Client wanted to develop decision matrix app in web version with firebase to share matrix with users and edit in realtime . A decision matrix is a list of values in rows and columns that allows an analyst to systematically identify, analyze, and rate the performance of relationships between sets of values and information. Elements of a decision matrix show decisions based on certain decision criteria. The matrix is useful for looking at large masses of decision factors and assessing each factor’s relative significance. Decision matrix is used to describe a multi-criteria decision analysis (MCDA) problem.