Abstract: This disclosure is directed to bidirectional replication of data across two or more data centers where each data center has datastores corresponding to other data centers. When new data is written or updated at a particular data center, that new data may be updated on datastores corresponding to that particular data center at the other data centers. A data center system at the particular data center may indicate to other data center systems at the other data centers that data has been updated along with providing an identity of the particular data center. The other data center systems may update the datastores corresponding with the particular data center with the new data. When data is accessed at a data center, a key indicating the data center of origin may be used to determine the datastore from among a plurality of datastores at a data center in which data is stored.

Abstract: An identity based automated form filling method includes maintaining an association of a user, a form, and a plurality of values recorded over time for a plurality of fields of the form. Following a request for the form by the user, the form is caused to be dynamically populated according to the association.