An API switch-over strategy also needs to be formulated and this will largely depend on the organisation. The best policy would be to gradually migrate APIs to the new platform, targeting logical units of APIs that can be migrated together. This, however, requires a high level of control and communication with API consumers so as not to interfere with business processes. There is always the chance that a consumer forgets to re-point to the new API endpoint and therefore retirement of old APIs is important issue here.
For those organisations looking to reduce license costs, this may not be the approach as they would have to maintain licenses for both the old and new API platforms. The degree of coordination required ...
