in the early stages of a construction project, the reliability and accuracy of conceptual cost estimates are major concerns for clients and cost engineers. previous studies applied scoring methods and established common rules or mathematical methods to assess the quality of cost estimates. however, those approaches have some limitations in adapting to real-world projects or require understandin...

A cornerstone of software project management is effort estimation, the process by which effort is forecasted and used as basis to predict costs and allocate resources effectively, so enabling projects to be delivered on time and within budget. Effort estimation is a very complex domain where the relationship between factors is non-deterministic and has an inherently uncertain nature, and where ...

This thesis is concerned with issues relating to the management of information security in organisations, motivated by the need for cost-efficient information security. It is based on the assumption that: in order to achieve cost-efficient information security, the point of departure must be knowledge about the empirical reality in which the management of information security takes place. The d...

Virtual prototyping has emerged as a significant enabler for cost effective management of complex products over their lifecycle. The virtual prototypes play an important role through all life-cycle phases of products. Due to the breadth of impact, significant challenges arise in developing virtual prototypes. This paper describes the issues and tradeoffs that are important for implementing virt...

From a customer perspective, three main dimensions are relevant when evaluating and procuring database systems: functionality, performance, and total cost of ownership. Traditionally, database research has focused a lot on performance improvements of database systems, but less on new functionality and reducing the total cost of ownership. In this paper, we give our perspective on these three di...