A preferred option is not a real choice if it cannot be carried out.
Decisions depend on both what an agent wants and what is feasible. A budget, time limit, skill requirement or available site can rule out an option or change its opportunity cost. Information helps estimate consequences, but a forecast is not a realised result and one group's response may not represent everyone. Identify the missing evidence that could change the comparison. A useful recommendation names the objective, checks feasibility and explains how the available evidence supports the choice, rather than assuming that the largest headline benefit settles it.
- Feasibility and constraints
- A feasible option can be carried out with the available resources. Constraints are limits, such as a fixed budget or two staff-hours. An attractive option may still be impossible under those limits.
- What evidence shows
- A forecast estimates what may happen; it is not an observed result. A survey of one small group tells us about its responses, not necessarily everybody's views or the benefits they would receive.
- Useful missing information
- Information is useful when it could change the choice. For example, knowing whether enough staff can be found could turn an unavailable course into a feasible alternative.
Worked example: Choosing a student support session
A school has one room and two available teacher-hours next week. A study-skills workshop needs two teacher-hours; a proposed practical course needs four. A survey of 20 club members favours the practical course. Other students were not surveyed.
- Check the resource constraint first. The four-hour course is not currently feasible unless extra teacher time or a redesigned course becomes available.
- The survey provides evidence about the 20 respondents' preferences. It does not establish the preference of all students or how much either course improves learning.
- If the objective is useful support next week, the school can compare the feasible workshop with the best other feasible use of the room and teacher time.
- Before committing to a later practical course, collect evidence on wider demand, required staffing and likely benefits. More information is worthwhile when it could change the choice enough to justify its collection cost.
Watch out for this
Choose the option with the largest estimated benefit even if the resources are unavailable.
A recommendation must fit the constraints or explain a credible way to change them. An infeasible option is not automatically the next-best feasible alternative.
Check your understanding
A plan needs four staff-hours, but only two are available. What is the strongest conclusion?
- It is not feasible as specified; extra resources or a revised plan are needed.
- It has no benefit for anyone.
- It must be chosen if a small survey prefers it.