Glosario de términos


Andon- Visual systems which to warn of problems in the processes. It can be as simple as raising your hand in class when you do not understand the explanation, press a buzzer from a hospital bed when a health complication occurred or a lights system in a production line that turn on when defective parts are detected. The aim is to identify and resolve a small problem as soon as possible, not to give the opportunity to make a big one.


Jidoka- Jidoka, not a literal translation of the Japanese but can be translated automatically controlling defects. Osenseis proposes that microwaves are considered as one of the best known jidokas. Let’s see how to automatically control the defects that can occur when a glass of warm milk:

Default 1 – Incorrect heating temperature. Once you have the right combination of time and power always have a glass of milk at the perfect temperature.

Default 2 – Lack of direct supervision. It is not necessary that controls the activity of the microwave. At the programmed time, it turns off when the heating time ends

Default 3 – dirty bucket. It is produced by heating directly on the glass.


KAIZEN- It can be translated as continuous improvement. It is based on small steps, small actions, small and simple improvements that we do every day. When we talk about Lean, Kaizen (continuous improvement) is considered the skeleton holding up everything. We need to grow, evolve, enrich our day by day and the things we do. That is continuous improvement.


Poka Yoke- It means “mistake-proofing” in Japanese. It’s something that helps us to prevent mistakes. One of the most widespread is USB; you only have a position as correct. The freezer drawers are numbered to know the order in which we have to place them.

Project Management- A project is a set of activities to be undertaken to achieve an objective. For example, organizing a wedding, the preparation of the Olympic Games or the construction of a building. Normally projects are unique and unrepeatable and often have a specific date in which they have done: the wedding day, the opening of the Olympics or the date of delivery of the building. In a project must coordinate many aspects. For wedding: guests, accommodation, menu, transportation to the restaurant, the details for guests, music, etc … so there you have to organize it on time, taking into account people involved and considering everything that can affect things go well.

Project Management (stages)- A project may be from the reform of our house or organizing a family meeting to plan the time of our children in their holidays. To ensure the success of a project we have to follow these five steps. Let us look through an example:

  1. Initiation-what do you want to achieve?: Fix the car.
  2. Planning: Ask for several quotes, find the best day and time to take it to the shop.
  3. Execution: Car Repairs (5 days).
  4. Monitoring and Control: We call three days and ask if everything goes well and there are no delays as expected. When we delivered the car we verify that it works correctly.
  5. Close – have we really got what we wanted, how we can improve next time: after a reasonable time, we believe that the fault has not been resolved and we are back to bring the car to the shop or on the contrary we closed the issue as the car does not give problems.


Rework- It consists of having to repeat something because we have not done right the first time. For example having to return back to the store or pay more for a bottle of wine to have to buy it at a bar near our house because we had not included in the shopping list. One of the things we intend with Lean is just to work as little as possible, and this can be achieved if we can do it right the first time avoiding mistakes or failures that make us have to work again to correct what we did wrong the first time . That is, there is more work the hardest working but the least have to redo their work.


Standardization- It is to make everything, by anyone, in the same way. For example; no matter who makes the recipe because if you follow the steps correctly, the food will be perfect. Every car mechanic carries out the same activities in the workshop with the same criteria; oil review, filter change, etc…


The three restrictions- When we make decisions or planned projects (holiday hangouts with friends or family, leisure activities …) we have to keep in mind that everything has a price (not necessarily economic) and the price we pay for our decisions involves balancing: time , cost and meet our goals. If we neglect one of these other variables will be affected. If you want a four-wheel drive immediately have to assume that the cost may be higher. If I’m not willing to pay more than a fixed amount, I will devote more time to request quotes from several brands and several dealers, consider the second-hand market, etc … or rethink whether the target was a four-wheel drive is what I really need. Maybe another type of vehicle: station wagon, minivan, crossover … may also cover my needs.

Throughput time- is the time from which something is produced until the customer consumes it. For example since it makes a loaf of bread until the customer purchase in the store or from a patient enters the consultation because it has to be operated until the intervention was performed. The production time is calculated as:

Production time = Process time + Inspection time + movements time + timeout.

And it should help us to reflect on whether each of the intermediate times is absolutely necessary (adds value) or can be eliminated / reduced.

To friendlean- It is a verb invented by Osenseis. It mixes the word friend and lean. To friendlean means to make friends who are interested in Lean.

To LoveLean- It describes those “FriendLean” whose admiration for Lean has triggered unconditional love. You can recognize people suffering from “LoveLean” because: a) they say Japanese words all the time (muda, kaizen, kanban, Jidoka, Poka Yoke …), b) they face the life in a simple way and c) they seem to have some difficulties with math because they repeat phrases similar to: doing more with less, less is more, etc …


Visual Management- Osenseis considers visual management an easy way to make life easier and orderly, just through small visual cues. The crosswalks signpost and organize pedestrians traffic, the digital panel with number turns lets us know who should be treated in a queue, the car dashboard allows us to visualize the most important information while driving: speed, rpm, engine temperature, etc … Visual management is one of the pillars of Lean, and if we talk about Pop-Lean, probably it is the most important point.