# Presentation: 718621

## Guidance for Science Data Centers through Understanding MetricsJohn.F.Moses@nasa.gov   Carol.L.Boquist@nasa.gov  Tonjua.M.Hines-Watts@nasa.gov  

-  EOSDIS Data Centers are co-located with science facilities, educational institutions, and mission instrument teams.
-  Each Data Center serves one or more Earth science disciplines.
-  Each Data Center processes, archives, documents, and distributes data from EOS and heritage instruments.

- EOSDIS surveys were performed by CFI Group through a contract with the Federal Consulting Group (Dept of Treasury)
- Survey questions consist of model and demographic questions
-  American Customer Satisfaction Index (ACSI)  model questions remain the same year to year
-  Minor modifications made to demographic questions
- NASA provides CFI Group a list of email addresses for people who have requested and received data center products
-  Approximately 25,000 in 2006 (21,000 in 2005)
-  Separated list of users for each data center
-  Attention was given to get a balance across data centers
- CFI sends out email invitations and the Survey web site is made available for 3 weeks in the summer
- Users completed 2953 surveys in 2006 (1,395 in 2005)

***EOSDIS metrics have been collected, analyzed, distributed for over 10 years.***

- EOSDIS has scored well – on par or better than government benchmarks

- www.nasa.gov

- EOSDIS metrics are analyzed and used for program management and reports.
-  Reports to NASA HQ for evaluation of EOSDIS performance and effectiveness
-  Reports to NASA data center mangers, ESDIS Project, and NASA HQ for determining how best to apply resources to support the science community
-  Annual report since 1993

**For 2005:**
- 65% said FTP was their preferred method;
- 22% said download from web.

**2006 Survey**

-  Weekly collection of product transactions from science data centers
- Product and user configuration information is updated by data centers
- Weekly status reports for monitoring of science instrument data flows
- Monthly and annual reports for GSFC management briefings covering the recent trends across systems
- Ad-hoc reports for special science data studies - user characterization, access method trends and high-level analysis at the product level for ad-hoc or annual reviews
-  Real-time collection and posting of user activity at the data center web sites
- Page tags are configured and installed by data centers

- Q12.  How did you search for the data products or services you were seeking? (n=2,857)

***In 2004 ESDIS began conducting annual surveys to determine customer satisfaction.***

***Improving services for MODIS and ASTER will improve overall satisfaction.***
-  Users often selected more than one instrument as the source of data received in their most recent order.
-  Responses suggest we should conduct further analysis of multi-instrument product searches.

**Guidance for Science Data Centers through Understanding Metrics**_**[John.F.](mailto:John.F.Moses@nasa.gov)**__**[Moses@nasa](mailto:John.F.Moses@nasa.gov)**__**[.gov](mailto:John.F.Moses@nasa.gov)**_   _[Carol](mailto:Carol.L.Boquist@nasa.gov)__[.L.](mailto:Carol.L.Boquist@nasa.gov)__[Boquist@nasa](mailto:Carol.L.Boquist@nasa.gov)__[.gov](mailto:Carol.L.Boquist@nasa.gov)_  _[Tonjua](mailto:Tonjua.M.Hines-Watts@nasa.gov)__[.M.](mailto:Tonjua.M.Hines-Watts@nasa.gov)__[Hines-Watts@nasa](mailto:Tonjua.M.Hines-Watts@nasa.gov)__[.gov](mailto:Tonjua.M.Hines-Watts@nasa.gov)_

***Very few users require data delivered on physical media; most users prefer web and ftp for delivery.***

***A significant number of users indicated they would prefer TIFF or GeoTIFF.***
* *Indicates further analysis of survey responses – breakdown by instrument
-  Suggests metrics collection and analysis could provide better information

***Most users access their data through the web.***
-  Anticipate higher utilization of online data systems
-  Respond to users through analysis of WWW access and product request patterns
-  Look for Web content and services to enable new and repeat user communities

***The survey shows that product search continues to be the top opportunity for improving satisfaction.***
* *Responses suggest users prefer data-center specific search tools
-  Majority of users depend on the EOS Data Gateway – the common cross-data center search tool

- EOSDIS collects ingest, archive, access, and distribution metrics.
-  Ingest and archive – what product files were ingested by the data center and when
-  Corollary: What product files were deleted from the archive
-  Previous versions of products that have been replaced with a new version after reprocessing
-  Products that have been moved to other data centers
-  Distribution - what product files were distributed, by what method, when and to whom
-  Access – who, when and what they go to at the DAAC
-  Collection ed weekly from each data center

***ESDIS metrics collection and analysis reflect changing user access patterns and an increasing use of metrics for project management. ***

***Metrics re-engineering will increase insight into user access and take advantage of recent capabilities offered by commercial venders.***

-  New tools for recording and analyzing how users navigate through Web pages, find and access products (NetInsight)
-  Advanced integration of metrics with Web services RDBMS (HTML DB)

- WWW access:
- 2.9 Million users in 2006
- 2.5 Million users in 2005