1. Multitasking can make you stupid
2. To give up halfway is to do nothing at all
1. Imagine (or, if you’re unfortunate, think back) you’ve only partially done 4 tasks: the bathroom walls are half painted; the dog food is still in the trunk of the car; the check for the loan has been written, But it hasn't been sent; the leaves have been swept into a pile, but haven't been shipped. As far as these things go, you're putting effort into creating no value because it's only when the bathroom paint cans are removed from the bathroom, the dogs are fed, the money is received at the bank, and the yard leaves are cleaned out , your hard work is worth it. To give up halfway is to actually do nothing.
2. If at the end of the iteration, things are only halfway done, you will be worse off than not starting at all. You expended resources, put in effort and time, and in the end got nothing. Instead of producing a semi-finished car, it's better to produce some little things that actually come in handy.
3. Unfinished work and unused product are two sides of the same coin that are essentially the same: you put in the effort and you end up with no positive results. Do not do this.
3. Get things done right at once
1. The best time to deal with a problem is when you find it, not long after you find it
2. The human brain is limited, we can only remember so many things, and we can only concentrate on one thing at a time. It is for this reason that it will take more time if we do not correct the problem as soon as we find it, but delay it until some time in the future. When you're working on a project, and your mind is focused on it, and you know all the reasons for doing something, there's a complex structure in your mind associated with it. It's very difficult to re-establish that structure after a few weeks, you have to remember all the factors that you considered when making a decision, you have to re-establish the thought process that led you to make that decision, be yourself again, pull yourself Back to thinking that no longer exists. Doing these actions takes time, and it takes 24 times as long as it would take you to correct the problem as soon as you spot it.
Fourth, the longer the working hours, the lower the efficiency
1. If a team leader is on vacation to make sure the office is in order, then it means he is not managing his team
Fourth, to ensure the rationality of the work
The four unreasonable phenomena are as follows:
1. Goals are ridiculous: you can set some challenging goals, don’t set some unrealistic goals
2. Expectations are too high: Teams cannot rely on a heroic mission to save the project
3. Overburdened: Waste time by not doing meaningless things
4. Emotional waste: Don't be a nuisance
5. Ensure the flow of work
1. "Fluency" is rooted in "discipline". There is no wasted action, nothing superfluous in the whole process, just concentrate on exerting the ability of human beings. Anything that distracts you creates waste. If you look at work in terms of discipline and fluidity, you might also do something magical.
6. Waste is a crime
1. The core of the Scrum process is rhythm. Rhythm is very important to human beings. It is rooted in the deepest part of the brain. We are all trying to find rhythm and find the rhythm in all aspects of life.
2. What Scrum does is create a pattern that is different from this, we are habit driven animals, Taiichi Ohno talks about three types of waste. Muri, refers to overloaded equipment or overloaded workers, usually due to a faster and more demanding work rhythm than the original design. Mura refers to the unbalance of production operation. For example, the scheduling of the production system is not in line with the needs of the customer, but is determined by the production system itself; or the uneven work rhythm causes the operator to be in a hurry at times and idle at other times. Muda refers to all activities that do not create value for customers but consume resources. The idea of avoiding these wastes is highly consistent with Deming's cycle of PDCA, which is the plan, do, check, and act that I've described before: planning means avoiding unreasonable scheduling of activities, and executing means avoiding inconsistencies with the plan , checking means avoiding waste, and action means the unity and practice of will, motivation, and determination. I'll go over the steps one by one and point out what to avoid - avoid waste from inventory, avoid waste from screwing things up the first time, avoid waste from futile efforts, and avoid waste from unreasonable expectations.