Thank you for participating in this SDSU/NASA project. This web site ( is used to develop web-based geospatial information services for the purpose of natural habitat conservation and management. Three distinct web service functions are integrated into the prototype, an on-line data warehouse is developed for archiving, accessing and downloading GIS databases and remotely sensed imagery, multiple internet map servers are established to provide web-based map function capabilities, Java-based on-line analytical tools are implemented for high resolution imagery visualization, comparison, analysis and improved interpretation of change detection. To better serve you walk-through the web site, two tutorials are created as follow links  Tutorial 1 (649k), Tutorial 2 (1180k).

We are seeking input from professionals such as yourself, to help us refine these on-line tools and web user interfaces. Your comments and insights are valued and important to us, and this project will be benefit from evaluation by experts like you. Thank you for participating.


Part 1.  Data Warehouse
1.     Please rank the following tasks of data warehouse services to indicate the importance to your job.  
Very Important Important Not Important N/A
1) View the thumbnail images. 
2) View the metadata descriptions.
3) Download the image/data sets
4) Search/Query data set.
2.      What do you like and do not like the data warehouse? ( Please specify in functions, user interfaces, data contents or others? )
3.      Are you satisfied with the web-based data warehousing? can you successfully search and retrieve the geo-spatial data sets? Do they provide enough information you want?


Part 2.  Internet Map Server


1.    What do you like or dislike the interactive map? (functions/user interfaces/data contents/others?)
2.    Do you like the performance of web-based software ArcIMS? What is the advantage and disadvantage of ArcIMS for web mapping facilities?
3.    From your own experience, what are the differences between traditional GIS ( such as ArcView and ArcGIS ) and web-based GIS ( ArcIMS )?
Part 3.  On-line Analytical Tools

 1.      Current prototype web site hosts eight on-line analytical tools listed below.  Please rank the usability of these tools.  
Excellent Very Good Good Fair Poor
1) Image Overlay 
2) Image Swipe 
3) Image Magnifier
4) Image Comparison
5) Image Viewing
6) Image Processing
7) Image Filtering
8) Panoramic Image 

 2.   Which on-line analytical tool do you prefer most, which one least prefer? Why? What is the limitation and improvement for these toolkits (functions/user interfaces/data contents/others)?

3.    How well do you consider to adopt these web-based analytical tools for remotely sensed imagery in tracking natural habitat conditions and status of preserves?

4.    How well are you able to visually interpret the change of land cover on the two change detection products (image overlay and image swipe)? 

5.    Can you think of any functions that are missing in the on-line analytical tools?
Part 4.  General


1.    Please provide your comments on overall performance, information contents, design and the structure of this web site.

2.    How well do you feel the Internet as a tool for transaction with geo-spatial information? Do you think that the prototype and Internet in particular will alter and substitute the traditional approach for transferring large quantities of data to the targeted users?

3.    Will you consider that the web-based analytical toolkits developed by this prototype have potential value for the purpose of your organization, will they be cost-effective tools to monitor natural habitats and reduce the labor of field monitoring? 

4.    Are you currently using any web-based GIS products? If yes, how well do you like it compared with the tools developed by this prototype?
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Thank You for completing this survey. We look forward to serving you in the future.




Updated July 31, 2002