PRISM Forum
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Posted by: Fred Levesque
Organization:Raytheon
Date posted: Mon Oct 23 14:28:00 US/Eastern 2000
Subject: 100% duty cycles
Message:
I was trying to simulate an operational failure rate (rather than calendar) by choosing a 100% duty cycle and zero cycling rate in the PRISM operating profile menu. I was dismayed, however, when I found that changing the dormant temperature caused the failure rate to change by a large amount. If you have a 100% duty cycle and zero cycles per year, how can the failure rate be a function of the dormant temperature entry?
Posted by: Fred Levesque
Organization:Raytheon
Date posted: Mon Oct 23 13:41:42 US/Eastern 2000
Subject: Opening *.RSE files
Message:
I have not been able to open *.RSE files that I have moved to other directories. Must they remain in the PRISM 1.00 root directory? Also, is it possible to navigate between the right and left sides of the PRISM window using a keyboard sequence rather than the mouse? How about navigating between the "tabs" on the right side?
Posted by: Dave Ellis
(ellis@ezlink.com
)
Organization:Ellis Quality Engineering Services
Date posted: Tue Oct 10 11:50:29 US/Eastern 2000
Subject: System/Assembly level failure rate roll ups
Message:
I am in the process of generating a medium sized prediction and have noticed that the system or assembly level failure rate summarizations don't agree with manually calculating the total failure rates. For example, one assembly has 2.379, another 0.094 and another 0.065, but the overall system failure rate is only at 0.589 and the system level hardware component is less than the total sum. Comments?
Thanks.
Posted by: Dave Ellis
(ellis@ezlink.com
)
Organization:Ellis Quality Engineering Services
Date posted: Sat Oct 7 21:28:05 US/Eastern 2000
Subject: Installation of InterBase
Message:
I downloaded the PRISM demo last week from your web site and then uninstalled it and InterBase. I received the PRISM software yesterday and tried to install it on the same computer - Gateway 650MHz laptop with 64M RAM. During the install, InterBase keeps saying I have it installed even though I did the uninstall to remove it. Once PRISM installs, I get "Unable to connect to common elements database. Terminating..." I have uninstalled and reinstalled PRISM and InterBase 2 times and still get the same response. I have had to install on my home PC - Gateway 333, 64M RAM and have had no problems. Any insight on what I should do on the laptop? I don't understand why after using the InterBase uninstall, InterBase thinks it is still installed.
Thanks.
Posted by: Tammy T Sehn
(rac_software@alionscience.com
)
Organization:IIT Research Institute/ Reliability Analysis Center (RAC)
Date posted: Tue Sep 5 11:37:11 US/Eastern 2000
Subject: PRISM for INTERNATIONAL USERS
Message:
To all our International Users:
We have identified an error occuring during the save which is preventing saving of systems. We have isolated the problem to date and time formats. Version 1.2 which is due to be released in October of this year (2000) corrects this problem. Until this is released please convert your date/time values to mimic US dates and times of M/D/YY hh:mm:ss tt (ie: today is 9/5/00 11:32:00 AM)
Tammy T Sehn
Programmer/Analyst
IIT Research Institute
Reliability Analysis Center
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