Just based on recent experience, I am going to put this out there – AWS Step Functions are great for technical state machines which move from one-activity to another but not really designed for stateful process orchestration and definitely not for implementing SAGA Serverless Step Functions from AWS or BPMN Engines? When building microservices, the…More
Category Archives: BPMN
Microservices for orchestration: How to apply the stateful process adapter pattern
What are stateful microservices? Microservices holding state while performing some longer-than-normal execution time type tasks. They have the following characteristics They have an API to start a new instance and an API to read the current state of a given instance They orchestrate a bunch of actions that may be part of a single end-to-end…More
Complex Form Evaluation with Drools
Introduction Complex business rules are best implemented using a ‘Rules Engine’. Drools is an open source Business Rules Management Product. See here In this blog we will cover a few basics of using the Drools rule engine, specifically using a Domain Specific Language (DSL) which is a language that is more user focused. The…More
Camunda BPM – Manual Retry
The Camunda BPM is a lightweight, opensource BPM platform (See here: https://camunda.com/bpm/features). The “Cockpit” application within Camunda is the admin dashboard where deployed processes can viewed at a glance and details of running processes are displayed by the process instance ids. Clicking on a process instance id reveals runtime details while the process is running – process variables,…More
