US Patent 12008006 Assessments based on data that changes retroactively

A system enables analysis of retroactively changing datasets and/or of various versions of logics. In an example, the system determines a first version of data and/or a first version of a logic and a second version of the data and/or a second version of the logic, wherein at least some of the second version of the data was retroactively added. The system determines two outputs each derived from one of a) applying the first version of the logic to the first version of the data, b) applying the second version of the logic to the first version of the data, c) applying the first version of the logic to the second version of the data, or d) applying the second version of the logic to the second version of the data. The system compares the outputs and determines one or more differences between the outputs.