Target Condition vs. Target

Target Condition vs. Target

By Discovery Lean Six Sigma

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This search question landed someone on my site yesterday, and I thought it would be a good one to try to answer specifically:

why is lean manufacturing preferred to implement target condition as compared to target?

In other words, what is the difference between a “target” and a “target condition?”

Where this gets sticky is that there isn’t any canonical definition of either term. There are people who use “target” to describe what I mean when I say “target condition.” So I think it is probably best to focus on that term: “Target Condition.”

“Target Condition” = “Target Process”

A team I am working with is bringing up a new (to them) product line. Their short-term target is to complete 8 units / day. But just saying that doesn’t describe the way they want the process itself to operate.

The Target Condition for the line is unit-by-unit flow in critical parts; with order-by-order flow in others (where we can’t overcome batching at the moment). To that end, we have created some guidelines for the layout and movement of work; limits on work-in-progress inventory, etc.

Block diagram of flow line 768w, 1024w, 1306w" sizes="(max-width: 700px) 100vw, 700px">

We know that this can’t be achieved right away, but aren’t sure what problems will surface as we try. Thus, the effort is focused on trying to operate to the target process in order to surface those obstacles so they can be systematically addressed.

So – to answer the question “Why [does] lean manufacturing prefer to implement a target condition as compared to a target?” – Unless we know how we want the process to operate, we have no point of comparison for how it is actually operating.

Without the ability to compare “What should be?” with “What actually is?” we cannot identify the gaps we need to close, the problems we need to work on to get there.

By: Mark
Posted: June 14, 2019, 3:10 am

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