This paper discusses the development and implementation of a technology-supportedstudent teacher performance assessment that supports integration with a larger electronic assessment system. Of the 20 supervisors who were invited to the field test, 18 completed the survey and 8 participated in the focus group. Supervisors were overwhelmingly positive about the experience, the value of the updated assessments, and the ongoing plans to support field observations with mobile technologies. However, issues related to training, support, and trust loom largely for successful adoption, diffusion, and successful use of technology-supported assessments.