Time Studies with your BlackBerry

Performing a time study is relatively easy compared to only few years ago.  The technologies available today allow studies to be conducted quite readily. Time Studies and OEE (Overall Equipment Effectiveness) The Performance factor for OEE is based on the Ideal Cycle Time of the process.  For fixed rate processes, the Name-Plate rate may suffice but should still be confirmed.  For other processes such a […]

OEE in the Automotive Industry

The automotive industry appears to be rebounding at a faster rate than most (if not all) experts may have anticipated.  Many OEM’s and their suppliers are attempting to boost production to replenish inventories and support renewed demand for their products.  Reduced inventories throughout the supply chain are creating demand that is difficult to replenish at the rate required.  Short runs […]

OEE for Batch Processes

We recently received an e-mail regarding OEE calculations for batch processes and more specifically the effect on down stream equipment that is directly dependent (perhaps integrated) on the batch process.  While the inquiry was specifically related to the printing industry, batch processing is found throughout manufacturing. Our more recent experiences pertain to heat treating operations where parts are loaded into […]

Benchmarking OEE

Benchmarking Systems: We have learned that an industry standard or definition for Overall Equipment Effectiveness (OEE) has been adopted by the Semi Conductor Industry and also confirms our approach to calculating and using OEE and other related metrics. The SEMI standards of interest are as follows: SEMI E10:  Definition and Measurement of Equipment Reliability, Availability, and Maintainability. SEMI E35:  Guide to Calculate Cost of Ownership […]


Some of our readers have expressed an interest in the application of Statistical Analysis Tools for OEE.  We have also reviewed various texts and articles that have expressed opposing views on the application of Statistical Tools with OEE data. Our simple answer is this:  At best, statistical tools should only be used on unique or individual processes.   Comparisons may be made (with caution) […]

OEE Measurement Error

How many times have you, or someone you know, challenged the measurement process or method used to collect the data because the numbers just “don’t make sense” or “can’t be right”? It is imperative to have integrity in the data collection process to minimize the effect of phantom improvements through measurement method changes.  Switching from a manual recording system to […]

OEE For Dedicated – Single Part – Processes

OEE For Dedicated – Single Part – Processes Definition:  Dedicated – Single Part – Process:  A process that produces a single product or slight variations on a theme and does not require significant tooling or equipment changeover events. A single part process is the easiest application for a OEE pilot project.  The single part process also makes it easier to demonstrate […]

Weighted OEE: How To Calculate Total Plant OEE

In this post we will present a simple method to calculate a truly weighted OEE, including weighted factors Availability, Performance, and Quality. The QUICK weighted OEE method: Recalling our original definition of OEE, we are measuring how effectively our planned production time (net available time) is used to make a quality (saleable) product.  The weighted OEE then is the total time […]