Institute for Information and Communications Technology Promotion

ABSTRACT This study aims to analyze how the quality of leadership and teamwork influences project success in information systems development (ISD). The proposed research model endeavors to substantiate the heterogeneity of project success in the public and private sectors to assist project managers. We surveyed experienced Korean project managers in both the public and private sectors and applied a partial least squares method to the data to empirically prove our hypotheses. According to the results, the network governance, entrepreneur, and transactional leadership styles have a significant and positive influence on teamwork quality, while teamwork is a mediator that determines an ISD project’s success. The comparative analysis of the public and private sectors showed that transactional and entrepreneurial leadership styles are efficient in ISD projects in the public sector, while transformational and network governance leadership styles are more appropriate in the private sector.

Even though several RSVP extensions have been proposed to support QoS guarantee in mobile Internet, they still suffer from issues such as excessive advanced reservations or a nonoptimal path generated by Mobile IP. We propose an algorithm called “Link Layer Assisted Multicast based Mobile RSVP (LM-MRSVP)” to resolve the issues. Our implementation shows practicability of our proposal and the simulation study confirms our claims.