UX Curve

Method suitability

Study type

Field studies
XLab studies
Online studies
Questionnaire

Development phase

Concepts
Early prototypes
Functional prototypes
XProducts on market

Studied period of experience

Before usage
Snapshots
An episode
XLong-term UX

Evaluator / Info provider

UX experts
XOne user at a time
Groups of users
Pairs of users

Data

XQualitative
XQuantitative

Applications

XWeb services
XPC software
XMobile software
XHardware designs
Other:

Requirements

Trained researcher
Special equipment

Summary

UX Curve method aims at assisting users in retrospectively reporting how and why their experience with a product has changed over time.

Description

The participant draws one or more curves to describe how the experience about a product has changed over time. The curve drawing area is formed of a timeline and a horizontal line that divides positive and negative experiences. Additional horizontal and vertical lines can be used as more precise scales for the quality of experience and for time periods. UX Curve is a pen-and-paper method, but there is a related tool called iScale, described elsewhere in this methods set.

Strengths

Helps to reveal the most impactful experiences over time

Weaknesses

Counting on memories rather than reality

References describing the method

Kujala, S., Roto, V., Vaananen-Vainio-Mattila, K., Karapanos, E., Sinnela, A.: UX Curve: A Method for Evaluating Long-Term User Experience. Interacting with Computers (2011). http://dx.doi.org/10.1016/j.intcom.2011.06.005

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