Experimental Physics and
Industrial Control System

"Mark S. Engbretson" <[email protected]> · Thu, 22 Feb 1996 09:32:15 -0600

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From: 	[email protected][SMTP:[email protected]]
Sent: 	Thursday, February 22, 1996 9:08 AM
To: 	Andrew Johnson
Cc: 	Deb Kerstiens; [email protected]; Andy Foster
Subject: 	Re: EPICS Access Security 

>IMHO there should be a way of being able to put _something_ on a display which 
>tells you without having to move a mouse whether you have write access to a 
>system.

How about a red bounding box as a convention for non-writeable controllers?
(or orange, or yellow)

Anyone else think that if you have someone displaying a display which is filled with special indicators that you can see but not touch implies that someone should design a specialized display to address just that need? I.e., if everyone want a SINGLE display that the powers use to read/write to ioc(s) that the read-only people . . . any maybe not even read-only on some ca variables - your going to end up with displays that are going to resemble 'angry fruit salad' and will not allow a user to do much of anything anyway, besides confuse the heck out of them.

Wouldn't an obvious solution/rejoinder be that when these screens are created, you basically build some for the power (read/write) users; different ones for the infidels, uh, rest of the world, and come up with some compromise for the group that has limited access and so falls somewhere between? 

Me

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System