This article describes what data can be evaluated on the Products page. Since variants in ELAM are specific manifestations of a product, the generic term products is also used in this article.
Generally speaking, ELAM saves all captured data when the operator works with the active flowchart in the ELAM Assistant and acknowledges steps. All entries, acknowledgements and measured values are always saved for the respective variant and used for the statistics. Documents opened at runtime in the ELAM Assistant document viewer are not included in the statistics.
The pie chart Completed Products by Status shows what % of variants were completed with the following statuses:
Status OK - show which variants have been completed with the status OK. These are products that have been successfully completed.
Status NOK - Shows which variants have been completed with the status NOK. These are defective products that are not in order and count as scrap, for example.
Status Unknown - Indicates which variants are completed with the status Unknown. These are products that have been completed, but the last step has neither OK nor NOK status.
Note: Please note that as a setter in the flowchart you have to specify exactly with which status your product should be completed by the completion step with OK or NOK. Unless the last step in the flowchart is a completion step, your product will be completed with the status Unknown.
The average process quality shows you the percentage of individual steps in the flowchart that are error-free on the first process run and did not require any rework from the operator. For each completed variant, a separate process quality is also calculated and displayed in the list of completed products.
Sum of steps with status OK / sum of all steps * 100 = process quality (%)
Total process quality (%) per variant / total of all variants = average process quality (%)
The first pass or first yield shows you the percentage of variants that have already passed through the first process run without errors and have not required any rework. As soon as a single work step has the status NOK or Manual OK, the First Pass for the variant is false.
The list of completed products gives you an overview of all completed variants. You can set your own filters per column and search for specific information. Hiding columns is currently not supported.
In ELAM Solutions, the assembly time is calculated for each product, which indicates how long a flowchart was actively displayed in the ELAM Assistant. This assembly time is an important indicator of the efficiency and effort required to assemble a product. To enable a meaningful analysis of these times, we calculate the median deviation of the times as a percentage across all products in the list. In this article, we explain why the median deviation is a better choice than the arithmetic deviation and what insights our customers can draw from it.
The median deviation measures how much the assembly times deviate from the median (i.e. the middle value). The median is the value that lies in the middle of an ordered data series, i.e. 50% of the values are smaller and 50% of the values are larger than the median. The median deviation therefore indicates the average deviation of the assembly times from the median.
By using the median deviation instead of the arithmetic deviation, our customers receive a more accurate and meaningful analysis of assembly times. Here are some concrete benefits:
In summary, the median deviation enables a more robust and representative analysis of assembly times, which leads to a better basis for decision-making and optimization options. Our customers benefit from a more accurate and reliable assessment of their processes.
