What is the appropriate term for the lag between writing and reading updated data in Azure?

In the context of Azure and data consistency models, the term that best describes the lag between writing and reading updated data is Bounded Staleness. This consistency model allows for read operations to reflect updates after a certain delay, which is predetermined and bounded. This means users can specify how stale the data can be when read following a write operation, providing a balance between consistency and performance.

This model allows for scenarios where slight delays in data visibility are acceptable while still maintaining some assurance that the data will eventually be consistent. It's often used in distributed databases to improve performance and availability since it can help minimize the overhead associated with enforcing stronger consistency guarantees.

The other options reflect different consistency models. Eventual Consistency ensures that all updates will eventually propagate through the system but does not guarantee when that will happen. Strong Consistency requires that any read operation reflects the most recent write, thus eliminating that lag altogether. Data Integrity refers to the accuracy and consistency of data but does not describe the timing of updates in relation to reads.