Abstract: In one example, a device to calculate a relative set of weighted indices for a set of objectives includes an input device that receives a prioritized list of the set of objectives. A user interface module creates a square matrix of the set of objectives and their subjective relative intensity of importance includes a module to query for subjective intensity of importance between respective objectives in the prioritized list of objectives. The user interface module only presents as options select subjective intensity of importance which preserve a transitivity property of the prioritized list of objectives. A compute module calculates a principle eigenvector of the square matrix to thereby create the relative set of weighted indices.

Abstract: Examples relate to optimizing a portfolio of projects. The examples disclosed herein enable triggering a display of a first graphical representation that may illustrate costs for executing a first portfolio of projects over a time period. The first portfolio may include a set of projects that is selected and scheduled based on a mathematical optimization model. The examples further enable triggering a display of a second graphical representation that may illustrate how the set of projects is scheduled over the time period. The first graphical representation and the second graphical representation may be aligned to a common timeline.