Editing Emerging Research Directions (section)

===7.5.4 Synchronization and Data Consistency===

'''Data Consistency at the edge'''

Data consistency is an integral component of Persistence at the edge. This subcomponent refers to ensuring that data remains consistent and accurate in a distributed system where data homogeneity remains firm. The challenge of maintain data consistency is prominent because edge devices are not resilient to environmental resource scarcity, which often leads to network issues or hardware failures. Challenges of consistency include: connectivity, latency, and data integrity. A way to solve these issues are consistency protocols. [3]

'''CRDT (Conflict-Free Replicated Data Types'''

CRDTs are data structures implemented in distributed systems that allow modification independently at multiple locations, while also ensuring changes are merged without any conflicts. CRDTs are useful in edge environements where multiple replicase of data may exist and must be synchronized in local caches, or CDNs. CRDTs follow three main components: 

# Conflict Free
#Replication
#Consistency

[[File:Crdt.png|600px|thumb|center| Representation of CRDT operations]]