CRE Preparation Blog

A WordPress blog focused on aiding those preparing for the ASQ Certified Reliability Engineer exam. The following excepts are from the most recent blog entries. To see the full list of posts, please visit https://accendoreliability.com/creprep/, or click on one of the excepts below.

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  • Implementing the Right Preventative Action
    Implementing the Right Preventative Action There are two instances when you should implement preventative action. First, once a failure occurs and you would like to avoid similar future failures. Seco …
  • Mandate and Commitment to Manage Risk
    Risk Exists; Therefore, Manage Risk Every organization, business, and individual faces a relentless barrage of risk. Some risks are minor, while others may overwhelm. We all deal with risk, manage ris …
  • Reliability and Risk Mitigation Actions
    Reliability and Risk Mitigation Actions Once reliability risks have been identified and analyzed, we have to do something. Well, not really. If the risk is acceptable to the stakeholders, then we can …
  • Determining Customer Reliability Requirements
    Determining What Customers Really Want Concerning Reliability Customers want the benefits created by your product. They want the time savings, the reduce yield loss, they want the simplicity, coolness …
  • The Quality Triangle and Reliability
    How Does Reliability Fit with the Quality Triangle? The Quality Triangle provides a method to establish priorities for a project. It strives to balance time, cost, and quality (or scope instead of qua …
  • A Framework for Risk Management
    A Framework for Managing Risk Making or supporting decisions involving product or system reliability is fraught with uncertainty. Is it reliable enough? Will failures occur prematurely? Are failures d …
  • CRE BoK and Risk Management
    The New ASQ CRE BoK Group: Risk Managment The 2018 ASQ CRE Body of Knowledge has the new top level section titled II. Risk Management. A few of the topics, 6 of the 9, are the same or similar to topic …
  • Review of 2018 ASQ CRE Body of Knowledge
    An Overall Review of the 2018 ASQ CRE Body of Knowledge The new CRE body of knowledge goes into effect for exams starting January 2018. The changes include topic that have been dropped, added, or alte …
  • 8 New Topics in the ASQ CRE Body of Knowledge
    A Review of the New Topics in the 2018 ASQ CRE Body of Knowledge Last week we reviewed the 10+ topics removed from the CRE body of knowledge (BoK). This week, let’s look at the additions. Three of the …
  • 10+ Dropped Items from the ASQ CRE Body of Knowledge
    A Review of the 2018 ASQ CRE Body of Knowledge: Dropped Topics and Concepts Just noticed the new 2018 ASQ CRE Body of Knowledge has posted on the ASQ site. The new BoK will be in effect for CRE exams …
  • The Eyring Model
    The Eyring Model for Accelerated Testing Sometimes the reaction rate of a process relies on two stresses. For chemical reactions temperature seems to influence the rate of the reaction. Yet, other str …
  • Waterfall Test Planning
    A Waterfall Test Planning Approach to Product Reliability Environmental Testing I may have the name, waterfall, used incorrectly here. Years ago I learned from a former Apple reliability group manager …
  • ALT Allocation of Test Units
    4:2:1 Allocation of Test Units One question that you should consider when planning a multiple stress accelerate life test (ALT) is the allocation of test units to the various stresses. We want to crea …
  • Electromigration Accelerated Life Testing
    Black’s Equation for Electromigration Accelerated Life Testing Black’s equation for estimating the time to failure due to electro migration is a classic. James Black explored and wrote about electromi …
  • Metal Fatigue Failure Mechanism Accelerated Life Testing
    Metal Fatigue Failure Mechanism Accelerated Life Testing Metal is a wonderful, strong, material. Yet under certain types of stresses metal can fail One in particular is fatigue due to cyclic motion. M …
  • Temperature & Humidity Accelerated Life Testing
    Peck’s Relationship for Temperature & Humidity Testing High temperature & humidity is a common test condition. For specific failure mechanisms, there are models available (or you can create a …
  • Time Compression Accelerated Life Testing
    Time Compression ALT – The Easy One The easiest ALT is one that you operate an item more often then operated by the customer. Removing spans of time the item is not being bent, moved, heated, etc allo …
  • 4 Different Types of Reliability Testing
    Getting the Right Information from Your Reliability Testing You cannot test in reliability any more than you can test in quality. Often reliability testing is done though, and knowing the range of tes …
  • 4 Steps to Accomplish HALT
    HALT in 4 Not Always Easy Steps Highly Accelerated Life Testing, HALT, is a method to discover the weaknesses in a design. Using a step stress approach of single and combined stresses, you can quickly …
  • Taguchi Design of Experiments Approach
    Taguchi Design of Experiments Approach Dr. Taguchi was an engineer, not a statistician. He considered the ability of design of experiments (DOE) to identify and reduce sources of variability, yet need …

Course offerings

If you or your team would like a custom CRE prep course, just let me know and we’ll make arrangements to make it happen. I also teach a live 32 hour CRE Preparation course through the

ASQ Silicon Valley Section when we have at least four students. The course runs for the 8 weeks prior to semi annual exam. Learn more about the CRE at the ASQ site.