For an organization performing its business in todayâ€™s competitive business environmentrninformation technology/information system is already considered as a critical factor. And, givenrnthe fact that IT system projects are one of the most costly investment decisions and one of a veryrnfew major strategic dimensions to giant service providers (including Commercial Bank ofrnEthiopia (CBE)) and similarly getting them implemented is majorly a challenging task by itself.rnThe overall purpose of this project work is to discover the CSFs to IS/IT system projectsrnimplementation process in terms of their empirical importance in the case of Commercial Bank ofrnEthiopia (CBE). Regards to the methodology employed for this project work, a quantitative datarncollected from previous implementers of IS/IT system project(s) used, whereas PrincipalrnComponent Analysis (PCA) statistical estimation technique was used together with its related datarntesting tools. Whereas, the analysis part consists of ranking CSFs through descriptive statistics,rncomputing commonalities, unrotated and rotated component matrix, total variance calculation,rnPearson correlation technique, and covariance etc. to materialize the above analysis, a statisticalrnsoftware package for social science (SPSS) was used. Using the above methods of analysis, ToprnManagement Support, Team Work, Composition, and Capability, Project Leadership, Proper andrnAdequate Training, Project Management, Technological Infrastructure, Business ProcessrnAdjustment, Information Systems Adjustment, Processes and Sub-processes (Stakeholders)rnParticipation, and Business Process Fit: Data Fit were found as an individual key success factors.rnWhereas, Five major principal components (dimensions) of CSFs were extracted for thisrnparticular project work, these are already labeled as Process related CSFs, Quality related CSFsrnEnterprise related CSFs Project related CSFs, Business and IT System Alignment related CSFs.rnEach of these dimensions contained from seven to two high loadings (variables or CSFs). All inrnall, organization looking for adopting various state-of-the art IS/IT system technologies in general,rnand commercial banks in particular to be efficient and effective they have to focus on the areasrnorganizational and related business readiness issues, such as in terms improving technologicalrninfrastructure, business processes and information systems adjustments, processes and subprocessesrnparticipation and/or stakeholders and more importantly higher and proper support ofrntop managements. To this end, providing a better attention to those CSFs explored as key onernbeyond all other critical factors are suggested to be a proper move toward s achieving majorrnobjectives of successful implementation of IS/IT project implementation.