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POE Unit 5 • Lesson 5.3

Requirements, Criteria, and Constraints

Focus question: How can a mission problem become measurable engineering requirements, success criteria, and design constraints?

Mission Briefing

Today’s Plan

A focused sequence that advances the capstone without creating unnecessary documentation.

Opening promptConcept modelGuided workInteractive applicationEvidence checkExit ticket
Lesson Targets

What You Will Be Able to Do

Learning Target

I can distinguish requirements, criteria, and constraints and write measurable verification statements.

Evidence

Capstone requirements and verification table

Success Looks Like

Each requirement is testable, each criterion has a target, and each constraint states a real limit.

Activity Flow

How the Lesson Moves

Each step produces a decision, artifact, or test result needed for the capstone.

1. Translate stakeholder needs

Convert needs into functions the system must perform.

2. Define measurable success

Assign targets, tolerances, and verification methods.

3. Identify limits

Document safety, time, material, size, and budget constraints.

Lesson Interactive

Classify the Design Statements

Apply the lesson concept to a capstone aerospace-systems scenario. Use the feedback to correct your reasoning before completing the main deliverable.

Design Statements

  1. The system shall transport inspection equipment between work zones.
  2. The system shall complete the route in 90 seconds or less.
  3. The system must fit within a 450 mm × 450 mm footprint.

Remember: A measurable criterion includes a quantity, condition, or pass/fail threshold.

Classify each statement by its role in the design specification.
Today’s Work

Main Deliverable

Capstone requirements and verification table

Create one focused engineering artifact that demonstrates today’s capstone progress.

  • Write at least four testable requirements with measurable criteria.
  • List at least three constraints and a verification method for every requirement.
Exit Ticket

Capstone Debrief

1

State the most important engineering decision your team made today.

2

Name the evidence, requirement, interface, or risk that supports that decision.

3

Identify the next action and the person responsible for completing it.

Resources

Lesson Resources

Presentation

Lesson 5.3 PowerPoint

Use the presentation to review the lesson concepts, examples, and activity directions.

Course Hub

Principles of Engineering

Return to the POE course hub for units, resources, certifications, and course information.

Unit Capstone

Aerospace Systems Capstone

Return to Unit 5 to review the capstone sequence, deliverables, and project challenges.