There are many methods of multicriteria decision analysis (MCDA), each one with properties and benefits.In the Architecture, Engineering, and Construction (AEC) sector most of the time, the decision-making involve different interest of the stakeholders of the projects, must of the times applying methods with the focus on the result.This paper presents a case study of a new University's facility construction that compares the traditional decision-making approach used in the design-bid-build procurement method of AEC industry in Colombia with an MCDA approach.Choosing By Advantages (CBA) has been used to analyse the reasons that could help explain why the subcontractor of a project construction was not meeting the client's expectations during project execution.Results include a discussion of main differences between these decision methods, the main difference is that in traditional decision-making approach the main criterion was cost while in the CBA was value.Consequently, the method's results were different for the alternatives.