RigorCons timing constraint management software is an automation tool used to constrain and manage SDC throughout multiple steps of digital chip design. The tool can automatically check and verify multiple SDCs in parallel by using the constraints of years of practical experience. Identify gaps and errors in each SDC as early as possible, significantly reduce the time for manual review of the SDC, and shorten the iteration cycle. Avoid the huge losses caused by tape-out, so that designers have more energy to solve more difficult problems. The tool consists of five core engines: Rule-based engine, Formal-based engine, Equivalence engine, Hierarchical engine, Timing Budgeting engine. The tool has worked with SDC files larger than 4GB and has been validated with large customers.