Component Selection

Overview

A structured procedure for evaluating multiple component options against requirements, scoring them objectively, and selecting the best fit. Produces documented rationale for the selection.

Steps

Step 1: Gather Requirements

Collect all requirements that constrain selection

Step 2: Identify Options

Find candidate components that might meet requirements

Step 3: Define Evaluation Criteria

Create weighted scoring criteria

Step 4: Score Each Option

Rate each option against all criteria

Step 5: Analyze Results

Review scores and identify best option

Step 6: Document Selection

Record final choice with rationale

When to Use

• Selecting hardware components for a project (microcontrollers, sensors, motors)
• Choosing software libraries or frameworks for a system
• Evaluating vendor options for procurement decisions
• Selecting materials for manufacturing or construction
• Comparing cloud services or infrastructure options
• Making build-vs-buy decisions for system components
• Upgrading or replacing existing components in a system

Verification

• All functional requirements are captured before evaluation begins
• At least 3 candidate options were considered
• Criteria weights sum to 100 and reflect actual priorities
• Each option is scored against all criteria with documented reasoning
• Selected component meets all must-have requirements
• Trade-offs are explicitly acknowledged and accepted
• Fork points are documented for future reference