Denamo Addissie (PHD)Behailu Workneh Tolu2024-03-152024-03-152022-06-01https://etd.aau.edu.et/handle/123456789/2531Material selection is a complex and delicate task determined by the vast number of building material options. Likewise, multiple factors are often considered by the architect or building designer when evaluating the various categories of building materials. As a result, these sets of factors or variables often present tradeoffs that further complicate the decision-making process. To ease the material-selection process, this study examines the relevant factors or variables needed to develop a systematic and efficient material-selection system. Through the analysis of frequency data and results of the study, it has identified the potential factors that will impact designers’ decisions in their choice of wall making alternative building materials, during the design-decision making process. The application of the criteria for the quantitative evaluation and selection of the best alternative building material, using the analytic hierarchy process model, are discussed. The developed decision support system assist designers to assess their consequences in terms of whether or not a material option is likely to be best chosen over the existing conditions. The study also investigates the existing situations in the application of alternative wall making building materials. It assesses the current materials which are being used as a wall making alternative building materials, the extent of usage and barriers to use these materials. Keywords: decision making process; factors or variables; selection criteria; alternative building materials; selection framework; analytical hierarchy process (AHP)enThesis