When categorizing criticality levels using a numerical scale, the numbers can either increase (e.g., 1 being of low criticality) or decrease (e.g., 1 indicating high criticality). Have you encountered any scenarios indicating which approach is more effective? A common perception is to associate the highest level of criticality with the number "1" due to its connotation of being the "first." However, in a mathematical context, is it more logical to correlate higher criticality with a higher numerical value? While this may seem like a minor issue, ensuring the effectiveness of the system is crucial to avoid complications in sorting and calculations in the future. As I evaluate our current system and contemplate potential revisions, I aim to avoid any limitations that may impede adherence to sorting and arithmetic principles. Mark
Yes Mark, there are two main approaches to analyzing risk. Personally, I prefer focusing on high levels of criticality. By conducting a matrix analysis and multiplying frequency by consequence, you can obtain a numerical value that corresponds to the level of risk. Typically, high-risk scenarios are represented on the left side of the x-axis, while high-consequence events are positioned higher on the y-axis. This correlation results in higher numerical values indicating greater risk. To simplify this process, you can use a scalar number to re-scale the values back to a more manageable 1-10 scale or something similar.
I prefer using different approaches in various situations. When conducting a risk analysis or determining RPNs in an FMECA analysis, I designate high as critical due to its similarity to APM. Conversely, for equipment criticality and work order prioritization in our CMMS, I prefer low as critical as it is more intuitive for planners, mechanics, and operators. For instance, in our CMMS, equipment criticality is categorized as A, B, or C, with A signifying the highest level of criticality. Work order priorities are ranked as 1, 2, or 3, with 1 indicating the highest priority (0 for emergency work). This system helps planners identify A1 work orders as their top planning priority.
It is a smart move to align equipment criticality with work order priority, such as implementing a system like A1. This approach is particularly beneficial when equipment criticality is not explicitly stated in work orders.
Interesting points, Mark. In my experience, the choice between these two approaches largely depends on the audience and the application. If the numerical scale is being used by engineers or technical folks who deal regularly with numeric data, it might be more intuitive to them to associate higher numbers with higher criticality - aligning it with standard mathematical practice. But if the scale is to be used primarily by management or those more attuned to rank orderings (e.g., 1st place being the best), the reverse scale could be more intuitive. It's crucial to make the scale clear and user-friendly to avoid misinterpretations. Likewise, taking into consideration the system you plan to use for sorting and calculating data is hugely significant.
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Answer: There is a debate on whether higher criticality levels should be associated with higher or lower numerical values. It's important to consider the implications for sorting and calculations in the system.
Answer: The common perception is to associate the highest level of criticality with the number "1" due to its connotation of being the "first," but this may not always align with mathematical logic.
Answer: Ensuring a logical correlation between criticality levels and numerical values is crucial for effective categorization to avoid complications in sorting and calculations in the future.
Answer: Adjustments to the criticality scale can impact adherence to sorting and arithmetic principles, so it's essential to carefully evaluate and potentially revise the system to avoid limitations.
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