Using a multicriteria interactive approach in scheduling non-critical activities
Journal Title: Operations Research and Decisions - Year 2018, Vol 28, Issue 1
Abstract
A typical project consists of many activities. Logical dependencies cause some of them to be critical and some non-critical. While critical activities have a strict start time, in some projects the problem of selecting the start time of a non-critical activity may arise. Usually, it is possible to use the “as soon as possible” or “as late as possible” rules. Sometimes, however, the result of such a decision depends on external factors, e.g., an exchange rate. In this paper, we consider the multi-criteria problem of determining the start time of a non-critical activity. We assume that the earliest start and the latest start times of the activity have been identified using the critical path method, but the project manager is free to select the time when the activity will actually be started. This decision, however, cannot be changed later, as it is associated with the allocation of key resources. The criteria that are usually considered in such a situation are cost and risk. We assume that the cost depends on an exchange rate. We also consider the risks of project delay and a decrease in quality. This paper formulates the selection of the start time for a non-critical activity as a discrete dynamic multicriteria problem. We solve it using an interactive procedure based on the analysis of trade-offs
Authors and Affiliations
Maciej NOWAK, Krzysztof TARGIEL
Keywords
Related Articles
- EP ID EP452273
- DOI 10.5277/ord180103
- Views 46
- Downloads 0
The impact of weights on the quality of agricultural producers' multicriteria decision models
Decisions regarding agricultural production involve multiple goals. A multicriteria approach al-lows decision makers to consider more aspects of the decision scenario, although it also leads to other problems, such as di...
Optimal ordering quantities for substitutable items under joint replenishment with cost of substitution
An inventory system of two mutually substitutable items has been studied where an item is out of stock, demand for it is met by the other item and any part of demand not met due to unavailability of the other item is los...
Location factors for budget, medium standard and luxury hotels based on the example of hotels operating in Poland
The aim of this article is to indicate the most important factors determining the location of newly built hotels in Poland in 2000–2009, belonging to different groups in the hotel categorization system. We use a two-stag...
An approximation algorithm for multi-unit auctions: numerical and subject experiments
In multi-unit auctions for a single item, the Vickrey–Clarke–Groves mechanism (VCG) attains allocative efficiency but suffers from its computational complexity. Takahashi and Shigeno thus proposed a greedy based approxim...
Determination of the optimal exchange rate via control of the domestic interest rate in Nigeria
An economic scenario has been considered where the government seeks to achieve a favourable balance-of-payments over a fixed planning horizon through exchange rate policy and control of the domestic interest rate. The dy...