Lean makes extensive use of the term flow. As a result, one of the most common teaching analogies Lean practitioners use is that of a meandering river being slowly but surely turned into a deep, straight, fast moving channel. That flow starts at the supplier and finishes at the customer. Read more…
DMAIC is an acronym for Define, Measure, Analyze, Improve, Control. It provides a systematic way to approach a problem. Using the DMAIC methodology to structure a problem-solving effort helps prevent skipping steps, which can lead to poor solutions. While is seems foreign at first, when you look more closely at Read more…
Demand windows are periods of time when customer demand is relatively stable. For slow growth or mature products, the window can be extremely long. For other products, demand windows can change seasonally (think water skis or snow shovels), hour-by-hour (think fast food), or can trend steeply up or down. In Read more…
There are two basic definitions for decision point. The first is on a macro level. It is the latest point in time when a decision must be made within a plan. In many cases, it is advantageous to delay making a final choice until the last possible moment—it keeps options Read more…
Daily improvement is the strategy of making constant, incremental improvements each and every day in order see impressive long-term gains. While many people see kaizen as just a week-long event, it is much more powerful when an entire workforce engages in daily improvement efforts. Daily improvement does not have to Read more…
A decision tree is a tool that helps calculate the expected values of the choices that are available to you. It uses probabilities of events happening and estimates of each possible outcome to help you make a decision. For example, if you called in to a radio contest where you Read more…
Discipline is the process of changing a behavior to make it conform to a rule or standard. For many people, discipline has a negative connotation to it, especially when it is their behavior that is being adjusted. In truth, though, discipline is more than repeating the standard and doling out Read more…
Delegation is the act of appointing another person or group, usually a subordinate, to perform a specific task or role. For delegation to be successful, it should include the transfer of power along with the assignment—the authority of the subordinate to act on the boss’s behalf. Lean starts a mass Read more…
Defects are the undesirable results of an error in a process. In most cases, this shows up as a product or service not conforming to a specification. Defects are often expressed as either yield of good parts, such as a 95% yield (meaning a 5% defect rate), or as Defects Read more…
Decision making is the process used to select from two or more competing options. You make decisions on who you will marry (one open spot, multiple candidates), where to go on vacation (vacation locales competing for your time and money), and how you want to invest the ten grand you Read more…
Document your process flow to get the most out of your Lean efforts. Recording your processes helps provide consistency in your output and spurs productivity improvements. It also promotes teamwork through knowledge sharing, and makes job rotation and cross-training possible. Documentation is simply the act of recording your process steps Read more…
Disputes are disagreements or differences of opinion and can get heated. Disputes at work are frequently about the way a process should be performed. In Lean companies, the challenge is that processes are always changing. This provides multiple opportunities for disputes to arise. The good news is that most companies Read more…