Concepts of the model include the following:

• Context: The setting in which a word or statement appears that determines its meaning.
• Domain: An ontology, influence, or activity. The subject area to which the user applies a program is the domain of the software.
• Model: A system of abstractions that describes selected aspects of a domain and can be used to solve problems related to that domain.
• Ubiquitous language: A language structured around the domain model and used by all team members to connect all the activities of the team with the software.