Editing Cross-cutting concern (section)

{{Short description|Concept in aspect-oriented software development}}
In [[aspect-oriented software development]], '''cross-cutting concerns''' are [[Aspect (computer programming)|aspects]] of a [[computer program|program]] that affect several [[Modular programming|modules]], without the possibility of being [[Encapsulation (computer programming)|encapsulated]] in any of them.
These [[Concern (computer science)|concerns]] often cannot be cleanly [[Modularity (programming)|decomposed]] from the rest of the system in both the design and implementation, and can result in either ''scattering'' ([[code duplication]]), ''tangling'' (significant dependencies between systems), or both.

For instance, if writing an [[application software|application]] for handling [[Electronic health record|medical records]], the indexing of such records is a [[core concern]], while [[Data logging|logging]] a history of changes to the record database or user database, or an authentication system, would be cross-cutting concerns since they interact with more parts of the program.