Critical Documents for the System Design Review

This morning there were 106 documents listed in the System Design Review
folder on almaedm, which is restricted in access.  However, Christoph Haupt
provided a list of the most critical items which I have edited here for the
ASAC.

Science
The Science Requirements is in almaedm at
http://tinyurl.com/2zko2
and the calibration documents are available as 
pdf documents linked to the agenda. These documents are very important top 
level requirements and specifications driving the entire ALMA system 
design. The calibration documents are available in a draft form. 
Comments of the review panel are very much welcome, but the draft status 
of the calibration plan should be taken into account. This means that 
the review panel shall define how to handle the calibration issue during 
that review.

System Engineering
SE documents are available on ALMAEDM at

/IPTs /SystemEngineering /Documentation .

This is rev C, document 80.04.00.00-002-C, dated 2004-01-30.

The main changes from the previous version include re-wording of the
discussion of WVRs in sections 3.1.1.2 and 3.3.4, and slight changes
to the phase stability requirements in Table 4B as a result of using
the latest estimates of phase switching residuals (LAMA memo 803) and
of WVR residuals.  (The instrumental jitter limit becomes 75 fsec rather
than 83 fsec, and the drift limit becomes 25 fsec rather than 28
fsec.  These changes are too small to be of practical significance,
but they allow us to maintain consistency and traceability.)

In addition, some minor wording improvements have been inserted and a
few typos have been corrected.

The (draft) "System-Level Technical Requirements" document has also
been revised to be consistent with the above.  It is now rev B, and is
in the same folder on ALMAEDM as document 80.04.00.00-004-B.

These documents should give an overview about the ALMA system design 
and need to checked regarding consistency with the science documents 
and the sub-system specifications and design documents.

Antenna
Request for Proposal documents are in almaedm at:
http://tinyurl.com/2se6g
The Specification document is most critical for Science.
http://tinyurl.com/2hg3s
 These documents are applicable to the ALMA production 
antenna and provide also information about the antenna top level design. 
A detailed design for the ALMA antenna does not exist today. Only the 
antenna prototype detailed designs exist.

Front End
Front End specifications are most important for ASAC examination.
http://tinyurl.com/2nl7d

Back End
The Back End top level design description is included in the Back End 
specification. It is important to check the Back End design and its 
consistence with system specification and design.
ALMA IF Processing and Transmission Design
http://tinyurl.com/26agw

Local Oscillator
The local oscillator is regarded as critical for the ALMA performance. 
The design shall be carefully reviewed and assessed.  Overview at
ALMA LO Reference and Timing Subsystem Design 
http://tinyurl.com/2vsy4

Correlator
The correlator documentation is based on the correlator CDR 
documentation. Some of the documents were updated. We have added a 
document about the tunable filter. The tunable filter should receive 
most attention as a ALMA project decision is needed on this option.
The Change Request is at:
http://tinyurl.com/2346j

Computing
Of most relevance to the ASAC is probably the
ALMA Software Science Requirements and Use Cases
http://tinyurl.com/3cwe5