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Web-Based Tool and Why

Web-Based Tool and Why. Cross Platform Support Multi-User No special software to install… just a browser Offload real work to server No worrying about versions of data/software Integrated GIS capabilities Potential for wide range of users… public<->modelers

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Web-Based Tool and Why

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  1. Web-Based Tool and Why • Cross Platform Support • Multi-User • No special software to install… just a browser • Offload real work to server • No worrying about versions of data/software • Integrated GIS capabilities • Potential for wide range of users… • public<->modelers • Utilizing Open Source Software • Reduce Cost • Increase transportability

  2. Reduced Expense for Tight Budgets Software Expense Contracting/ Development Deployment and Hosting ???? (Flexibility) Standards Based – Transparent Development Standards Focused Open Development Community Building ???? (Flexibility) Common Workflows Fit Well With OS GIS Tools Data Collection Model Integration Web-Based DST’s ???? (Flexibility)

  3. Explaining the Stack OS GIS Web Apps Mapserver, OpenLayers, etc. OS GIS Desktop Apps QGIS, GRASS, etc. OS GIS Base Tools (GDAL, OGR, PostGIS, etc.) OS Base Tools (Apache, Compilers, etc.) OS Core (Linux)

  4. Users Modify Parameters Request Sent to Server Server Processes Request Results Populated In Database Results are spatially joined Maps and Data are Returned Users Visualize Results What We Have Done TISEC DSS Web

  5. Simplified IDSS Architecture USER USER User Interface (ExtJS and Open Layers) Internet User Interface Layer Web Server (Apache) Map Server Framework (Django) Process Layer Tidal power calculations Module GIS Mapping & query tools (Mapserver) Data Layer Database (PostGIS) & File Server (Linux)

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