1. Software Requirements
Michael P. Rupen
EVLA Project Scientist for Software
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

2. EVLA Advisory Committee Meeting
General Approach
Requirements developed in , re-prioritized in 2005
Each is assigned a priority…
1: essential; 2: important; 3: desirable
…and timescale
Z: test antennas (now)
A: Prototype Correlator (2007 Q2)
B: Limited Production Correlator (2007 Q4)
C: Science commissioning (2008)
D: Shared-risk observing (end of 2009)
E: Full science operations (2012)
Transition issues embedded in main documents
QUESTION: are the timescales correct??? This is from the latest (31dec05) e2e requirements doc.
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

3. EVLA Advisory Committee Meeting
General Approach
“Living” documents
Much direct interaction between responsible parties and programmers (e.g., Subsystem Scientists)
(mostly) single-site project
much on-going VLA expertise
transition issues
react to schedule and staffing changes
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

4. On-line and Science Domains
Proposal Submission
ObsPrep
Scheduler
Archive (science and monitor)
Quicklook Pipeline
ObsMon
Would like common block diagram with others, highlighting which bits we’re talking about
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

5. On-line and Science Domains
Requirements documents:
Timescales and Deliverables (Dec 05)
Science Software Requirements (Dec 05)
Engineering Software Requirements (Aug 03)
Operations Software Requirements (Jun 03)
WIDAR/CBE Requirements ( )
Recent efforts
re-organize by time
comare priorites with resources
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

6. On-line and Science Domains
Status
in reasonably good shape – not holding back development
need to prioritize within “priority 1”, given staffing prognosis
timescale: late summer/early fall
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

7. Post-Processing (CASA)
Pipelines
Interactive processing
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

8. EVLA Advisory Committee Meeting
Post-Processing
Requirements documents:
Science Software Requirements (Jul 03)
Recent efforts
re-visiting priorities and timescales
new WIDAR schedule
ramping up EVLA involvement in CASA
moving CASA from development to user domain
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006

9. EVLA Advisory Committee Meeting
Post-Processing
Status
should be re-visited, now that we have a better idea of EVLA capabilities vs. time
connecting now to 2012
“delta” requirements (vs. ALMA)
tricky since we are moving faster than they in some areas
Rupen
EVLA Advisory Committee Meeting
May 8-9, 2006