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P2 tech definition
- 1. DECISION MATRIX AN EXTENDED TECHNICAL DEFINITION
- 2. DECISIONS… DECISIONS… DECISIONS… Which pair of shoes? What car should I buy? What university is the best choice for me? Should I get a job or an internship? What should I wear? Which design is best? How should I respond? 1
- 3. DECISION MATRIX DOWN SELECTION TOOL What is a ? • A list of values that represent different components of a decision that can be analyzed to determine performance of each option.
- 4. ENGINEERS MAKE BIG DECISIONS Everyone makes decisions2 3
- 5. DECISION MATRIX IS LIKE A CALCULATOR • Inputs: • Constraints / Requirements • Subjective wants and needs • Weights: • relative importance This Photo by Unknown Author is licensed under CC BY-NC-SA • Outputs • Scores/decision s 4
- 6. DECISION MATRIX VS PRO/CON LIST Option 1 Pros Cons Leather seats Pretty color Turbo V6 Convertible Automatic 2 years old Expensive Low mpg Option 2 Pros Cons Cheap High mpg V6 Old Manual Ugly color Fabric seats Not convertible Factorsof consideration: Seats Color Engine Mpg Transmission Cost Convertible Age TOTALS: weight s 1 1 1 5 2 5 1 2 Option #1 5 4 5 1 5 1 5 5 49 Option #2 3 3 5 5 4 5 1 4 78 Example: buying a car
- 7. RECAP: • Thorough down selection tool • Takes into account multiple factors and corresponding importance • Can be used for any kind of decision no matter how big or small THANK YOU FOR LISTENING
- 8. BIBLIOGRAPHY • Image URL’s 1. https://smartchristianwoman.files.wordpress.com/2015/10/choices-pic1.jpg 2. https://www.floridamemory.com/fpc/commerce/c620699.jpg 3. http://www.best-investments-spain.com/wp-content/uploads/2016/03/buying- house.jpg 4. https://pseudonym394.deviantart.com/art/Something-Else-That-I-m-Gonna-Call-a- Calculator-296336724
Editor's Notes
- Which pair of shoes should I buy Which design is best What car should I purchase What university should I attend Every day… People are bombarded with decisions. These decisions can be small and insignificant or they can be high stake and complicated. How do you know that your decision is actually the best decision?
- I am going to introduce a term called the “Decision Matrix” And more specifically answer the question of … What is a decision matrix? To put it simply, the decision matrix is a down selection tool. It is a list of values that represent different components of a decision that can be analyzed to determine performance of each option. It can be thought of as a sort of calculator
- In the field of engineering, most of the decisions that are made are high stake. Designs need to take into account safety, durability, functionality, cost, and time to produce a final product. Engineers need to know that they are meeting all their requirements, acknowledging all the constraints, and making the best design choice based on all their design criteria? And they do this using a decision matrix. Though it is a tool typically used by engineers, it can be useful to anyone making a tough decision or even a simple decision someone wants to visually analyze with numbers.
- The matrix consists of a list of inputs. These inputs include all factors of consideration. These could be anything from cost to color to smell, depending on the nature of what you are deciding on. Each of these factors are also given weights. This is what sets this decision tool apart from other forms of decision making. It takes into account relative importance of each factor and then it spits out values that represent how each decision compares to one another.
- Im going to contrast the pros/cons approach to decision making with the decision matrix Take this example of buying a new car. A pros/cons list can tell you if an option has what you’re looking for and what each option is lacking. But, it doesn’t quantify what pros are better than other pros and what cons are worse than another con… The design matrix does. It not only tells you that option 1 is expensive and option 2 has an ugly color, but it also takes into account that you would rather have an ugly color than a really expensive car. For this example we have a pros and cons list for two car options. From the list we can tell right away that option 1 looks like the better choice. It has a long list of pros and a short list of cons. Option 2 has more cons than pros. Taking the same two car options and putting them into a decision matrix yields an interesting result. Because the relative importance of each factor is taken into account we not only see what option has more pros but what option has more pros that matter. From the decision matrix its clear that the better choice is actually option 2.