Hi John,
        Since I have been looking at these spreadsheets for so long, it struck me
that for the uninitiated it may be useful to have a short glossary of the
column headings in the spreadsheet that was sent to the "scrubbers".

WBS
====
The Work Breakdown Structure. Note that "higher" level WBS values are roll
ups of lower (i.e. more WBS level detail) WBS numbers. Usually WBS level 4
is indicted by a dotted line, and WBS level 5 by a thin dashed line to guide
the eye. The reviewees will be combinations of subsystem managers
responsible at WBS level two and three (depending on the system), plus any
other experts they may need to answer ETC questions.

DESCRIPTION
===========
Description of that WBS item.

COST EST
========
This is the latest value of the cost estimate in ~then year dollars. Note
this is the total cost estimate, NOT the funding. This is what it will cost
to build D0 regardless of funding source. While this is not what is being
reviewed here, it is provided to guide the reviewer.

YTD OBLIG
========
These are the D0 obligations made against the WBS's in FY00 (i.e. starting
Oct '99) up to the end on January 2000. Note that this means that monies
sent to collaborators in the form of PO's against MOU's are considered fully
obligated. These are entered as soon as the requisition enters our system
for the requisition amount, and adjusted later should the PO amount vary.
This item is also not being reviewed by the committee, but is used by
management to track current obligations.

PRIOR YRS OBLIG
==============
These are the same as above, but for FY99 and earlier. Note that these may
change if there are adjustments to PO's that appear later (e.g. shipping
etc). This item is not being reviewed by the committee.

CONTRIB (NON-DoE)
================
These are non-DOE contributions (consisting of contributions from foreign
collaborators, and additional NSF MRI funding). The contributions listed are
the ones that have been fully realized. There are additional contributions
that have not been obligated that we expect to realize in FY00 and FY01 (of
about $385k). The collaborator contributions are treated as fully obligated
against the WBS, i.e. they do not appear in the "project balance". You can
think of this as the collaborator taking full fiscal responsibility to
deliver the item at the cost estimate price.

PROJECT BALANCE
================
THIS IS THE ITEM BEING REVIEWED. This is equivalent to the Estimate to
Complete (ETC) as of the end of January 2000. This corresponds to the amount
that still needs to be obligated to complete the project regardless of
funding source. Note that since this corresponds to the en of Jan, it is a
snapshot. The actual ETC today is of course lower.

Mike