BS-8 teleconference minutes - #10

8 January 2002

Participants: **Vlado Bazjanac** (LBNL, author of these minutes),
**Jean‑Pierre Bedrune** (Laurenti), **Jim Forester** (Marinsoft),
**Reijo Hänninen** (Olof Granlund), **Philip Haves** (LBNL), **Rob
Hitchcock** (LBNL), **Veijo Lappalainen** (VTT), **Kirk McGraw** (CERL),
**Darko Sucic** (IKE), **Peng Xu** (LBNL).

**Activity report.**

*Task 1 (Connectivity)* -- TAG discussed general connectivity in another
teleconference. Other domains view connectivity differently and at this
time it is not feasible to define a common view that will meet the needs
of all without adversely affecting the BS-8 project schedule. It was
decided that BS-8 should proceed and model connectivity in a way that
will meet the needs of building services. That model can then be
extended later to meet the needs of other domains as those are defined.

*Task 2 (Time series)* --Activity has been slow because of work on other
tasks. Rob requested to have the schema posted on the ftp site. Darko
will send the graphic definition of the schema to Peng to post it on the
ftp site.

*Task 3 (HVAC object/attribute/relationship sets)* -- This has been a
busy task lately, with most work concentrating on the restructuring of
components. Attribute lists were sent to GPC-20 and others for review
and comments. Only half of those contacted have responded to date; only
about a third of the attributes have received comments. Phil will raise
the issue of reviews again at ASHRAE, and Vlado will do the same at the
BS-8 meeting in Munich next week. This task needs to tap into
professional environments, practitioners and manufacturers outside North
America (outside ASHRAE) for reviews. The most important issue now is to
get the buy-in for attribute lists. Darko started writing a white paper
for this task. Peng will update the spreadsheets as comments come in.

*Task 4 (Electrical systems)* - Due to other work, this task had no
recent activity; work will hopefully resume shortly.

*Tasks 5 and 6 (Controls model + Relationship to BACnet)* -- Not much
progress is being made; Phil received only one response for
participation so far. He will continue to try to get individual
responses at ASHRAE in Atlantic City next week. GPC-20 is apparently
still neither properly organized nor functioning, and its meeting in
Atlantic City may not be very productive.

*Task 7 (Integration of BS-7)* - No problem is seen to merge the
schemata. Two of the components in BS-7 (cool beam, duct silencer) are
not included in BS-8 at this time; air-handler and valve definitions
already exist in IFC 2x and need to be modified. BS-7 definitions will
be restructured if needed to meet the new model definitions.

*Tasks 8, 9 and 10 (EXPRESS model, IFC model integration, and Early
implementation)* - Modeling work started related to a number of tasks.
As before, it will be necessary to coordinate modeling with the results
of reviews of the listed components so that they are defined in EXPRESS
only once.

*Tasks 11 and 12 (Project support + Coordination with the overall
CEC/PIER project)* - Both supporting agencies (DOE and CEC) are
continuously informed about the work.

Tasks 13 (The Project Advisory Group) - No news were reported regarding
the Project Advisory Group.

**Face-to-face meeting in Europe.** The meeting in Munich next Monday,
January 14 will be held at Obermeyer, Hansastrasse 40. It is one block
for a subway station, west of the main railway station. The meeting has
been expanded to include representatives from other projects, as well as
members of the IAI Modeling Support Group (MSG). It will start at 10:00.

**Action items**:

-   Darko will send the graphic definition of the time series schema to
    Peng who will post it on the ftp site;

-   Peng will update HVAC spreadsheets as comments come in.

The next general BS-8 teleconference will take place on Tuesday,
February 12. It will start at 15:30 GMT, which is 7:30 PDT, 10:30 EDT,
16:30 in Germany and France, 17:30 in Finland and 0:30 (February 13) in
Australia.