Consider a call such as:
Select XXX from yyy in format zzz.
FILE REQUEST
yyy
DATA ELEMENT REQ-
XXX
REFORMAT REQUEST
zzz
DATA ELEMENT SENT
TO REQUESTER
MODEL FOR DATA ELEMENT RETRIEVAL AND CONVERSION
TSDN Status
The TSDN is being developed at the Jet Propulsion Laboratory, Californua
Institute of Technology, under the auspicies of the Consultative Committee
on Space Data Systems, under a contract with the National Aeronautics and
Space Administration. It has been accepted by ANSI as a new work item; it
is hoped that it will be imminently ready for public review. Further
information is available from the authors, and comments will be
appreciated.