Title

Design and Implementation of a Simple Model Interface for Component Based Modeling

Document Type

Article

Journal/Book Title/Conference

AGU Fall Meeting Abstracts

Volume

1

Publication Date

1-1-2008

First Page

961

Last Page

961

Abstract

Component based architectures offer an alternative approach for building large, complex hydrologic modeling systems. In contrast to more traditional coding structures (i.e. sequential and modular modeling approaches), component-based modeling allows individuals to construct autonomous computational units that can be linked together through the exchange of shared boundary conditions during run-time. One of the challenges in component-based modeling is designing simple yet robust component interface definitions that allow hydrologic processes to be quickly incorporated into a modeling system. In this study we address this challenge by presenting a new interface design that simplifies the process of implementing the Open Modeling Interface (OpenMI). A component is created by (1) authoring an xml-based configuration file that defines the component's core properties and (2) creating a class that implements the newly defined interface and its three methods: initialize, perform time step, and finish. We will present this approach for creating components and demonstrate how it can be used to create a hydrologic model.

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