Constraints on a solution
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Which one is a constraint on a school app project?
2. A team has a budget of $0 and can only use free tools. What is this?
3. True or false: A constraint is a feature the solution must do.
4. Which one is a technical constraint?
5. Your team only knows block coding. What type of constraint is this?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1Constraint: finish in 3 weeks | ARequirement: show the bus times Constraint: use only free software | |
| 2Constraint: budget of $200 | BA time limit on how long the team has to build the solution | |
| 3A technical limit: the solution must run on the school's old laptops | CA cost limit on what can be spent on the solution | |
| 4A constraint is different from a requirement: it limits how you build, not what the solution does | DThis is a feature or functional requirement, not a constraint. A constraint is a limit such as time, cost, skills, devices or software. | |
| 5Constraint: the app must have a quiz feature | EConstraint: must work on old laptops | |
| 6Constraint: our team has no coding skills, so we can ignore this | FSkills are a real constraint. Ignoring a limit on skills or resources leads to a plan the team cannot finish. |
C
Definitions
constraint
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
__________: Only 2 weeks to build the app
2.
___________: The app shows the quiz score
Constraint: Only school laptops can be used
3.
Constraint: The budget is only $20
Type: ____
4.
Constraint: Must run on old school tablets
Type: ______
5.
Constraint: The team only knows Scratch
Type: ______
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
Project: Homework planner app
B
Constraint: Budget is $50
C
Feature: Must run on iPads
D
Requirement: Shows due dates
Question 2
A
Project: Class quiz website
B
Constraint: Unlimited time
C
Plan: Week 1 design
D
Plan: Weeks 2-3 build and test
Question 3
A
Project: Class photo gallery
B
Team skill: HTML and CSS only
C
Budget: $0
D
Constraint: Buy new tools
Question 4
A
Requirement: App shows scores
B
Requirement: Users can log in
C
Constraint: App sends reminders
D
Constraint: Budget is $100
Question 5
A
Budget constraint: $40
B
Buy: drawing tool for $60
C
Money left: $10
Answer Key
Constraints on a solution
Section A: Quick Questions
Q1
A — The app must be finished in 4 weeks
Q2
A — A budget constraint
Q3
B — False
Q4
B — The program must run on the school's old tablets
Q5
A — A skills constraint
Section B: Match the Pairs
Q1
Constraint: finish in 3 weeks → A time limit on how long the team has to build the solution
Q2
Constraint: budget of $200 → A cost limit on what can be spent on the solution
Q3
A technical limit: the solution must run on the school's old laptops → Constraint: must work on old laptops
Q4
A constraint is different from a requirement: it limits how you build, not what the solution does → Requirement: show the bus times
Constraint: use only free software
Q5
Constraint: the app must have a quiz feature → This is a feature or functional requirement, not a constraint. A constraint is a limit such as time, cost, skills, devices or software.
Q6
Constraint: our team has no coding skills, so we can ignore this → Skills are a real constraint. Ignoring a limit on skills or resources leads to a plan the team cannot finish.
Section C: Definitions
Q1
constraint — A limit on how a solution can be made, such as time, cost, skills, devices or software. A constraint is not a feature; it limits what you can build.Section D: Fill in the Blanks
Q1
Constraint: Only 2 weeks to build the appQ2
Requirement: The app shows the quiz score
Constraint: Only school laptops can be usedQ3
Constraint: The budget is only $20
Type: costQ4
Constraint: Must run on old school tablets
Type: deviceQ5
Constraint: The team only knows Scratch
Type: skillsSection E: Spot the Error
Q1
C — Having to run on school iPads is a device limit, so it is a constraint. The line should start with 'Constraint:', not 'Feature:'.
Q2
B — A constraint is a limit. 'Unlimited time' is not a limit. It should be a real time limit such as 'Finish in 3 weeks', which matches the plan.
Q3
D — The budget is $0, so the team cannot buy tools. The constraint should say 'Use free tools'.
Q4
C — Sending reminders is something the app does, so it is a requirement, not a constraint. A constraint is a limit, such as 'Done by May'.
Q5
B — A $60 tool is over the $40 budget, and it would not leave $10. The tool must cost $30 to stay within the constraint.