How OpenLegacy Differs from MuleSoft in Integrating to Legacy Systems.
Why Legacy Integrations are Different From Cloud integrations
Cloud systems expose APIs as part of their architectural design. In contrast, legacy systems only expose transactions. Transactions are designed to achieve a specific task, not expose a set of assets directly, which makes them tough to use directly as RESTful APIs. To build truly RESTful APIs that fulfill a business case, you need to combine transactions. The combination is best done by development teams with experience handling REST APIs.