[Moims-dai] Reminder of meeting

David Giaretta david at giaretta.org
Tue Oct 11 17:38:04 UTC 2016

Hi Terry


That makes sense to me. Perhaps we could make it consistent with Mike’s diagram by making it clear there could/would be variations for different types of users/disciplines etc




From: MOIMS-DAI [mailto:moims-dai-bounces at mailman.ccsds.org] On Behalf Of Terry Longstreth
Sent: 11 October 2016 16:22
To: Giaretta, DL (David) <david at giaretta.org>
Cc: 'MOIMS-Repository Audit and Certification Working Group' <moims-rac at mailman.ccsds.org>; MOIMS-Data Archive Ingestion <moims-dai at mailman.ccsds.org>
Subject: Re: [Moims-dai] Reminder of meeting


Sorry about my communications difficulties.  I'll have to find a different way of connecting to the NASA Webex.

Here's what I was trying to say in the Webex this morning. 

I've added some text to the row in the table sent around with the meeting announcement.  Specifically, I'm proposing listing the DIP as the conceptual anchor for Consumer Archive Interface (CAIS).

On 10/10/2016 3:07 PM, David Giaretta wrote:

*	Comments on MOIMS Functional and Service Views 



Producer Archive Interface [PAIS] 

Data Archive 

Mission Data Processing 


Submission Information Package (SIP) 

SIP Sequencing Constraint 

Transfer Object 

Collection Descriptor 

The current PAIS standard provides the abstract syntax and an XML implementation of descriptions of data to be sent to an archive. It addresses how these data will be aggregated into packages for transmission and one concrete implementation for the packages based on the XML Formatted Data Unit (XFDU) standard. 

A service specification is proposed but has not yet been developed. 

Producer-Archive Interface Specification (PAIS)
[CCSDS 651.1-B-1] 





Consumer Archive Interface [CAIS] 

Data Archive 

User Support


Distribution Information Package (DIP)

Delivery of digital sources from the Archive. 
DIP Formats and protocols are outside of the scope of the architecture, but can be included in interface or operational specifications






Preparation for Information Use 

Metadata collection 

Define and collect metadata 

Representation Information

Fixity Information

Provenance Information

Reference Information

Context Information







Information preservation 

Information needed to maintain understandability of authentic information 

Produce Representation Information 












Long term Preservation and Use 

Maintain understandability of authentic information 

Long term Information 

Concepts needed for long term preservation 


Reference Model for an Open Archival Information System (OAIS)
[CCSDS 650.0-M-2]





Transfer information with appropriate metadata 

Definition of Information Packages, including AIPs 

Package information 



XML Formatted Data Unit (XFDU) Structure and Construction Rules
[CCSDS 661.0-B-1] 






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