Taking this a little further, you are a shift manager and receive an urgent update from your client based on the update every single transaction processed from that moment onwards need to follow a slightly modified process. You swiftly inform everyone in your shift about this update and take care of the situation. But how would you ensure that the shift managers and analysts working in other shifts would ensure this update is followed? You can email or message them. But what if the shift manager doesn't read the email or message in time? To avoid this potential pitfall you decide to do this on a big chart paper you write the update in big letters and stick this chart paper at a suitable location visible for the entire shop floor.
This ensuring that the update is not missed. by anyone. in this situation as well, the cause is known and the solution is simple. However, you have gone the extra mile of putting the update on a chart paper and then putting the chart paper on a visible location of the shop floor, you have created a small improvement in the process. This effort of creating small improvements is termed as Kaizen in Japanese. Kaizen is a combination of two words, Kai and Zen.
That is change for the better. This when you come across situations where the cause is known and the solution is simple, you can either use, just do it or Kaizen