Assessing the Business Value of Electronic Banking Delivery Channels by Means of a Multi-Perspective Evaluation Model

The IS/IT evaluation research has been re-oriented towards the total value of ownership instead of being stuck to the traditional cost /benefit analysis that often led to the shortsighted total cost of ownership approach. However, not only the previous IS/IT evaluation paradigm but mainly the new one suffer form “a lack of postimplementation measurement of benefits and confusion regarding success criteria”. This paper proposes a postimplementation contingency model consisting of five perspectives that evaluate the business value of electronic banking delivery channels. For each of these perspectives, specific measurements and criteria for success that pertain to e-banking channels are proposed. The model can be generalized to cover the post-implementation evaluation of any IS/IT investment

Management Challenges in Bimodal IT Organizations

Most information technology (IT) organizations are experimenting on adoption of the dual mode of operation, involving traditional and agile methods of work. These two incompatible development worlds need to be in sync for IT to operate effectively. However, both types of operation map onto generic project management principles allowing the manageability of IT projects. Management issues and challenges are presented as points for paying particular attention when managing bimodal (both waterfall and agile practices) IT organizations in two stages: the transition from the traditional to the bimodal and after the adoption of bimodal. These issues and challenges belong to the management and organizational, people, process and technology categories. The management challenges presented in this study are important for the decisions to be made regarding the management and governance of projects into bimodal IT organizations.info:eu-repo/semantics/publishedVersio

A Flexible Membership/Subscription Handling System in an e-commerce Environment

This paper addresses the authorization nature of a membership handling system over the Internet and an abstract architecture is presented, overcoming the drawbacks of mechanisms and techniques proposed and used so far. The system is based on Public Key Infrastructure utilizing attribute certificates

Minor-Obstructions for Apex-Pseudoforests

A graph is called a pseudoforest if none of its connected components contains more than one cycle. A graph is an apex-pseudoforest if it can become a pseudoforest by removing one of its vertices. We identify 33 graphs that form the minor-obstruction set of the class of apex-pseudoforests, i.e., the set of all minor-minimal graphs that are not apex-pseudoforests