In these HIPAA days, sooner or later it is going to be not kosher to share 
userids or have open access systems.  But that's a topic for a discussion at 
another time.  I am scrambling this weekend to get something ready for the 
VistA Community Meeting in Boston.

-- Bhaskar

-----Original Message-----
From:   [EMAIL PROTECTED] on behalf of Greg Woodhouse
Sent:   Sat 4/2/2005 6:57 PM
To:     [email protected]
Cc:     
Subject:        RE: [Hardhats-members] Need advice re Linux/GT.M login script
That's an interesting question. In VHA, things have never been done
this way. The MUMPS subsystem (whatever the flavor) has always run
under the control of a single (pseudo-)user and then users would sign
in using VA Kernel. In fact, it's not unusual to set up an account with
no password but with VistA (Kernel) as its "shell". But remember that
VistA originated (then called DHCP) at a time when it was not the norm
for users to have their own accounts at the OS level. My VA career
doesn't go back to the PDP-11 days, but it wasn't that long ago that
VistA/DHCP was run on top of DOS. If VistA development were started
today, I don't think it's likely that the same architecture would be
used -- Or would it? Lately, I've been thinking about ways to optimize
access by multiple users to the same tables/file (depending on the
underlying DBMS) and it is in many ways attractive to have a single
"user" accessing the database with a front-end of some sort handling
synchronization and resource sharing. But then, of course, that's just
what an application server is for! (Yet another way that VistA has
anticipated current technology.)

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