Basic stability

Basic stability: the foundation for continuous improvement

Basic stability is a crucial concept within Lean and refers to the presence of the necessary capacity, reliability and flexibility of the 4 M's: People, Machinery, Material and Methods. Without a stable base, it is impossible to sustainably implement and sustain improvements.

A process with basic stability satisfies the following characteristics:

  • Capable: It is capable of making consistently good products.
  • Available: It can produce when needed and meets the pace of branch time
  • Flexible: It can quickly convert to different products, although it is not yet to the point of making every product in every interval (EPEx).
  • Basic stability is the prerequisite for effective Just-in-Time (JIT) production. It is the first step in a cycle of improvement that often proceeds as follows:

    1. Create basic stability.

    2. Realizing flow (current).

    3. Tuning to branch time.

    4. Implement a pull system.

    4. Leveling (heijunka).

    This cycle is repeated until the process is fully optimized.

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