Abstract: A model is provided for managing resources in a programming environment. A first construct is triggered to update mutable entities in response to changes to related data associated with the mutable entities. In accordance with the updated mutable entities, at least one of a second construct and a third construct is triggered to respectively create a new mutable entity and update a data relationship.

Abstract: A method for managing dialogue interaction includes generating a hierarchical tree representation of a set of hierarchical data entities, and identifying a leaf node in the hierarchical tree representation. A system for managing dialogue interaction includes a hierarchical data format having a plurality of hierarchical data entities, and a dialogue interaction manager that manages a dialogue with a user based upon the hierarchical data format.

Abstract: A model is provided for managing resources in a programming environment. A first construct is triggered to update mutable entities in response to changes to related data associated with the mutable entities. In accordance with the updated mutable entities, at least one of a second construct and a third construct is triggered to respectively create a new mutable entity and update a data relationship.

Abstract: A system and method for managing resources includes providing mutable entities having related data including triples, and listening for changes in the related data. A first construct is triggered in accordance with the changes in the related data to update the mutable entities.

Abstract: A reactor and method configured to maintain data consistency. The reactor includes an inbox configured to receive update information. An apply operation is configured to apply the update information to a prestate to determine a stimulus state based on the update information. A response state is derived in accordance with the stimulus state. The response state is an only state externally visible from the reactor.

Abstract: A system and method for managing resources includes providing mutable entities having related data including triples, and listening for changes in the related data. A first construct is triggered in accordance with the changes in the related data to update the mutable entities.

Abstract: Current corporate purchasing procedures are labor-intensive and therefore costly. The system enables an employee who needs an item which must be ordered from a supplier to select the item from an electronic catalog displayed on a personal computer and submit an order for approval and processing directly, by-passing both the normal paper approvals and the manual verification of the order by the organization's Purchasing department. It achieves this by means of an electronic catalog accessible from the employee's own personal computer, and a computer network and associated services linking the enterprise to one or more suppliers.