# Presentation: 311579

## The Life Cycle Process of Science Data Generation and ArchiveThe Role of the Active ArchiveSecond Seeds WorkshopSan DiegoJune 18, 2002Steve KemplerGES DAAC Managersteve.kempler@gsfc.nasa.gov301-614-5765

## Active Archives are responsible for the execution, engineering support, data support, and science support of mission oriented data management functions (data ingest, archive, production, distribution, management, and user services).
Active Archives are the keepers of data and information generated by data sources, derived by data processing, and created by data providers.
Active Archives are staffed by experts in discipline specific science fields, computer engineering and technology, production operations, and user services.
Active Archives facilitate science by developing value added products and services in response to the evolving needs of the science community and advances in data and information system technologies
Active Archives remain active from mission preparedness and system development to mission completion and data access inactivity.

*Active Archives are the keepers of data and information generated by data sources, derived by data processing, and created by data providers.*
*Active Archives are staffed by experts in discipline specific science fields, computer engineering and technology, production operations, and user services.*
*Active Archives facilitate science by developing value added products and services in response to the evolving needs of the science community and advances in data and information system technologies*
*Active Archives remain active from mission preparedness and system development to mission completion and data access inactivity.*

- Scope of Active Archives

## Active: Constantly engaged in action
Archive: A place where records or documents are kept

Thus, an Active Archive is the place where data and supporting information holdings are regularly ingested, stored, accessed and distributed.

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In terms of facilitating the long term safeguard of NASA Earth science data, this implies that Active Archives must have:
All available Supporting Information ingested and stored for all data, to maintain a thorough history of the data (Information collection)
All data and supporting information stored, periodically checked for integrity, and backed up (Information Stewardship)
All data and supporting information in a form that can be accessible and usable using current technologies, in preparation for LTA. (Information migration)

Active Archives must have the ability to prepare for stewarding data, steward data, and provide information for future stewardship of data, through the active period of the data  lifecycle. 

**Archive: A place where records or documents are kept**
- Thus, an Active Archive is the place where data and supporting information holdings are regularly ingested, stored, accessed and distributed.
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- In terms of facilitating the long term safeguard of NASA Earth science data, this implies that Active Archives must have:
- All available _Supporting Information ingested_ and stored for all data, to maintain a thorough history of the data (**Information collection**)
- All data and supporting information _stored_, periodically checked for integrity, and backed up (**Information Stewardship**)
- All data and supporting information in a form that can be _accessible and usable_ using current technologies, in preparation for LTA. (**Information migration**)
- Active Archives must have the ability to prepare for stewarding data, steward data, and provide information for future stewardship of data, through the active period of the data  lifecycle.

- Definition:  An Active Archive

## Active Archive Data Life Cycle Process Preparations

- Develop early relationship with data providers to understand mission goals and acquire data product documentation with generated data
- Ensure resident expertise in science disciplines, data management, and information systems
- Completely understand user community ‘model(s)’
- Develop tools that enhance the accessibility, usabilty, and value of the data
- Develop a philosophical, technical and operational relationship with the LTA sponsor

## Level of User Services Needed for Life Cycle Process

- Marked in Red

## Levels of Service for Products Support 

- Levels of Service for Products Support
- Needed for Life Cycle Process
- Marked in Red

## Levels of Service of Long Term Data Stewardship

-  Needed for Life Cycle Process
- Marked in Red