Quality Function Deployment (QFD)

What is Quality Function Deployment?

Quality Function Deployment (QFD) translates customer requirements ("Voice of the Customer") into engineering specifications. The House of Quality matrix links what the customer wants to how the organization can deliver it.

Toolbar — Button Reference

The toolbar at the top of the page contains all the actions you need to manage your analysis:

• New   Clears all requirements and starts a blank analysis.
• Load   Opens a previously saved .json file and restores all data and revision history in read-only mode.
• Load Example   Loads a pre-filled example QFD matrix. Also opens in read-only mode.
• Revise   Only available when a document is in read-only mode. Opens a dialog to register a new revision — date, description and author — then unlocks all fields for editing. Revision details are saved to the JSON and appear in the exported PDF.
• Save   Downloads the complete analysis as a .json file, including all requirements, relationships and the full revision history. Use this file to reload or share the analysis later.
• Export PDF   Generates and downloads a fully formatted PDF report containing: the QFD House of Quality matrix, the priorities and the revision history.

How to Use This Tool — Step by Step

• Step 1 — Add Requirements: Navigate to Input Data to add customer needs and technical specs.
• Step 2 — Edit or Delete Items: Click directly on any name to edit it inline, or use the + / - buttons. Both actions are blocked in read-only mode.
• Step 3 — Define Relationships & Correlations: Use the internal tabs to map how "Whats" connect to "Hows", and how "Hows" connect to each other.
• Step 4 — Review Results: Switch to the Results & Matrix tab to view the automatically generated House of Quality and Priority Scores.
• Step 5 — Save your work: Click Save to download a .json file you can reload at any time.
• Step 6 — Export the report: Click Export PDF to download a print-ready PDF covering the matrix and priority table.
• Step 7 — Manage revisions: Load a saved file, then click Revise to register changes and keep a traceable revision history.