| Demand |
A demand entity represents the public, not necessarily binding, not necessarily exclusive, announcement by an organization or person to seek a certain type of goods or services. For describing dema... |
| Offer |
An offer to transfer some rights to an item or to provide a service — for example, an offer to sell tickets to an event, to rent the DVD of a movie, to stream a TV show over the internet, to repair... |
| ActionAccessSpecification |
A set of requirements that must be fulfilled in order to perform an Action. |