Is BPM Dead, Long Live Microservices? By Luis Weir

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With the massive uptake of Microservices Architecture -industry wide- and with it, the adoption of patterns such as Event Sourcing, CQRS and Saga as the means for Microservices to asynchronously communicate with each and effectively "choreograph" business processes, it might seem as if the days of process orchestration using BPM engines (e.g. Oracle Process Cloud now also part of Oracle Integration Cloud, Pega, Appian, etc) or BPEL (or BPEL-like) engines are over.

Although the use of choreography and associated patterns (such as the aforementioned) makes tons of sense in many use cases, I’ve come across a number of them where choreography can be impractical.

Some examples:

  • Data needs to be collected and aggregated from multiple services -e.g. check the Microservice.io Composition pattern. Note that this pattern doesn’t necessarily implies that an orchestration is required. Could be that data is collected and aggregated (not transformed) into a single response. But if data collected from multiple sources needs to also be transformed into a common response payload, then it feels pretty close to one of the typical use cases for orchestration.
  • The process is human-centric and can’t be fully automated. Basically at some point a human has to take an action in other for the process to complete (e.g. approval of a credit card application, or a credit check) -BPM/Orchestration tools tend to be quite good at this.
  • There is a need to have very clear visibility of the end to end business processes. In traditional BPM tools, this is fairly straight forward, with Choreography / Events, although possible to monitor individual events, a form of correlation would be required to build an end to end view on the status of a business process. Read the complete article here.

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Technorati Tags: SOA Community,Oracle SOA,Oracle BPM,OPN,Jürgen Kress

About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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