Software development has always been characterized by some metrics. One of the greatest challenges for software developers lies in predicting the development effort for a software system which is based on developer abilities, size, complexity and other metrics. Several algorithmic cost estimation models such as Boehm’s COCOMO, Albrecht's' Function Point Analysis, Putnam’s SLIM, ESTIMACS etc. ar...

At the moment the huge majority of the structural parts is based on pre-preg designs and standard prepreg manufacturing technology. They are processed conventionally out of Hand Lay-up and cured in autoclaves. The cost drivers are the hand-work, the use of autoclave and the quality control. The future success of new helicopter programs is strongly dependant on the development of cost efficient ...

This chapter is an effort towards illustrating the use of expert panels (EP) as a means of eliciting knowledge from a group of enterprise resource planning (ERP) experts in an exploratory research. The development of a cost estimation model for ERP adoptions is very crucial for research and practice, and that was the main reason behind the willingness of experts to participate in this research....

This paper is concerned with a conservation law model of traffic flow on a network of roads, where each driver chooses his own departure time in order to minimize the sum of a departure cost and an arrival cost. The model includes various groups of drivers, with different origins and destinations and having different cost functions. Under a natural set of assumptions, two main results are prove...

Product quality, development productivity, and staffing needs are main cost drivers in software development. In particular the tension between productivity and quality makes it difficult to gauge the relative cost-effectiveness of a software development using separate quality and productivity measures. The paper proposes a one-stop cost-effectiveness indicator that resolves the tension between ...

of the 5,655 accidents with casualty that had occurred during 1973 in teheran, 4,936 or 87. 3% were caused by the negligence on the part of the drivers. the most accident producing driving middle-aged men of 30- 39 years, who had recently acquired driving permit and were wage earners as drivers in the city of tehran. alcohol intoxication as the cause of the accident had been recorded in only o....

Commodity virtual machine monitors forbid direct access to I/O devices by untrusted guest operating systems in order to provide protection and sharing. However, both I/O memory management units (IOMMUs) and recently proposed software-based methods can be used to reduce the overhead of I/O virtualization by providing untrusted guest operating systems with safe, direct access to I/O devices. This...