In this issue:

Issue 91, September 2008

*Hot Topics
*Reliability Basics
*Tool Tips
*Latest Software Updates
*Hot News
*Contribute to HotWire

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Hot Topics

Using BlockSim for System Capability Analysis
In highly available systems, additional metrics of system capabilities are often needed for system evaluation. In this article, we will explore an example where BlockSim's throughput analysis capability is used in order to perform such analysis.

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Reliability Basics

The Distribution Wizard in Weibull++
When performing life data analysis, Weibull++'s Distribution Wizard can provide guidance in selecting a distribution based on statistical tests. The Distribution Wizard uses three factors in order to rank distributions: the Kolmogorov-Smirnov (K-S) test, a normalized correlation coefficient and the likelihood value. This article will show how these rankings are calculated.

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Tool Tips
  • How can I quickly find the right window when I have several Xfmea/RCM++ projects open?
  • How can on-condition maintenance be modeled in BlockSim?

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Latest Software Updates
New service releases are now available for BlockSim (SR 7.0.5), Xfmea Standard (SR 4.0.6), Xfmea Enterprise (SR 4.0.6) and RCM++ (SR 4.0.6). To determine the compile revision of the application on your computer, select About from the Help menu. More Software Downloads...


Application Date Created Version
BlockSim 7 8/13/08 7.0.5
Xfmea 4 Standard 8/1/08 4.0.6
Xfmea 4 Enterprise 8/1/08 4.0.6
RCM++ 4 8/1/08 4.0.6
Hot News
* Opportunity Awaits! - Use your creativity, expertise and real-world experience to garner a coveted presentation slot at the 2009 International Applied Reliability Symposium, North America, which will be held from June 10 - 12, 2009 in San Diego, CA. The ARS committee is currently accepting presentation proposals through December 5, 2008. For consideration, please submit your proposal by the deadline. If your presentation is selected, you will not only gain the prestige of being a presenter, but also complimentary registration to the event, an ARS logo shirt and a shot at winning one of the Excellent Presentation Awards! Complete details (including the required proposal form) are available for your review at
* ARS Asia Pacific - The 2008 International Applied Reliabilty Symposium, Asia Pacific will be held October 22 - 24, 2008 at the Orchard Hotel Singapore. This year's variety of topics will focus on sharing applications, success stories and lessons learned in reliability and maintainability engineering. For more detailed program information, please visit To register online, please visit Remember to reserve your hotel room by contacting Ms. Wenddie Teo by phone at +65 5739 6682 or by e-mail at
* Probabilistic Event Simulation - RS 525 Simulation Modeling for Reliability and Risk Analysis is a three-day course that focuses on the principles of probabilistic event and risk analysis using simulation techniques and building probabilistic event models and diagrams with ReliaSoft's RENO software. This course includes numerous hands-on applications and case studies that address complex reliability, risk and safety analysis as well as optimization methods. For a complete course overview, please visit The next course will be held October 15 - 17, 2008 in Tucson, Arizona.
* On-Site Training - Did you know that ReliaSoft offers the entire reliability training course catalog in an on-site format? This is a great alternative to public seminars when eight or more staff members require training. For more information about on-site options, please visit To review ReliaSoft's course catalog online, please visit
Upcoming Public Training Event Calendar
September 2008
September 22 - 24, 2008: RS 560 Fundamentals of Design for Reliability in Bangalore, India
September 22 - 26, 2008: MSMT Foundations in Warsaw, Poland
September 22 - 24, 2008: RS 522 Advanced System Reliability / Maintainability Analysis in Tucson, Arizona
September 25 - 26, 2008: RS 470 Failure Modes, Effects and Criticality Analysis in Tucson, Arizona
October 2008
October 8 - 10, 2008: RS 521 Advanced Accelerated Life Testing Analysis in Turin, Italy
October 13 - 17, 2008: RS 540 Reliability and Maintainability Analysis for Repairable Systems in Paphos, Cyprus
October 15 - 17, 2008: RS 525 Simulation Modeling for Reliability and Risk Analysis in Tucson, Arizona
October 20 - 21, 2008: RS 470 Failure Modes, Effects and Criticality Analysis in Singapore
October 22 - 24, 2008: International Applied Reliability Symposium in Singapore
October 27 - 31, 2008: MSMT Foundations in Tucson, Arizona
November 2008
November 10 - 11, 2008: RS 401(C) Reliability and Life Data Analysis (Condensed) in New Delhi, India
November 10 - 14, 2008: MSMT Foundations in Melbourne, Australia
November 17 - 21, 2008: MSMT Foundations in Bordeaux, France
November 18 - 19, 2008: RS 475 FRACAS Principles and Applications in Tucson, Arizona
November 20 - 21, 2008: RS 490 Standards Based Reliability Prediction in Tucson, Arizona
Contribute to HotWire
Contributions Welcomed
As always, your feedback and contributions are appreciated. ReliaSoft is able to provide the most user-friendly reliability software packages and support because we listen to our customers. This applies to our newsletters and publications as well. We welcome any suggestions or contributions you may have for Reliability HotWire. If you have a topic or article that you think would be useful to the readers of Reliability HotWire, feel free to contact us.

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