Abstract: Systems and techniques for integrating information for the planning and performance of maintenance activities are described. In one aspect, a method includes receiving a collection of descriptions of maintenance tasks in an enterprise, accessing one or more data stores to receive asset information characterizing assets in the enterprise, process information characterizing assets involved in processes of the enterprise, and process value information characterizing values of the processes to the enterprise, integrating the asset information, the process information, and the process value information to assign costs associated with performance of each of the maintenance tasks, generating a work list including a subset of the collection of maintenance tasks based on the assigned costs, and making the work list available over one or more output devices.

Abstract: Systems and techniques by which content and presentation players can communicate are described. In one aspect, presentation system for rendering a presentation for a user includes one or more output devices, a presentation including machine-readable descriptions of content and a service request triggering mechanism to trigger a service request, and a presentation player configured to generate a rendition of the presentation at one or more output devices and to respond to the service request with a service response to populate the rendition of the presentation. The service response includes at least one of information characterizing an arrangement of content in the presentation and information characterizing prior navigation of the user through the content of the presentation. The presentation further includes extraction logic to extract relevant information from a response to the service request for addition to the rendition of the presentation.

Abstract: Detecting concurrent changes in data includes storing a first version of data and first metadata corresponding thereto, receiving a second version of data and second metadata corresponding thereto, and determining whether the first version of data is the same as the second version of data using the first and second metadata. If the first version of data is not the same as the second version, a concurrency resolution process is initiated to resolve inconsistencies in data between the first version and the second version. The concurrency resolution process produces consolidated changes based on the first version and the second version.