The effect of problem solving method using brain-storming

The other day, I watched series of lectures of Stanford, Tina Seelig's crash course of nurturing entrepreneur. And I watched the first 2 lectures. Here is what those lectures gave me and what I felt.
The first lecture was about brain storming. There are some rules doing that. Which topic to choose. The topic should be appropriate size. But set difficult one that requires a lot of ideas. For example, come up with 500 menus of ice cream in 30 minutes, even if you won't make it, but you got 250 menus that is lot enough. Next, Where to have a brain storming. The room should have shared idea board such as white board, and the room should be spacious enough that participants can freely move and write any idea. Next, who to invite. The number of people should be 4 to 7 people, the manageable size. And people all should have a wide range of perspective. Next, how to do that. The brain storming should go with people all standing, all have a equal right to speak out and write down their ideas so that everyone should have a pen, also they are free to write down on memo what you come up when it is not possible to speak out because others are speaking. Also, participants should accept any ideas coming from people, any curious and crazy, not-practical ideas should be welcome. Also, you shouldn't use "Yes, but-" speaking, but should use "Yes, and-" to expand the topic. Basically one idea becomes very nice idea in the process of expanding by using "Yes, and-" method. Repetitive expanding sometimes makes a jump that makes it wonderful idea. And to manage ideas that have come up so far, on white board, the problem or topic should be centered, so that it will be much easier to see the whole picture.
These are how to do brain storming in detail. But this is a just one part of the process of production actually. The second lecture gave me a method of how to implement this method and how to define problem, and the attitude of creating prototype.
First, we have to define the problem. We can find a lot of problems of anything, in the lecture, students were asked to find problems of the classroom as much as they can in 10 minutes, and found out that it is not that hard to find if you are willing to do that. And those problems are chances, for business or yourself. By improving the object by removing those problems, that will become chances of business. Now you've got so many problems, and by interviewing with people about what they hate about the object, you can define one problem that seems the root of a lot of problems. This process will convert a lot of problems into a small but most effective point to solve. In the lecture, students were asked to do this process about the problem of name card. And each person defined the problem. And started to think about how to satisfy him/her by creating a better name card.
Next, now you have defined the problem, and now it is time to do brain storming that we learned in the 1st lecture, but this time alone. By doing brain storming, you can see the problem from a variety of perspectives, and find a lot of elements. Also, the question like "Why do you do this" will help. This Why question will expand the problem into a larger size. For example, if you want to make a bridge, you ask "why do I do this?", and find out that you want to go over a stream, and find out you don't necessarily make a bridge, but you can swim or use a ship. And also by asking one more why question, "why do you want to go over a stream" and you will find that you want to go to school over there, and you will see a lot of other solutions. Now you've got a lot of ideas of solving the problem, now it is time to make a prototype. The prototype should not be realistic and practical, you can use a technology that still not discovered. you just create it in a short period of time with a cheap materials, so that you don't have a passion to the prototype that will make it much easier to adopt feedback later. One problem of companies is that trying to make a perfect prototype, that pride comes up and it will be difficult to make it better. Once you make the prototype, show it to the people, people having the problem, and take the feedback into account. And you can redefine the problem and to the same process.
I thought it is so exciting that in a short period of time, we can create prototype. And I find the circle of the process very useful for any objects and things. I think the most important part is to define the problem, by watching around me, I see a lot of problems which are the chances. Having problems is the start of the improvement which connects to business.