WHAT YOU WILL BE ABLE TO DO
Make a small everyday decision using explicit criteria and a check on your assumptions.
A decision table helps you see your thinking; it cannot decide what matters for you. Start with non-negotiable requirements, then compare the remaining choices using a few distinct preferences. More columns do not necessarily mean better judgment. Closely related columns can count the same advantage twice.
You will need
- Two or three realistic options
- Paper and a pencil or calculator
- Enough factual information to check the important requirements
THE METHOD
Step by step
Write the decision in one sentence
Define who it is for and when a choice is needed. “Choose a place for six friends to meet on Saturday afternoon” gives your comparison a boundary.
Set the must-haves
List requirements that a choice must meet, such as accessibility, availability or a firm budget limit. Verify them. Eliminate options that fail; do not let several pleasant extras compensate for a true requirement.
Choose a few separate preferences
Pick three useful differences, such as travel convenience, quietness and flexibility. Describe what good means for each. Avoid including both “nearby” and “short travel time” unless they measure genuinely different needs.
Give each preference a weight
For practice, use weights of 3, 2 and 1 from most to least important. Score each option from 1 to 3 using the same meaning throughout: 3 is better for your purpose. Label unknown information instead of quietly assigning an average.
Calculate and inspect
Multiply each score by its weight and add the results. Look beyond the total: which criterion creates the difference? A slightly higher score may be less meaningful than uncertainty about the main assumption.
Test the decision and choose
Ask whether a reasonable change in a weight or an unknown score would reverse the result. If so, gather the one fact most likely to matter. Otherwise choose, name the tradeoff you accept and stop reopening the comparison without new information.
SEE IT IN PRACTICE
Two suitable meeting places
Both venues meet the access and availability requirements. Weight quietness 3, travel 2 and flexibility 1. Venue A scores 3, 2, 1: 9 + 4 + 1 = 14. Venue B scores 2, 3, 2: 6 + 6 + 2 = 14. The tie tells you to discuss the tradeoff, not invent extra decimals. If the conversation must be quiet, that preference may deserve to become a requirement.
Illustrative exampleIf it does not go to plan
- Using numbers to hide uncertainty
- Write “unknown” and check a material fact rather than making the table look complete.
- Believing a total proves the correct answer
- The total reflects your inputs. Inspect those inputs and the people affected.
BUILD THE SKILL
A little more capable each time
- First attempt
Compare two low-stakes options with three preferences.
- Use it for real
Change one weight and see whether the choice changes.
- Take it further
Ask another affected person which requirement or assumption you missed.
CHECK YOUR LEARNING
Can you do it?
Judge the result against these signs. If one is missing, return to the relevant step and try again.
- Requirements are checked before scoring.
- The criteria do not repeatedly count the same benefit.
- You can explain the accepted tradeoff without pointing only to a total.
Explain it to yourself
Try answering before opening the explanation.
Can a great score compensate for an inaccessible venue when access is essential?
No. A true requirement must be met before an option enters the preference comparison.
Two options tie. What should you do?
Inspect the meaningful tradeoff and uncertainty. Discuss what matters or check a missing fact; a tie is not a reason to manufacture precision.