A key attribute of competitive tendering for the periodic selection of operators of subsidised public transport services is to secure the provision of specified services at efficient cost levels. This has proved particularly effective where services were previously provided by an inefficient monopoly operator. The arguments for the adoption of competitive tendering in preference to negotiation ...

The European public transport scene was revolutionised by the British deregulation of 1986 but the more cautious bus reform by route tendering introduced in London in 1984 appeared to be a more convincing example for many countries. Copenhagen, e.g., introduced a similar regime and route-by-route competitive tendering has now become the norm in almost the whole of both Denmark and Sweden and ca...

We present a method for tendering and contracting a project consisting of multiple interdependent tasks, that will ensure that the parties are interested in the behavior that is optimal for the whole system. Still the method enables the participants to change the conditions of their contracts during the process. We also show how can this be applied when only partial information is available abo...

To conduct business on the Internet, many problems should be solved. Examples of these problems are: security, authentication, heterogeneity, interoperability, and ontology problems. The diicult problem here is how to combine disparate information sources to integrate them in an open environment like Internet. Many approaches were invented to solve this problem. We discuss the problem in the do...

In this paper we analyse virtual consortia in the construction sector. Focusing on the bidding/tendering process, we review the existing information systems over the Internet that support this process. Our results show that although there are a substantial number of systems that support searching for calls for tenders, few of them provide support for other vital items of the bidding/tendering p...

The construction and infrastructure sector is associated with complex projects with high risk exposure. The project related risks compel companies to a structured risk management process to enable successful projects. The project complexity generates a high amount of information which creates a demand for computer based tools. However, there is currently a lack of adequate risk management suppo...

A major step is required to integrate critical legal requirements into e-tendering system design. The current systems using ad-hoc security mechanisms do not meet the legal requirements for forming a complex electronic contract. This paper analyses the etendering process and its legal obligations. The mapping of these obligations to security policies has identified a set of essential security s...