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|Definitionskos:definition||The recently published Underground Infrastructure Concept Development Study (UICDS) Engineering Report  examines the present state of underground infrastructure information (UGII), costs and benefits of that state, as well as future opportunities for an improved state. That report describes a number of candidate models for UGII and recommends a number of follow-on activities, including development of a prototype UGII integration model to support subsequent UGII integration and exchange initiatives. The present report describes the design and development of conceptual UGII integration model MUDDI (Model for Underground Data Definition and Interchange). The goal of MUDDI is not to replace existing models but to serve as the basis for integration of datasets from different models, at the levels of detail required to address application use cases described in . MUDDI as described here is a conceptual model which will serve as the basis for one or more conformant and interchangeable physical implementations such as GML (Geographic Markup Language) or SFS (Simple Features SQL). As a prototype model, the current version of MUDDI is also not intended to be final, but to serve as an input to the proposed OGC Underground Infrastructure Pilot and similar activities which will in turn serve to refine and improve the model through implementation and deployment in realistic application scenarios.|
|labellabel||Model for Underground Data Definition and Integration (MUDDI) Engineering Report|
|OGC document typedoctype||Public Engineering Report|