Dynamic object-oriented architecture approach to ecosystem modeling and211 simulation

摘要

Modeling and simulation in support of adaptive ecosystem management can be better211u001eaccomplished through a dynamic, integrated, and flexible approach that 211u001eincorporates scientific and technological components into a comprehensive 211u001eecosystem-modeling framework. The Integrated Dynamic Landscape Analysis and 211u001eModeling System (IDLAMS) integrates ecological models and decision support 211u001etechniques, through a geographic information system (GIS)-based framework. The 211u001eStrategic Environmental Research and Development Program (SERDP) sponsored the 211u001edevelopment of IDLAMS. Initially built upon a GIS framework, IDLAMS is migrating 211u001eto an object-oriented (OO) architectural framework. An object-oriented 211u001earchitecture is more flexible and modular. It allows disparate applications and 211u001edynamic models to be integrated in a manner that minimizes (or eliminates) the 211u001eneed to rework or recreate the system as new models are added to the suite. In 211u001eaddition, an object-oriented design makes it easier to provide run-time feedback 211u001eamong models, thereby making it a more dynamic tool for exploring and providing 211u001einsight into the interactions among ecosystem processes. Finally, an object-211u001eoriented design encourages the reuse of existing technology because OO-IDLAMS is 211u001eable to integrate disparate models, databases, or applications executed in their 211u001enative languages. Reuse is also accomplished through a structured approach to 211u001ebuilding a consistent and reusable object library. This reusability can 211u001esubstantially reduce the time and effort needed to develop future integrated 211u001eecosystem simulations.