About This Tutorial
The SEDRIS DRM provides a common representation model to allow users both to specify their own environmental data unambiguously, and to understand others' data clearly. The DRM specifies a set of classes, including the formal relationships between them and applicable constraints, thus ensuring that the syntax and structural semantics of the data are fully expressed and correctly understood by users. This tutorial provides a complete introduction to the SEDRIS DRM. It includes: a review of the notation used; the DRM organization and usage with sample applications; how the DRM utilizes the Environmental Data Coding Specification (EDCS) and the Spatial Reference Model (SRM); and a description of key concepts as represented by DRM classes, such as metadata, libraries, topology, point-sampled and grid data, organizational schemes, attributes, features, and geometry.
Environmental modelers interested in using SEDRIS, software engineers who plan to implement applications based on SEDRIS technologies, and those interested in gaining a better appreciation for the most fundamental SEDRIS technology, the DRM.
Prior knowledge of object-oriented design and key issues in representation of environmental data is strongly recommended. Prior attendance at either the "Introduction to SEDRIS for Managers" or the "Fundamentally SEDRIS: The Technology Components" tutorial is recommended.
At completion, the attendee will be able to read and understand the DRM, the rules defined and imposed by the DRM, the use of the EDCS and SRM, and the use and organization of the data classes in the DRM.