Plot which system is the master for each data entity so integration architects know where to read and where to write.
Phase C, Information Systems ArchitectureDerived from TOGAF
Master data authority: one system of record per entity
Master data entities run down the side and the five systems that hold them run across the top. Each cell marks the system as Master, Replica or read-only Consumer, so exactly one system owns each entity.
The rule the matrix enforces is one Master per row: two systems both marked M is a conflict to resolve, not a fact to record. Replicas and Consumers may be many, but only the Master may change the data.
Click a cell to cycle master, replica, consumer. Up to eight entities and six systems; names of 22 and 16 characters fit the matrix.
