ESS 265

Chapter 11.

Operation of a Distributed Information System: The Planetary Plasma Interactions Node Example

Raymond J. Walker

March 17, 1999

 


ESS265
Distributed Data Management


 

Why Bother?

 

The PDS Charge

Provide the scientific community with the highest quality planetary data forever!


 

Who is PDS?


 

Planetary Plasma Physics



 

The PPI Node



 

Planetary Plasma Physics- Observation Types


 

PPI Node - Data Preparation Process


 

Documentation


 

Sample PDS Catalog Template


 

Documentation


 

Sample PDS Label


 

Peer Review Process


 

PPI Node-Data Management Considerations


 

PPI Node- Inventory Tracking


 

DITDOS


 

Database Table

Field name Description
Refname The reference name for the database.
desc A textual description of the contents of the database.


 

Product Table

Field name Description
dbname The reference name of the database which includes this product.
refname The external reference name for the product.
sysname The location within the system of the inventory table for the product.
desc A textual description of the contents of the product.


 

Dataset Table

Field name Description
Refname The external reference name for the dataset.
curator The reference name for the curator of the data set.
desc A textual description of the contents of the dataset.


 

Member Table

Field name Description
dataset The external reference name of the dataset of which this file is a member.
sysname The path to the data holding which is referred to by this entry.
type The data content type of a member (data, document, image . . . .).
status The status of the member file (on-line, off-line, . . . ).
class The name of the data storage format (e.g. ascii cr/lf, UCLA IGPP flatfile, FITS . . . .).
instance The version of a format (e.g. UCLA IGPP flatfile version 2).
desc A textual description of the contents of the member.


 

Curator Table

Field name Description
curator The reference of the curator for the dataset.
name The full name of the curator.
inst The affiliation (institute) of the curator.
address The mailing address of the curator.
phone The telephone number of the curator.
e-mail The full e-mail address of the curator.


 

Privileges Table

Field name Description
refname The external reference name of the dataset for which the privileges apply.
user The name of the user with the privileges.
host The name of the host the user must originate from in order for this set of privileges to apply.
priv This field is a bit map of the privileges granted: bit 1 select; bit 2 insert; bit 3 update; and bit 4 delete.


 


 

Inventory Description Language


 

DITDOS


 

Agents for Flatfiles


 

Preparing, Accessing and Using the Data


 

Space Physics


 

NSSDC


 

ISTP Data Services


 

Sun-Earth Connection Data System


 

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