Status Report for 07/03/2007

TENTATIVE OUTLINE OF MY REARCH WORK :

Title:
Semantic-coupling of Data and Computation Grid Sources in GIS

1. Introduction

2. Background and Definitions
............-GIS (Geographic Information Systems)
............-Web Services (GIS Web Services)
............-Geospatial Standards
........................o OGC, ISO/TC-211
............-General Data Types
........................o vector data and raster data
........................o and standard common data model -GML
3. Coupling data and computation grid sources in GIS
............-Architecture
............-3layer structured display
............-Components and their interactions
............-Inter-service communications
............-Autonomic capability upgrade
............-Components chaining through capability metadata
............-Sci-Plotting Service
............-Motivating use cases
........................o IEISS
........................o ServoGRID geo-science applications (PI and VC)
4. Making the system internally semantic
............-Using OGC standards for
........................ o WMS and WFS
........................ o Capability metadata (RDF and WSDL like structure)
............-Common data model (GML)
............-Common service descriptions and interfaces
5. Adapting third party heterogeneous data sources semantically
............-Making the heterogeneous data and services compatible
............-Horizontal mediation
......................o Heterogeneous communication protocols
...................... o Enabling inter-service communication among
................................. - The Gris-enabled vs Non-Grid OGC services
.................................- SOAP vs HTTP-GET/POST
............-Vertical mediation (data heterogeneity)
......................o Enable integration of third party data
......................o WFS-based mediation
................................ -XLink-WFS
6. Extending the system with quality of services
............-Interactive decision making tools
........................o portal and browser based user interfaces
........................o comprehensible data display (maps composed of layers)
........................o interactive data querying
....................................... through three-layer structured display
........................o enabling application based grouping of data sets
........................o AJAX + GIS Web Services Integration framework
............-Time-series data animations (map animations)
............-Streaming map movies architectures
7. Performance issues for large scale geo-science applications
............-Data transfer (between WFS and WMS)
........................o streaming
........................o load balancing -through service capability metadata
....................................query decomposition and results composition
............-Data handling (semi-structured common data model -GML):
........................o Parsing (in WMs)
....................................o pull parsing
........................o Rendering and handling large scale data
....................................o caching + prefetching
8. Performance Tests
9. Contributions
10. Future Work