NASA Life Sciences

Presented to the MOIMS DAI CCSDS International Meeting, Nov

2-6, 2004

By Alan Wood

Jacque Havelka

A.E.Wood & Associates, Wyle Labs/Lockheed Martin, NASA JSC

Content

• Division Background

• Artificial Gravity Project - IMAG– International LSDA

• Preservation– Self-Certification– Preservation activities

Life Science Mission

• Refocused after Presidential goal of Jan 14, 2004 for manned mission to Mars

• HQ reorganization to refocus all activities on human counter-measures

• Rapid implementation of artificial gravity program with DLR and Russia

International Artificial Gravity Program

• The International AG team is a multi-national, multi-disciplinary project that requires “Full Data Sharing”

• The team’s challenge is to build the capability to collect, store and share data generated from 3 different centrifuge facilities (US, Germany, Russia)

– Each country has four international teams: Data, Science, Management & Operations

Requirements include:– Jointly agreed upon Experiment Procedures– Standardized Facilities– Standardized Data Collection Techniques– Standardized Training of Operators– Standardized Analysis of Results– Monitoring of Compliance– Data must also be made available for the digital astronaut project and to the public– Privacy and security considerations

Proposal

Develop IMAG data solution based on:1) OAIS Reference Model & Producer-Archive

Interface Standard2) Archival infrastructure based on international

LSDA for all data planning/ops - proposed3) Make available software, procedures and

experience of LSDA & NASA AG Phase I Implementation.

Proposed Approach (con’t)• DLR & IBMP responsible for their infrastructure:

– Strongly encourage to adopt & base design on OAIS– Offer documentation, design and protocols used by the LSDA– Offer LSDA & AG implementations & software

• Joint development of an SLS version of the Producer-Archive Interface Model (PAIMAS), by the three Space Life Sciences partners, undertaken ASAP. This will help establish the PI & node interfaces

• Use Birds of a Feather

Rationale• Using the OAIS Reference Model and starting work on a

SLS PAIMAS, provides IMAG solid foundation for the international archive:– Common background concepts and assumptions – Able to work with well thought out interfaces– Terminology “Mackenzie Smith of M.I.T. has suggested, it's chief value may be the

establishment of a neutral vocabulary by which researchers in different knowledge domains can communicate about similar concepts without arguing over semantics.”

• Benefits– Provides basis for clearer agreements– Less ‘noise’ and time spent discussing or debating ‘facts’ and

simple misunderstandings– Less time & money spent to get superior results

Producer-Archive Interface

• Agency = Node of Federated LSDA

• Each agency a producer

• Each agency an archive

• PI/Agency = producer/archive

Certification of LSDA

• Use NARA/RLG Certification standard to do ‘self-certification’

• Emphasis on preservation issues– Off-site backup– Media rotation (CD to DVD?)– Custom software being collected?

Backup Slides

ARCHIVE INTEROPERABILITYUsers of multiple OAIS archives may have reasons

to wish for some uniformity or cooperation among them. For example

Consumers of several archives may wish to have:

• common finding aids to aid in locating information across several archives;

• a common Package Description schema for access;

• a common DIP schema for dissemination; or

• a single global access site.

Producers may wish to have:

• a common SIP schema for submission to different archives; or

• a single depository for all their products.

Managers may wish to have means for

• cost reduction through sharing of expensive hardware, software, and preservation efforts; and

• increasing the uniformity and quality of interactions with several archives.

Therefore, it may be advantageous for archives to cooperate to meet these wishes. The motivation might come from the archives themselves, or an authority that has some influence over them may impose it. In the former case, the archive might be motivated by:

• desire to reduce costs;

• desire to keep Consumers happy with their products;

• desire to keep users happy with their quality of service; or

• the need to compete with other archives in order to survive or grow.

• Situations like this can and have motivated agreements without the need for any explicit federation establishing an external authority. However, in cases where explicit federation is established, the external authority is represented in this Reference Model by Management.

• The purpose of this section is to explore the degree of interaction and cooperation among archives. Subsection 6.1 focuses on technical levels interaction, while 6.2 discusses management issues concerning the tension between cooperation and autonomy.

Producer-Archive Interface

• RECOMMENDATION FOR A PRODUCER-ARCHIVE INTERFACE METHODOLOGY ABSTRACT STANDARD FOREWORD

“The purpose of this Recommendation is to identify, define and provide structure to the relationships and interactions between an information Producer and an Archive.”

Definitions:

• Producer: The role played by those persons or client systems who provide the information to be preserved. This can include other OAISs or internal OAIS persons or systems.

• Archive: An organization that intends to preserve information for access and use by a Designated Community.