You cannot expect to do well in decision making without any practice. There is no such thing as a magical formula that makes one good at decision making or a bad one. A lot of research and a lot of experience are needed. The models might sound simple, but to make them work you will have to use a lot of your time. If you are not going to put in your time and effort then you will never master these models.
Do not think of these models as the answer to your every problem. They are just tools to help you in the decision making and they are not the answer to all problems. For example, you need to ask yourself before taking a decision whether it is worth wasting my time and energy on it. If yes, then go ahead, otherwise try and look for a better alternative. This is where you will learn about the power of decision models.
Before using the decision making models you need to understand a few things. Firstly you need to understand the concepts behind these models and how they work. Secondly you need to know that all the models are not meant for all the cases. Certain models will work perfectly fine for decision making in banking but will completely fail when it comes to decision making in engineering and design.
Another important thing that you must know is that no one can predict your future. You are not a machine that can be made to run and function like a machine. Therefore, you cannot expect to follow the exact instructions of these decision making models. Rather you need to adapt the model to your business needs.
Your decision making ability will be strengthened if you learn how to use your decision making skills. You will need to make a few test cases and run some experiments with the model to see if it fits your business or not. Only after you are satisfied with the model should you start using it. There is no point in reinventing the wheel if you do not know how to use it properly.
A few popular decision making models work very well. The IRR model or the Interactive Research Registry has been proven to be very successful. The main reason why it is so effective is because it uses your human decision-making ability to identify the best solutions. The other decision models work by having you check boxes to rate the various options available. However, this is not a very good model to use because there are too many things to check and you are forced to accept answers on all the questions you are given.
When you have enough data and have tested all the possible solutions then you can set up the model to choose the best solution. To use these models effectively, you need to ask plenty of questions. This will help you build a good understanding of the business. Once you understand how the models work you will be able to make the most of them.