We study the impact of synchronous and asynchronous monitoring instrumentation on runtime overheads in the context of a runtime verification framework for actor-based systems. We show that, in such a context, asynchronous monitoring incurs substantially lower overhead costs. We also show how, for certain properties that require synchronous monitoring, a hybrid approach can be used that ensures ...

Activity-based costing (ABC) tries to allocate overhead costs to cost objects more accurately than traditional cost systems. However, since ABC proportionalizes overhead costs it is a heuristic. The paper uses simulations and mixedinteger programming to analyze the extent of the sub-optimality incurred by ABC-heuristics. While previous research has focused on ABC systems with a simple set of co...

Estimating of the overhead costs of building construction projects is an important task in the management of these projects. The quality of construction management depends heavily on their accurate cost estimation. Construction costs prediction is a very difficult and sophisticated task especially when using manual calculation methods. This paper uses Artificial Neural Network (ANN) approach to...

Decisions concerning product differentiation lie at the interface of marketing and operations management. This paper addresses the influence of consumer preferences and operations costs on the optimal number and price of variants of a differentiated product. We represent consumer preferences with the logit model and market segments with a Bayesian model. We also break operations costs into over...

OBJECTIVE The cost burden (called full cost) of providing health services at a referral, a district and a mission hospital in Ghana were determined. METHODS Standard cost-finding and cost analysis tools recommended by World Health Organization are used to analyse 2002 and 2003 hospital data. Full cost centre costs were computed by taking into account cash and non-cash expenses and allocating ...