Key Metrics English

 

I. Experiment / Use cases trực tiếp về Size & Fit (1–10)

1. New size recommendation algorithm

In an experiment testing a new size recommendation algorithm on the product page to reduce returns due to incorrect sizing; North Star Metrics; Size-related Return Rate; Net Revenue per Order; Primary Success Metrics; Size-related Return Rate in experiment; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Time on Product Page; Secondary Metrics; Recommendation Click Rate; Size Change Rate before Purchase; Fit Feedback Score.

2. Personalized size suggestion

In an experiment evaluating a personalized size suggestion feature on the product page to improve fit accuracy; North Star Metrics; Size-related Return Rate; Repeat Purchase Rate; Primary Success Metrics; Size-related Return Rate in experiment; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Drop-off Rate; Secondary Metrics; Fit Feedback Score; Recommendation Usage Rate.

3. Size guide redesign

In a study redesigning the size guide to improve users’ understanding of sizing information; North Star Metrics; Conversion Rate; Size-related Return Rate; Primary Success Metrics; Size Guide Usage Rate; Conversion Rate on Product Page; Guardrail Metrics; Time on Product Page; Exit Rate; Secondary Metrics; Scroll Depth; Help Link Click Rate.

4. Adding body measurement input

In a test introducing a body measurement input flow to improve size prediction quality; North Star Metrics; Size-related Return Rate; Net Revenue per Order; Primary Success Metrics; Measurement Completion Rate; Correct Size Selection Rate; Guardrail Metrics; Drop-off Rate; Form Error Rate; Secondary Metrics; Time to Complete; Field Correction Rate.

5. Default size pre-selection

In an experiment introducing default size pre-selection to simplify the size choice process; North Star Metrics; Conversion Rate; Size-related Return Rate; Primary Success Metrics; Conversion Rate in experiment; Add-to-Cart Conversion; Guardrail Metrics; Size-related Return Rate; Complaint Rate; Secondary Metrics; Size Change Rate; Manual Override Rate.

6. “Fits true to size” badge

In an experiment adding a “fits true to size” badge to support user decision making; North Star Metrics; Conversion Rate; Size-related Return Rate; Primary Success Metrics; Conversion Rate on Product Page; Add-to-Cart Conversion; Guardrail Metrics; Return Rate; Complaint Rate; Secondary Metrics; Badge Click Rate; Trust Interaction Rate.

7. Brand-specific sizing normalization

In an experiment normalizing sizing across brands to reduce brand-level fit inconsistencies; North Star Metrics; Return Rate by Brand; Net Revenue per Order; Primary Success Metrics; Size-related Return Rate; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Complaint Rate; Secondary Metrics; Fit Feedback Score; Brand-level Variance.

8. Size recommendation in add-to-cart modal

In an experiment adding size recommendation inside the add-to-cart modal to influence last-mile size decisions; North Star Metrics; Conversion Rate; Net Revenue per Order; Primary Success Metrics; Add-to-Cart Conversion; Checkout Conversion; Guardrail Metrics; Drop-off Rate; Time to Checkout; Secondary Metrics; Modal Interaction Rate; Close Rate.

9. Mobile vs desktop size UX

In a comparison of size selection experience between mobile and desktop devices; North Star Metrics; Conversion Rate; Size-related Return Rate; Primary Success Metrics; Conversion Rate by Device; Add-to-Cart Conversion by Device; Guardrail Metrics; Error Rate; Crash Rate; Secondary Metrics; Time on Product Page; Tap Error Rate.

10. Cold-start size recommendation

In an experiment evaluating size recommendation performance for first-time users; North Star Metrics; First Purchase Success Rate; Size-related Return Rate; Primary Success Metrics; Return Rate for New Users; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Onboarding Drop-off Rate; Secondary Metrics; Time to First Purchase; First-session Abandonment Rate.

II. Bối cảnh nghiệp vụ Size & Fit (11–15)

11. High return categories

In an experiment targeting product categories with high return rates; North Star Metrics; Category Return Rate; Net Revenue per Order; Primary Success Metrics; Category Return Rate in experiment; Margin per Order; Guardrail Metrics; Conversion Rate; Stock-out Rate; Secondary Metrics; Order Value; Category Mix.

12. New brand onboarding

In an experiment onboarding a new brand with unknown sizing characteristics; North Star Metrics; Return Rate by Brand; Net Revenue per Order; Primary Success Metrics; Return Rate by Brand in experiment; Correct Size Selection Rate; Guardrail Metrics; Complaint Rate; Conversion Rate; Secondary Metrics; Fit Feedback Score; Support Ticket Volume.

13. Cross-border sizing

In an experiment addressing cross-border sizing differences between markets; North Star Metrics; Return Rate by Country; Net Revenue per Order; Primary Success Metrics; Size Exchange Rate; Cross-border Return Rate; Guardrail Metrics; Conversion Rate; Delivery Failure Rate; Secondary Metrics; Delivery Time; Customs Delay Rate.

14. Seasonal new fit patterns

In an experiment launching seasonal collections with new fit patterns; North Star Metrics; Return Rate by Collection; Repeat Purchase Rate; Primary Success Metrics; Return Rate by Collection in experiment; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Complaint Rate; Secondary Metrics; Fit Feedback Score; Style-level Return Rate.

15. Premium vs fast-fashion sizing

In an experiment comparing sizing performance between premium and fast-fashion segments; North Star Metrics; Net Revenue per Order; Customer Lifetime Value; Primary Success Metrics; Return Rate by Segment; Margin per Order; Guardrail Metrics; Conversion Rate; Discount Rate; Secondary Metrics; Basket Size; Repeat Purchase Rate.

III. Feature nâng cao cho Size & Fit (16–20)

16. Fit confidence score display

In an experiment displaying a fit confidence score to support size decisions; North Star Metrics; Size-related Return Rate; Conversion Rate; Primary Success Metrics; Recommendation Click Rate; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Time on Product Page; Secondary Metrics; Confidence Score Distribution; Hesitation Time.

17. Social proof “80% kept this size”

In an experiment adding social proof about size retention to influence choice; North Star Metrics; Conversion Rate; Size-related Return Rate; Primary Success Metrics; Conversion Rate on Product Page; Add-to-Cart Conversion; Guardrail Metrics; Return Rate; Complaint Rate; Secondary Metrics; Trust Interaction Rate; Badge Visibility Rate.

18. Virtual fitting room

In an experiment introducing a virtual fitting room experience; North Star Metrics; Size-related Return Rate; Net Revenue per Order; Primary Success Metrics; Feature Adoption Rate; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Page Load Time; Secondary Metrics; Time in Feature; Feature Abandonment Rate.

19. 3D avatar try-on

In an experiment launching a 3D avatar try-on feature; North Star Metrics; Size-related Return Rate; Conversion Rate; Primary Success Metrics; Feature Adoption Rate; Correct Size Selection Rate; Guardrail Metrics; Time on Product Page; Rendering Error Rate; Secondary Metrics; Session Length; Interaction Depth.

20. Fit feedback collection

In an experiment collecting fit feedback after delivery to improve future recommendations; North Star Metrics; Size-related Return Rate; Repeat Purchase Rate; Primary Success Metrics; Feedback Submission Rate; Coverage of Fit Feedback; Guardrail Metrics; Conversion Rate; Survey Drop-off Rate; Secondary Metrics; Fit Feedback Score; Future Return Rate.

IV. Tình huống rủi ro cần guardrail (21–25)

21. Aggressive size override

In an experiment aggressively overriding user size choices; North Star Metrics; Conversion Rate; Net Revenue per Order; Primary Success Metrics; Override Acceptance Rate; Correct Size Selection Rate; Guardrail Metrics; Complaint Rate; Refund Rate; Secondary Metrics; Manual Size Change Rate; Customer Support Contacts.

22. Forcing size before add-to-cart

In an experiment forcing size selection before allowing add-to-cart; North Star Metrics; Conversion Rate; Net Revenue per Order; Primary Success Metrics; Add-to-Cart Conversion; Checkout Start Rate; Guardrail Metrics; Drop-off Rate; Time to Purchase; Secondary Metrics; Back Navigation Rate; Form Error Rate.

23. Removing size guide

In an experiment removing the size guide from the product page; North Star Metrics; Conversion Rate; Net Revenue per Order; Primary Success Metrics; Conversion Rate on Product Page; Add-to-Cart Conversion; Guardrail Metrics; Return Rate; Complaint Rate; Secondary Metrics; Customer Support Contacts; Help Page Views.

24. Auto-switching size

In an experiment automatically switching the selected size based on the algorithm; North Star Metrics; Size-related Return Rate; Net Revenue per Order; Primary Success Metrics; Auto-switch Acceptance Rate; Correct Size Selection Rate; Guardrail Metrics; Complaint Rate; Manual Revert Rate; Secondary Metrics; Override Frequency; Refund Rate.

25. “Likely wrong size” warning

In an experiment adding a warning for likely wrong size selections; North Star Metrics; Size-related Return Rate; Net Revenue per Order; Primary Success Metrics; Size Change Rate after Warning; Correct Size Selection Rate; Guardrail Metrics; Conversion Rate; Warning Dismiss Rate; Secondary Metrics; Warning Click Rate; Hesitation Time.



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