Event-driven integration

One of the many cloud qualities you are after when transitioning to the cloud is scalability. This is true for SaaS vendors since they need to scale significantly to serve numerous customers. Similarly, it is valid for end-user companies, especially when creating extensions while keeping the core clean. This is the ethos of the cloud, explicitly considering whether the future will be more geared towards SaaS and PaaS models.

Let’s be a bit pedantic this time and define an event first. According to Cambridge Dictionary, an event is anything that happens, especially something important or unusual. This definition pretty much works when you apply it to the event concept in IT. For example, in business object-orientated models, the occurrence can be linked to a change in the state of an object, for example, a lifecycle status such as BusinessPartner.changed. This makes events more than mere messages, as they convey state-change information. This contrasts...