The IEEE International Conference on Commerce and Enterprise Computing (CEC) is the premier forum for researchers and practitioners to present and discuss the most recent innovations, trends, results, experiences and concerns in selected areas at the realm of the convergence between Business and Informatics. This convergence includes work in E-Commerce, Enterprise Computing, Technology-enabled Business Models and Transformation as well as specific Information Systems in Industries. The program of CEC 2012 will consist of invited talks, technical paper presentations, tutorials, industry sessions, workshops, and panel discussions representing both foundational contributions and applied research.