BPMN2 and jBPM5

BPMN2 and jBPM5 Kris Verlaenen jBPM5 Lead

Overview
Rules and Processes
jBPM5
Guvnor
Flexible and adaptive processes

What is a business process?
State
Sequence
Long-lived
Persistence
Generic
More stable
A business process is a process that describes the order in which a series of steps need to be executed, using a flow chart.

Combining processes and rules
Integration
From loose coupling (decision services)
To advanced integration (process rules)
Unification
Rules and processes are different types of business knowledge assets
Tooling (IDE, repository, management)

RuleFlow

RuleFlow : describing the order in which rule groups should be evaluated
Process Rules : Evaluate constraints
RuleSet : Evaluating a set of rules in your process (= local decision service)
Assignment rules
Describing exceptional situations using rules
Modularizing concerns using rules
Using rules to dynamically alter the behavior of the process
Rules and Process Integration

Model Deploy Execute Monitor Analyze Life Cycle Mining Analysis Optimization Simulation Testing Design Monitoring Reporting Execution Integration Deployment Management Audit Human Interaction Collaboration

Vision jBPM as the process engine in a knowledge-oriented platform for developers and business users

Key Characteristics of jBPM5
Open-source business process management project offering:
generic process engine supporting native BPMN 2.0 execution
targeting developers and business users
collaboration, management and monitoring using web-based consoles
powerful rules and event integration

From Workflow to BPM
Core engine is a workflow engine in pure Java
state transitions
lightweight
embeddable
generic, extensible
Core Engine

Core Engine Knowledge Base Stateful Knowledge Session Process Definition Process Instance

BPMN 2.0 Example < definitions ... > < process id="com.sample.bpmn.hello" name="Hello World" > < startEvent id="_1" name="StartProcess" /> < sequenceFlow sourceRef="_1" targetRef="_2" /> < scriptTask id="_2" name="Hello" > < script >System.out.println("Hello World");</ script > </ scriptTask > < sequenceFlow sourceRef="_2" targetRef="_3" /> < endEvent id="_3" name="EndProcess" /> </ process > </ definitions > < definitions ... > < process id="com.sample.bpmn.hello" name="Hello World" > < startEvent id="_1" name="StartProcess" /> < sequenceFlow sourceRef="_1" targetRef="_2" /> < scriptTask id="_2" name="Hello" > < script >System.out.println("Hello World");</ script > </ scriptTask > < sequenceFlow sourceRef="_2" targetRef="_3" /> < endEvent id="_3" name="EndProcess" /> </ process > </ definitions >

Java Interface ProcessRuntime interface
startProcess(processId)
startProcess(processId, parameters)
signalEvent(type, event)
signalEvent(type, event, instanceId)
abortProcessInstance(instanceId)
getProcessInstance(instanceId)
…

Java Example // (1) Create knowledge base and add process definition KnowledgeBuilder kbuilder = ... kbuilder.add( ..., "sample.bpmn", ResourceType.BPMN2); KnowledgeBase kbase = kbuilder.newKnowledgeBase(); // (2) Create new stateful knowledge session StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); // (3) Start a new process instance ksession.startProcess(“com.sample.bpmn.hello”);

Domain-specific Services
Extend palette with domain-specific, declarative service nodes
define input / output parameters
runtime binding

Guvnor
Guvnor as knowledge repository
BPMN2 processes
Task and process forms
Model
Web-based process editor (Oryx)
Build, deploy, test, manage and collaboration features

Other Features
Persistence / transactions
Command-based
JPA / JTA
Pluggable
Human Task Service
Eclipse plugin
Web-based management console
Installer

Flexible and Adaptive Processes Traditional workflow systems have problems with change, complexity, flexibility, data-intensive applications, etc.
Adaptive Case Management (ACM)
Unstructured, non-lineair or flexible processes
Event-driven BPM (edBPM)

Processes + Rules + Events

Flexible processes

jBPM5: What, where?
jBPM 5.0 (Feb 7th, 2011)
jBPM home page
Source http://github.com/krisv/jbpm
Blog http://kverlaen.blogspot.com/
#jbpm on irc.codehaus.org
[email_address]
jBPM user forum

BPMN2 and jBPM5 Kris Verlaenen jBPM5 Lead

BPMN2 and jBPM5

by Kris Verlaenen

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