AN OBJECT-ORIENTED MODEL OF THEPORTFOLIO SELECTION PROBLEM

摘要

Most decisions must consider multiple, generally conflicting, decision objectives. And many decisions requirernnot a single solution alternative, but a set or portfolio of alternatives. A business will generally produce arnportfolio of products. Government will raise revenue through a portfolio of taxes. A prospective college studentrnis wise to apply to a mix of schools, including some with high likelihood of acceptance. A project team leaderrnneeds to select several team members, creating a balance of skills and taking into account the synergy of thernteam. While the single solution alternative decision problem has been widely studied and many solutionrnapproaches and decision support systems have been developed, the portfolio problem has been largelyrnneglected. Specific problem environments have been discussed using heuristic, ad hoc methods, but no generalrnmethodology has been developed. This research attempts to develop a comprehensive model of the portfoliornproblem using an object oriented approach. The object-oriented approach will allow future research to focusrnon and further develop individual pieces of the model, without loss of overview and integration.