1. A computing system, comprising: an object repository to maintain a set of objects; a project stage module to maintain an object in each of a set of project stages; an origin matrix builder module to build an origin matrix for the object when the object transitions from a source object in a first project stage to a target object in a second project stage, wherein the origin matrix includes: a first column to represent the first project stage; a second column to represent the second project stage; and a row to represent an origin identifier for the source object in one or more of the first column and the second column; and a memory to store the origin matrix of the object.