Reliability HotWire: eMagazine for the Reliability Professional
In this issue:

Issue 42, August 2004

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

Reliability HotWire is a service of ReliaSoft Corporation

To subscribe or update your e-mail preferences, go to http://www.weibull.com/hotwire/index.htm

Hot Topics

Field Data

In last month's issue of the HotWire, we presented reliability testing and its importance to a reliability engineering program. While reliability testing is vital to the implementation of a reliability program, it is not the only source of product reliability performance data. Indeed, the information received from the field gives a "true" measure of product performance and is directly linked to the financial aspects of a product. In fact, a significant portion of field data may be more finance-related than reliability-related. However, given the importance of the link between reliability and income, it is important to ensure that adequate reliability information can be gleaned from field performance data. In many cases, it is not too difficult to adapt field data collection programs to include information that is directly applicable to reliability reporting.

To read more, see http://www.weibull.com/hotwire/issue42/hottopics42.htm  Read more...

Reliability Basics

Likelihood Ratio Confidence Bounds

In Weibull++, there are several methods available for calculating confidence bounds: Fisher Matrix, beta binomial and likelihood ratio. In this month's issue of the Hotwire, we will present the basic theory behind likelihood ratio (LR) confidence bounds. Conceptually, this method is a great deal simpler than that of the Fisher Matrix; however, this does not mean that the results are of any less value. In fact, the LR method is often preferred over the FM method in situations where there are smaller sample sizes.

To read more, see http://www.weibull.com/hotwire/issue42/relbasics42.htm  Read more...

Tool Tips
  • In RGA, what does the Beta (hyp.) value indicate when using the Crow Extended model?

  • While the Crow-AMSAA and Crow Extended models are applicable within a test phase, how can reliability growth be tracked across test phases in RGA?

  • How can the improvements across different stages be evaluated in reliability growth analysis?

To read more, see http://www.weibull.com/hotwire/issue42/tooltips42.htm  Read more...

Latest Software Updates
New service releases are now available for MPC 3 (SR 3.0.13) and RGA (SR 6.0.2). To determine the compile revision of the application on your computer, select About from the Help menu.

 

Application Date Created Version
MPC 3
MPC 3 7/6/04 3.0.13
MPC 3 Update N/A SR 3.0.13
RGA
RGA 7/20/04 6.0.2
RGA Update N/A SR 6.0.2
Hot News
* 2005 ARS Call for Presentations - The 2005 Applied Reliability Symposium is currently accepting presentation proposals that address the Symposium theme: "Sharing applications, success stories and lessons learned in reliability and maintainability engineering." Presentations will be accepted on the basis of the proposal. Subjects that will be covered in the 2005 Symposium include:
  • Warranty reduction
  • Reliability as an investment, not a cost
  • Specifying reliability and reliability metrics
  • Supplier management
  • Data collection, management and analysis
  • Reliability and safety
  • Reliability and market share
  • Reliability testing
  • Software reliability
  • Manufacturing reliability

For more information, please visit the ARS Web site at http://www.ARSymposium.com/present.htm or e-mail Info@ARSymposium.com.

* Reliability Engineering Concepts Training in Venezuela ReliaSoft South America will be presenting reliability engineering concepts in Carcas, Venezuela on August 17 - 20, 2004. This 4 day event will focus on building the appropriate foundations to better understand reliability engineering and the associated statistical analysis. Weibull++ 6 and BlockSim 6 FTI will be presented throughout this event to enhance the learning experience. Please contact ReliaSoft South America directly for registration information at: http://www.ReliaSoft'sA.com.
* MSMT Training Seminar in the UK In an effort to meet the demand for more training in Europe, ReliaSoft is proud to announce a public Master the Subject, Master the Tools seminar in the United Kingdom hosted by Maintain-IT. This series provides basic courses for a solid foundation in the fundamental principles and theory of important reliability engineering topics. Attending this training seminar will help you increase your capabilities and productivity while providing you with a fresh look at your career in reliability engineering. This seminar is scheduled for November 1 - 5, 2004. Please contact Maintain-IT for additional information: http://www.Maintain-IT.co.uk/contactus.htm.
* Calendar of Public Events:
  September Malaysia - Master the Subject, Master the Tools Training Seminar (MSMT) - Introduction to life data analysis, accelerated life data analysis and system analysis: September 6 - 10, 2004 in Shah Alam. Registrations are now being accepted at ReliaSoft Asia: http://www.ReliaSoft.com/contact.htm.
    Thailand - Master the Subject, Master the Tools Training Seminar (MSMT) - Introduction to life data analysis, accelerated life data analysis and system analysis: September 13 - 17, 2004 in Bangkok. Registrations are now being accepted at ReliaSoft Asia: http://www.ReliaSoft.com/contact.htm.
    Advanced System Analysis and BlockSim Training Seminar - September 13 - 15, 2004 in Tucson, AZ. An intensive theoretical and hands-on course utilizing BlockSim that exposes the attendee to the advanced concepts, principles and requirements for performing advanced system reliability, maintainability, availability and related analyses. For detailed information, see http://Seminars.ReliaSoft.com/september_522_470.htm.
    FMEA/FMECA Analysis and Xfmea Training Seminar - September 16 - 17, 2004 in Tucson, AZ. This course offers an overview of FMEA/FMECA analysis procedures with emphasis on the use of the Xfmea software. For detailed information, see http://Seminars.ReliaSoft.com/september_522_470.htm.
  November Master the Subject, Master the Tools Training Seminar (MSMT) - Introduction to life data analysis, accelerated life data analysis and system analysis: November 15 - 19, 2004 in Tucson, AZ. For more information, see http://Seminars.ReliaSoft.com/november_msmt.htm.
    Master the Subject, Master the Tools Training Seminar (MSMT) - Introduction to life data analysis, accelerated life data analysis and system analysis: November 29 - December 3, 2004 in Penang. Registrations are now being accepted at ReliaSoft Asia: http://www.ReliaSoft.com/contact.htm.
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.
 

Copyright 2004 ReliaSoft Corporation, ALL RIGHTS RESERVED