Poster. We highlight the latest developments in the Argos project. First, we describe our approach to automatic workflow composition. Second, we discuss the validation of the freight estimation workflow. Third, we discuss some extensions of the model to residential land value analysis. Categories and Subject Descriptors H.3.5 [Information Storage and Retrieval]: Online Information Services—Web-based services; H.2.5 [Information Systems]: Database Management—Heterogeneous Databases Keywords Web Service Composition, Information Integration, Workflow, Transportation, Real Estate.