This article presents a deterministic model for rough-cut cost estimation in a capacitated madeto-order environment. We assume that a firm can execute each job either at its own shop or by outsourcing it. The model calculates the unit cost of each product while taking into account the shop floor rough-cut capacity planning, and by determining what to produce in the firm’s shop and what to outso...

This study presents a new decision making method for scheduling paper mill processes, especially for the paper converting process. The optimal scheduling is analyzed with the multiobjective optimization programming (MOOP) using the summation of weighed objective functions (SWOF) [Ko and Moon, 2002]. In the production planning for the paper converting mill, making the strategy for the cutting pa...

Marketing costs have been rising rapidly while both manufacturing and general management costs have been declining. As a result, those concerned with realigning corporate assets to maximize shareholder returns are requiring that marketers start proving their worth or be gradually starved of resources. Reflecting such pressures, marketing managers are being asked to provide more convincing evide...

This paper describes a system to generate 3D model from image sequence taken in complex environment including variable ground surface, buildings and trajectory loops. Here we use a $1000 catadioptric camera and an approximate knowledge of its calibration. This contrasts to current systems which rely on more costly hardware such as the (calibrated) spherical vision camera Ladybug. All steps of t...

In this paper, we propose a probabilistic approach to the problem of global path planning with uncertainty for mobile robots in a dynamic manufacturing environment. To model the changing environment, we use a topological graph weighted by scalar cost functions. The cost functions consist of two elements: a deterministic cost for the known part of the robot’s environment, and an uncertainty cost...

Software testing is indispensable in ensuring software quality. Traditionally, testing has been viewed as a separate and distinct stage at the end of the software development process. However, testing activities have evolved from the “code and fix” process of executing a piece of software in an attempt to find coding errors, to a collaborative coordinated effort with testing activities embedded...

Emergency departments (ED) in hospitals are experiencing severe crowding and prolonged patient waiting times. A significant contributing factor is boarding delays where admitted patients are held in ED (occupying critical resources) until an inpatient bed is identified and readied in the admit wards. Recent research has suggested that if the hospital admissions of ED patients can be predicted d...

The paper aims to present a cost evaluation for multi-project environment, taking into account imprecision in activity duration and cost. Data specification in the form of discrete α-cuts enables the connection of distinct and imprecise data, and the implementation of a constraints satisfaction problem with the use of constraint programming. Moreover, using α-cuts, optimistic, pessimistic, and ...

In real projects, the trade-off between the project cost and the project completion time, and the environmental uncertainty are aspects of considerable importance for managers. For complex environment with more than one type of uncertainty, this paper presents three types of time–cost trade-off models, in which the project environment is described via introducing the fuzzy random theory. The ex...