Search and navigation as retrieval strategies in large photo collections

In this exploratory study we investigated the use of search and navigation as strategies for retrieval in large collections of digital photos. The main goal of the research was to test out models and methods that can describe retrieval behaviour and preferences. A focus group interview was conducted and demonstrated the need for taking various types of factors and measurements into account. We examined relationships between independent variables (happiness levels, satisfaction with and confidence in the search results, feeling lost during search,), and perceived satisfaction as dependent variable. The analysis showed statistical significant relationships for some important factors, but also indicated limitations in the applied theoretical framework, in particular related to use of emotions as independent variables. The study also showed that users’ own perception of which retrieval strategy was the fastest differed from the actual time they used on search and navigation tasks. This confirms the need for analytical models that integrates subjective preferences/perceptions and measurement of objective factors.