Rerunning

Rerunning refers to performing a process again after its initial execution or airing. The term is used in broadcasting, computing, and scientific research, with domain-specific implications.

In broadcasting and media, a rerun is a program that is aired again after its original transmission. Reruns extend the life of content, support scheduling flexibility, and can monetize older programs through syndication and streaming catalogs. Rights, audience demand, and platform economics influence how often and where reruns appear. Digital services also enable automatic catalog recommendations and binge viewing of archived material.

In computing and software development, to rerun means executing a program, script, test, or pipeline again. Reruns are common in continuous integration and automated testing when a failure appears transient, or when verifying a bug fix. They are also used to test nondeterministic behavior and to validate results under controlled conditions. Best practices emphasize deterministic environments, reproducible builds, and thorough logging to interpret repeated runs.

In research and data analysis, researchers may rerun experiments or analyses to reproduce results, examine variability, or validate conclusions. Controlling random seeds, documenting software and data versions, and using reproducible workflows aid credibility. While reruns support robustness, they must be planned and reported transparently to avoid selectively emphasizing favorable outcomes.

In events and competitions, a rerun can refer to a rematch or a renewed attempt after an interruption or rule issue. Procedures and governance define when a rerun is appropriate and how results are compared with the original run.