Many attempts at implementing Healthcare Information Technology (HIT) have failed. Studies have pointed to the importance of commitment from all levels during implementation as well as organizational commitment as being central to achieving the desired IT benefits. A case study analysis of two public Portuguese hospitals is undertaken, focusing on stakeholder commitment to the IS/IT implementation. An understanding is sought of the commitment, perceptions, assumptions and knowledge that health professionals hold regarding IT adoption. A qualitative and interpretative approach is used employing semi-structured interviews and document analysis. Technological Frames of Reference (TFR) and The Three Component Model of Organizational Commitment provided a theoretical grounding for analyzing the data collected. Three TFR relevant to the development of commitment and benefit achievement were identified: Control, Liability and Protection.