[cridal]

Nice solution to a nagging problem. Has a lot of potential for building data transformations for reporting type applications. And it does make sense as a web app if it leads towards the path of "hosted data warehousing" or "data warehousing as a service", where a client deliberately makes a decision and is comfortable with entrusting their data to a third party in exchange for easier path toward some type of reporting/analytical capability. As a matter of fact, I would think about using/licensing it for a system I'm working on...

However, for those advanced use cases (when it's not a one-off), there is a need for saving/editing/copying/versioning of transformations. Are you guys thinking about providing such capabilities?