Shopping Search User Interfaces

@ University of North Carolina at Chapel Hill | School of Information and Library Science

Primary Researcher / Experimental Design + Usability Testing


Efficient Product Search Tools for Online Consumers with Little Product Knowledge: Clustering Versus Faceted Search

In this research, which led to my Master’s paper at UNC-Chapel Hill, I designed and conducted an experimental usability study by comparing three different shopping search interfaces (different types of facets/filters).

In addition to the types of shopping search interfaces, I recruited participants who have different domain knowledge backgrounds related with specific product items and explored the relationships between people’s domain knowledge (product knowledge) and their user experience in searching for specific products. Major findings included that the shopping search interfaces with the most specific types of facets (filters) provided the most efficient shopping search experience to users with little product knowledge.

Project Outcome: Master’s Paper, Efficient Product Search Tools for Online Consumers with Little Product Knowledge: Clustering Versus Faceted Search 

Abstract: This study compares and contrasts different types of search tools—clustering search, rich-faceted search, and less-faceted search—in terms of their performance in online shopping product searches. In the experiment, two groups of people, a music-expert group and a computer-expert group, conducted searches for two different products (one for a novice search and the other for an expert search). Search performance was measured on three different shopping search websites—Clusty Shopping, PriceGrabber, and Yahoo Shopping. In addition, the participants’ perceptions of each website’s usefulness, directability/controllability, and their likelihood of future use are measured through their subjective ratings in questionnaires. The results of this research provide insight into how online consumers with different levels of product knowledge experience different types of search tools, with regard to search performance, perceived usefulness and controllability, and website preference.

Online Shopping Search UX

@ Daum (now Kakao), a technology company in Korea | UX Lab

Primary Researcher / Usability Testing + Semi-structured Interview


Examinations of users’ online shopping search behaviors on major Korean web portals (Daum and Naver)

As the primary researcher, I conducted usability testing and semi-structured interviews to understand users’ online shopping search behaviors, contexts, thought processes, and the rationale for their behaviors.

This study identified a range of UX issues and unmet needs regarding users’ shopping search process and provided actionable insights into enhancing the design of Daum’s shopping search (now Kakao “ShoppingHow”) interfaces. For example, these insights include providing more context-specific filtering options to help users more effectively narrow down their product search results:

Daum Place Mobile App Redesign

@ Daum (now Kakao), a technology company in Korea | UX Lab

Primary Researcher / Paper Prototyping + Formative Usability Testing + Semi-structured Interview


Redesigning Location-based Check-in App (Daum Place) and Its Interaction Flow

As the primary researcher on redesigning a location-based check-in app Daum Place, I conducted paper prototyping, formative usability testing, and semi-structured interviews to understand the use contexts and specific needs of users of Daum Place and other check-in apps (e.g., Foursquare, Facebook Check-in).

By triangulating the results from studies of different methods , this project identified the Daum Place redesign prototype’s UX problems and provided actionable insights to update the features, interaction flows, and content of this location-based check-in app.