Abstract: The present disclosure describes various embodiments of extensible information systems and methods. One such system comprises a user interface configured to receive a query that includes a description of a research goal of a user; a reasoner configured to receive data from the user interface related to a user goal and generate a description of a workflow that will address the user goal, based on information in a knowledge graph and a services registry; and a workflow manager configured to receive a workflow description from the reasoner and manage an execution of workflows by scheduling for execution one or more services that are identified in the knowledge graph and described in the services registry. Other systems and methods are also provided.