Simplify the following text for a Grade 10 native English-speaking person.
Original: In computing , cache coherence ( also cache coherency ) refers to the consistency of data stored in local caches of a shared resource .
Simplified: Cache coherence or Cache coherency refers to a number of ways to make sure all the caches of the resource have the same data , and that the data in the caches makes sense ( called data integrity ) . Cache coherence is a special case of memory coherence .