Original sentence: Dr Aahlad's PHD Thesis had theorised a model for active-active replication over a WAN and this was developed during the first four years of WANdisco's existence.The result was DConE, the foundation for all WANdisco products
Edited sentence: Dr Aahlad's PHD Thesis had theorised a model for effective Active replication over a WAN.It was this theory and four years of development work that resulted in DConE, the foundation for all WANdisco products