Many organizations find that they can't avoid choosing several tools to satisfy their wide range of enterprise architecture (EA) stakeholders. These enterprises can only maintain a single version of the truth for EA by consolidating and exchanging data and metadata between the different tools they've chosen. The major EA tools have their own ETL-like tool to develop the interfaces and allow model transformation, but a small set of vendors also provide independent EA exchange tools. The existing tools provide tactical value — at a low cost — but they will never represent the strategic metadata exchange infrastructure that the enterprises truly need.