide meaning.[AGROVOC]

The rules and organizing principles gleaned from aggregated data. The internalized or understood information that can be used to make decisions

Regulations: A law, rule, or other order prescribed by authority, esp. to regulate conduct.

A hypothetical construct of economic theory representing the place all potential buyers and sellers of all goods and services come together, express their desires and offer their wares, through bargaining establish a price structure and production schedule, and complete their transactions. In standard usage it refers to all locations where economic transactions occur treated as a single whole. 

Source: Schwarz, Charles F.; Thor, Edward C.; Elsner, Gary H. 1976. Wildland planning glossary. Gen. Tech. Rep. PSW-13. Berkeley, Calif.: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station via NALT

A representation of the relationships that define a situation under study. A model may be a set of mathematical equations, a computer program, or any other type of representation, ranging from verbal statements to physical objects.

A network is a collection of actors or nodes and the links or relationships between them.