This paper presents the experiences and interim results from
the ongoing iterative development and testing of four distinctive search
portals on birds. The search portals are developed within the EU STERNA
project and address different target user groups. Based upon specific use
case scenarios the search portals are tested and validated in four specific
phases, applying three different testing methods: WAMMI online evaluation,
focus group evaluation and task-based usability tests. The paper introduces
the four search portals, depicts the testing methodology and presents the first
results from the ongoing user validation process.
