Appreciating issues of usefulness and task-technology fit in the Comate case presumes an understanding of the operation of the Business Intelligence function. Any of the textbooks by Kahaner, Pollard, and Prescott & Miller that are mentioned in the references section are a good source for furthering this understanding.
Many authors address issues of ease-of-use or user-friendliness of computer systems and their user interface. As an example that specifically targets ease-of-use related to usability consider the works by Nielsen mentioned in the references section.
For issues of leadership style, you may visit:
Fiedler, F. E. (1967). A theory of leadership effectiveness. New York: McGraw-Hill.
Hersey, P. & Blanchard, K.H. (1977). Management of organizational behavior (3rd ed.) Englewood Cliffs, NJ: Prentice-Hall.
Vroom, V. H. & Jago, A. G. (1988). The new leadership: Managing participation in organizations. Englewood Cliffs, NJ:Prentice-Hall.
An ever-growing stream of studies addresses aspects of knowledge sharing within organizations. Useful examples of studies that address cross-cultural issues in knowledge sharing are:
Davenport, T. H. & Prusak, L. (1998). Working knowledge. How organizations manage what they know. Boston, MA: Harvard Business School Press.
De Long, D. W. & Fahey, L. (2000). Diagnosing cultural barriers to knowledge management. Academy of Management Executive, 14(4), 113–127.
Ford, D. & Chan, Y. (2002). Knowledge sharing in a cross-cultural setting: A case study (02–09). Kingston: Queen's School of Business, Queen's University at Kingston.