Caseiro, PalmiraSantos, Jorge M. A.Cavique, LuísMendes, Armando B.2014-05-302014-05-302013Caseiro, Palmira; Santos, Jorge; Cavique, Luís; Mendes, Armando (2013). "Open-source software in operations research in engineering teaching", in ENEGI 2013: Atas do 2º Encontro Nacional de Engenharia e Gestão Industrial, Universidade de Aveiro, ISBN 978-972-789-379-9: 101-102.978-972-789-379-9http://hdl.handle.net/10400.3/3053ENEGI 2013: Atas do 2º Encontro Nacional de Engenharia e Gestão Industrial, Universidade de Aveiro, 17 e 18 de maio de 2013, Aveiro, Portugal.This contribution will focus on Computational Tools of Open-Source Software that are rather interesting in teaching Operations Research applied to engineering sciences, (Tavares et al 1996) specifically some educational experiences in the area of Forecasting; Simulation; Graphs and Networks; Decision Theory and Linear Programming. We introduce some examples with RStudio v0.97 (Verzani, 2008) especially in the forecasting area and with Scilab 5.4.1 (Barreto, 2011) for Graphs and Networks (Shortest Path and maximum Flow) and the remaining topics (Taha, 2007) with an Open Source Spreadsheet: Gnumeric 1.12.0.engGraphs and NetworksForecastingDecision TheoryLinear ProgrammingSimulationconference object