Sumario:
1- Introducción a las bases de datos distribuidas
2- Replicación
3- Sincronización
4- Manejo de réplicas coordinadas
5- Presentación de un problema real
6- Implementación de una solución
7- Conclusiones

The term Federated Databases refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. At integrating data, several issues must be addressed. Here, we focus on the problem…