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<== Date ==> <== Thread ==>

Subject: RE: Revision tracking on vendor supplied updates?
From: "Dalesio, Leo" <[email protected]>
To: "Josh Stein" <[email protected]>, "EPICS tech-talk" <[email protected]>
Date: Tue, 5 Jan 2010 13:42:52 -0500
Title: RE: Revision tracking on vendor supplied updates?

The interface to these devices increases.

If it is clean in function and interface, any upgrade should carefully consider what gets upgraded. The cost of hardware is relatively cheap to the cost of labor. It would seem that upgrades should first ask the question: what do I accomplish. Then the upgrade path considered: the entire blob of hardware is more likely a better answer than a software upgrade of a poorly understood black box. If it ain't broke - don't fix it. If you need something new - consider replacing the whole thing.

The NSLS II is developing these devices for motion control, BPM, power supply, fast feedback, and of course PLCs. We certainly push for open source developments and products. Our position is that products that do not make their source, drawings, firmware available are considered less desirable vendors. The goal is to have everything able to be supported in house.



Replies:
RE: Revision tracking on vendor supplied updates? nick.rees
Re: Revision tracking on vendor supplied updates? Steven M. Hartman
References:
Revision tracking on vendor supplied updates? Josh Stein

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