Editing User access to satellite data

Jump to: navigation, search

Warning: You are not logged in.

Your IP address will be recorded in this page's edit history.
The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision Your text
Line 1: Line 1:
==Use Case AQ.SatelliteData.1.a==
 
 
 
==Purpose==
 
Earth Information Exchange
 
 
Access to satellite data using queries over a continuous space-time-parameter domain.
 
 
==Revision Information==
 
Version 0.1.a
 
 
Prepared by:
 
Rudolf Husar
 
Washington University
 
 
and
 
 
Stefan Falke
 
Washington University and
 
Northrop Grumman IT - TASC
 
 
created: February 26, 2007
 
 
Revision History
 
 
Modified by
 
<Modifier Name/Affil>,
 
<Date/time>,
 
<Brief Description>
 
 
==Use Case Identification==
 
 
===Use Case Designation===
 
 
AQ.SatelliteData.1.a
 
 
===Use Case Name===
 
Short name: Satellite data access
 
 
Long name: Air quality user-access to satellite data by space-time-parameter queries
 
 
==Use Case Definition==
 
 
The AQ cluster has a fundamental need for a set of CORE web services that allow meaningful user-access to satellite data. These services include:
 
The AQ cluster has a fundamental need for a set of CORE web services that allow meaningful user-access to satellite data. These services include:
 
* Data access by space-time-parameter query on granules  
 
* Data access by space-time-parameter query on granules  
Line 47: Line 5:
 
   
 
   
 
The proper chaining of these services results in a higher order service, WCS, that returns the requested satellite data for the BBOX, Time, Parameter. Not more not less. Such a WCS service was in fact used in the Web service chaining experiment. Extending that service to return numeric satellite data (not just images) is the goal.
 
The proper chaining of these services results in a higher order service, WCS, that returns the requested satellite data for the BBOX, Time, Parameter. Not more not less. Such a WCS service was in fact used in the Web service chaining experiment. Extending that service to return numeric satellite data (not just images) is the goal.
 
===Actors===
 
 
====Primary Actors====
 
 
Air quality analysts interested in using satellite data for assessing air pollution, comparing satellite and surface data, "ground-truthing" model results.
 
 
====Other Actors====
 
 
===Preconditions===
 
*1. Satellite data are available through open interfaces
 
*2. Data access service specifications, e.g. OGC Web Coverage Service (WCS), can be implemented by data provider or mediator
 
*3.
 
 
===Postconditions===
 
*1. Satellite data in a numeric data format (as opposed to image format) covering the spatial area, time range, and parameters that were specified in the query.
 
 
===Normal Flow (Process Model)===
 
*1) The user finds a WCS serving satellite data
 
*2) The user submits a WCS GetCoverage request that includes bounding box, time, and parameter filters
 
*3) The satellite data server provides the data that meets the query criteria. In the process, the data provider may need to execute swath mosaicking and data subsetting services.
 
 
===Alternative Flows===
 
 
===Successful Outcomes===
 
*1.Operation succeeds and user obtains satellite dataset adhering to the requested spatial, temporal, and parameter filters.
 
 
===Failure Outcomes===
 
*1.
 
*2.
 
 
===Special Functional Requirements===
 
None
 
 
===Extension Points===
 
*AQ.SatelliteAccess.1.b
 
NASA GSFC DISC implementation of WCS for OMI NO2 access
 
 
==Diagrams==
 
 
===Use Case Diagram===
 
 
===State Diagram (optional)===
 
 
===Activity Diagram (optional)===
 
 
===Other Diagrams (optional)===
 
 
==Non-Functional Requirements (optional)==
 
 
===Performance===
 
 
===Reliability===
 
 
===Scalability===
 
 
===Usability===
 
 
===Security===
 
 
===Other Non-functional Requirements===
 
 
==Selected Approach==
 
 
===Overall Technical Approach===
 
 
===Architecture===
 
 
===Participating Organizations/Projects===
 
 
===Technology A===
 
 
====Description====
 
 
====Benefits====
 
 
====Limitations====
 
 
===Technology B===
 
 
====Description====
 
 
====Benefits====
 
 
====Limitations====
 
 
==References (optional)==
 

WikiText

'''Bold''' | ''Italic'' | [[Wiki Page Name| Text to show]] | [http://external link.com Text to show]
==Heading== | * Bullets list | # Number List | sign ~~~ | sign and date ~~~~

More Wiki Help
Please note that all contributions to Federation of Earth Science Information Partners are considered to be released under the GNU Free Documentation License 1.2 (see Federation of Earth Science Information Partners:Copyrights for details). If you don't want your writing to be edited mercilessly and redistributed at will, then don't submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource. DO NOT SUBMIT COPYRIGHTED WORK WITHOUT PERMISSION!

Cancel | Editing help (opens in new window)
Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox