Analyzing usability metrics for House of Chords

A comparative analysis of two website versions to improve the online shopping experience

Year: 2025

Role: Master of User Experience student

Discipline: UX Evaluation

Industry: Retail

Background

This project was conducted as part of my Master’s in User Experience at HEC Montréal, within the UX Evaluation course. The objective was to assess and compare two different versions of House of Chords, an e-commerce platform that sells musical instruments and accessories. The evaluation was based on demo data provided by Tech3Lab and served as a hands-on exercise to apply UX research methods in a real-world context.

Goal

The main goal of this UX evaluation was to generate actionable insights that could help House of Chords improve its digital experience and increase online sales. The study aimed to identify which version of the website delivered a better online shopping experience, focusing on key UX metrics such as efficiency, effectiveness, user satisfaction, and user perception.

Method

The evaluation was based solely on an Excel file containing pre-collected data from user tests. This dataset included:

• Quantitative measures:

  • Task success rates

  • Time on task

  • WebQual questionnaire scores

  • CSAT (Customer Satisfaction) scores

• Qualitative feedback:

  • User responses to a one-question post-test interview

Using this data, I led the analysis to determine which version of the website performed better and, most importantly, why. To ensure the reliability of the findings, I used Tech3Lab’s UX Calculator to test for statistical significance across the key metrics.

Results

Slide deck