I received an update notice from exida regarding their software and am wondering if anyone else is concerned.  I have to go through several files to verify every single SIL / SIS loop I have worked on in the last 6 months.  If I find discrepancies, I will have to notify clients which has the potential to add significant costs to their projects (additional valves, re-engineering, field/construction change notices, etc.)  This is perceived as industry leading software but the version 3 seems to have a lot of problems that were not experienced in version 2.

Is anyone else questioning the credibility of this software?  Does anyone else know of some alternatives?  I would be interested in hearing suggestions and comments.

Hopefully I posted this in the right place.

Interesting sdl. I am not a user of exsilentia and I cannot see on their web site what this might be about. I guess an answer 'might' be it depends on what you used it for and whether there could be any hazards that result from relying on it without other ways of verifying what you have done.
So what have you used exsilentia for?
 

Francis
www.controldraw.co.uk
www.s88control.blogspot.com

It is software used to calculate SIL/PFDavg targets for safety instrumented functions/systems.