School information systems (SIS) have the potential to cause a change in a school's technical, structural, psycho-social, and managerial systems. Implementation of a technological innovation such as an SIS is not a one-step occurrence; it is a process that occurs over time. Implementing any technological innovation involves active learning regarding the innovation, incorporation of it on a regular basis, and proliferation of the innovation over time. Implementation culminates with the continued use of the innovation until it is recognized as being beneficial and becomes a routine feature of the organization. Based on a diffusion of innovation framework, this action research study analyzes the first six months of the implementation stage of an SIS at a rural public high school. Teachers' (n = 22) stages of concern after a semester of using the SIS were identified using the Stages of Concern Questionnaire (Hall & Hord, 2011b). Focus groups with teachers, to ascertain perceptions of barriers and enablers to the implementation, were conducted, as were interviews with administrators from other school districts about their implementation experiences with the same SIS. The analysis of the data was used to develop a plan for the continuing implementation of the SIS that included the use of Teacher Coaches and the design of professional development. Recommendations for others implementing an SIS or similar technological innovation are also provided. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]