The document provides an overview of jBPM (JBoss Business Process Management) and business process management concepts. It discusses BPM ideas and frameworks, the jBPM architecture and features like human tasks, decisions, events, and APIs. It also covers best practices like process design patterns, event-driven architecture, externalizing logic, and versioning processes and decisions. The presentation aims to help attendees become experts in jBPM for modeling and executing business processes.

1. 2010
From zero to jBPM hero!
Tomasz Bujok

2. 2010
Agenda
• Trochę teorii - idee fix BPM
• jBPM – „let’s make your work flow”
• Frontendowe aplikacje typu workflow
• Solidne demo!
• Wzorce projektowe / dobre praktyki
• Wersjonowanie procesów

3. 2010
Cel prezentacji
vs.

4. 2010
Proces biznesowy
• Seria powiązanych ze sobą
działań lub zadań, które
rozwiązują określony problem lub
prowadzą do osiągnięcia
określonego efektu.
• Zaplanowany przebieg działań
mający na celu uzyskiwanie
określonych rezultatów.

5. 2010
Business Process Management
• Dziedzina zarządzania
• Niezwiązana z IT
• Wprowadza poziom abstrakcji
• Cykl życia składa się z 5 faz
– Zaprojektuj - BPML
– Zaimplementuj – BPEL
– Uruchom – BPMS
– Zbadaj wydajność - BPMS
– Zoptymalizuj - BPR

6. 2010
Business Process Modeling Lang.
• Business Process Modeling Notation (BPMN)
• Cognition enhanced Natural language
Information Analysis Method (CogNIAM)
• Extended Business Modeling
Language (xBML)
• Event-driven process chain (EPC)
• ICAM DEFinition (IDEF0)
• Unified Modeling Language (UML)

7. 2010
Business Process Execution Lang.
• Event-driven Process Chains (EPC) by ARIS,
• Business Process Execution Language (BPEL),
• Web Services Choreography Description
Language (WS-CDL),
• XML Process Definition Lang. (XPDL),
• Java Process Definition Lang. (JPDL) by jBPM
<task name="Accept offer">
<transition to="charge customer"/>
<transition name="timeout" to="cancel">
<timer duedate="1 day"/>
</transition>
</task>

8. 2010
BPMS oraz BPR

9. 2010
BPMS – do wszystkiego czy do…?

10. 2010
„Standalone BPM is dead”
• High cost of setup. This implies
getting the software up and
running and also get all people up
to speed with the technology.
• High cost of integrating the
BPM system with the outside
world. Integration results in a
significant threshold.
http://processdevelopments.blogspot.com/2010/05/standalone-bpm-is-dead.html

11. 2010
Magic quadrant for BPMS

12. 2010
jBPM4 Execution Mode
Processes
Executions
History
JVM
(1)
Persistent
Dynamic

13. 2010
jBPM4 Architecture
PVM InternalsPVM Interface
ProcessEngine
Process
Service
Execution
Service
Management
Service
Task
Service
Command
Service
Interceptor
Interceptor
Commands
Event Listener
API
ServicesClient
Diagram downloaded from: http://www.slideshare.net/camunda/jboss-jbpm-4 (later modified)

14. 2010
Human Task
<process name="TaskProcess">
<start>
<transition to="AcceptOffer" name="Start"/>
</start>
<task name="AcceptOffer">
<transition to="OfferAccepted" name="AcceptOffer" />
</task>
<end name="OfferAccepted"/>
</process>

15. 2010
Membership / Assignment
<process name="MembershipProcess">
...
<swimlane candidate-groups="ROLE_ANALITYK" name="LOAN">
<task name="Task1" candidate-groups="ROLE_DORADCA">
<transition ... />
</task>
<task name="Task2" swimlane="LOAN">
<transition ... />
</task>
<task name="Task3">
<assignment-handler class="pl.javarsovia.Assigner">
<transition ... />
</task>
...
</process>

16. 2010
State
<process name="StateProcess">
<start>
<transition to="wait"/>
</start>
<state name="wait">
<transition to="end"/>
</state>
<end name="end"/>
</process>

17. 2010
Decision
<process name="DecisionProcess">
...
<decision name="decide">
<handler expr="pl.javarsovia.Decider"/>
<transition to="success"/>
<transition to="failure"/>
</decision>
<decision name="evaluate document" expr="#{content}">
<transition name="OK" to="success" />
<transition name="NOK" to="failure" />
</decision>
...
</process>

18. 2010
Java
<process name="JavaProcess">
...
<java name="service" method="notify"
class="pl.javarsovia.Notificator">
<field name="retryCount" >
<int value="100" />
</field >
<arg>
<string value="Hello Javarsovia!"/>
</arg>
<transition to="end"/>
</java>
...
</process>

19. 2010
Fork-Join
<process name="ForkJoinProcess">
...
<fork name="fork">
<transition to="notify"/>
<transition to="execute"/>
</fork>
<task name="notify"> ... </task>
<task name="execute"> ... </task>
<join name="join">
<transition to="end"/>
</join>
...
</process>

20. 2010
Event-listener
<process name="EventListenerProcess">
...
<task name="AcceptOffer">
<on event="start|end">
<event-listener
class="pl.javarsovia.Listener">
</event-listener>
</on>
<transition to="notify">
<event-listener
class="pl.javarsovia.Listener">
</event-listener>
</transition>
</task>
...
</process>

21. 2010
Timer
<task name="AcceptOffer">
<transition to="Accept" />
<transition to="Escalate" >
<timer duedate="10 minutes" >
</transition>
</task>
<state name="GuardedWait">
<transition to="Accept" />
<on event="timeout">
<timer duedate="2 business days" >
<event-listener class="pl.javarsovia.Listener"/>
</on>
</state >

22. 2010
jBPM4 API
Process engine
RepositoryService
Managing deployments
Deployment createDeployment()
deployment.addResourceFromClasspath("")
ProcessDefinitionQuery
createProcessDefinitionQuery();
Diagram downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

23. 2010
jBPM4 API
Process engine
RepositoryService
ExecutionService
Managing runtime executions
startProcessInstanceById(pd_id)
signalExecutionByXXX
Get/setVariable(s)
Diagram downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

24. 2010
jBPM4 API
Process engine
RepositoryService
ExecutionService
TaskService
Managing tasks
takeTask(actor)
completeTask(outcom)
cancelTask(task)
AssignTask(actor)
findTaskXXX
Diagram downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

25. 2010
jBPM4 API
Process engine
RepositoryService
ExecutionService
TaskService
HistoryService
Managing past runtime data
HistoryActivityInstanceQuery query=
historyService.createXXXQuery()
.activityName("Wait")
.executionId(“123");
query.execute
Diagram downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

26. 2010
jBPM4 API
Process engine
RepositoryService
ExecutionService
TaskService
HistoryService
ManagementService
Process engine maintenance
executeJob(long jobDbid)
Diagram downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

27. 2010
jBPM4 API
Process engine
RepositoryService
ExecutionService
TaskService
HistoryService
ManagementService
Aplikacja
Komunikacja tylko przez interfejsy
Diagram downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

28. 2010
Transakcyjność
• Continue:
– sync
– async
– exclusive
Transaction 1 Transaction 2
Job
Executor

29. 2010
Demo
Picture downloaded from: http://www.slideshare.net/camunda/jboss-jbpm-4

30. 2010
Workflow use-case

31. 2010
Workflow use-case

32. 2010
Workflow use-case

33. 2010
Workflow use-case

34. 2010
Workflow use-case

35. 2010
Workflow use-case

36. 2010
Workflow use-case

37. 2010
Workflow use-case

38. 2010
Workflow use-case

39. 2010
Workflow use-case

40. 2010
Workflow use-case

41. 2010
Workflow use-case

42. 2010
Workflow z BPM
• Występują human-tasks
• Występuje podział na role procesowe
• Dekompozycja logiki jest możliwa
• Potrzebujemy maszyny stanów
• Równoległa praca na sprawie/procesie
• Wymagane wersjonowanie „na zakładkę”

43. 2010
Co wybrać?
• Java
– Trwa dłużej
– Proces niewidoczny
– Wait state’y
– Eskalacje / timeout’y
• BPM
– Same plusy 

44. 2010
Demo
Picture downloaded from: http://www.slideshare.net/camunda/jboss-jbpm-4

45. 2010
Korzyści
• „Czysta” architektura
• Eksternalizacja logiki biznesowej
• Podział ról
• Łatwość wprowadzania zmian
• Prostota wyrażania konstrukcji
• NIH – „plumbing code”

46. 2010
Patterns and Practices
Picture downloaded from: http://www.slideshare.net/jorambarrez/presentation-jbpm-community-day-2009-first-steps-with-jbpm4

47. 2010
1. Design procesów
• Wizard?
• Entry-point?

48. 2010
2. Ziarnistość procesów
ACTION
ACTION
ACTION
COMPOSITE
ACTION
service.invokeA()
service.invokeB()
service.invokeC()
service.invokeABC()

49. 2010
3. Event-driven architecture!!!
public boolean isValidationRequired(String transition) {
if (
transition.equalsIgnoreCase(STEP_TO_INITIALCREDITABILITY) ||
transition.equalsIgnoreCase(STEP_TO_ASSESSMENT) ||
transition.equalsIgnoreCase(STEP_ACCEPTED_CHANGED_DATA) ||
transition.equalsIgnoreCase(STEP_TO_REGISTER_APPLICATION) ||
transition.equalsIgnoreCase(STEP_TO_AGREEMENT) ||
transition.equalsIgnoreCase(STEP_RUN_CREDIT) ||
transition.equals(STEP_VERIFY_DOCS_BY_STARTUP)
) {
return true;
} else {
return false;
}

50. 2010
4. Lokalizacja logiki (1/3)
TASK TASK
EVENT
EVENT

51. 2010
TASK
4. Lokalizacja logiki (2/3)
EVENT
TASK
EVENT
TASK

52. 2010
4. Lokalizacja logiki (3/3)
TASK TASK
EVENT
EVENT
TASK TASK

53. 2010
5. Wersjonowanie (1/3)
Interfejs użytkownika
Warstwa aplikacyjna
Świat zewnętrzny (ESB)
Procesy biznesowe
Arty
fakt

54. 2010
5. Wersjonowanie (2/3)
<process name="DecisionProcess">
...
<decision name="decide">
<handler class="pl.javarsovia.Decider">
<field name="argument">
<object class="pl.javarsovia.DecisionArgument">
...
</object>
</field>
</handler>
</decision>
...
</process>

55. 2010
5. Wersjonowanie (3/3)
<process name="DecisionProcess">
...
<decision name="decide">
<handler expr="${decider}">
<field name="argument">
<object expr ="${decisionArgument}">
...
</object>
</field>
</handler>
</decision>
...
</process>

56. 2010
6. Flow context - wersjonowanie
PROCESS FLOW CONTEXT
class FlowContext {
String username;
Integer nodeCount;
Date activityDate;
}
<flowContext>
<username></username>
<nodeCount></nodeCount>
<activityDate></activityDate>
</flowContext>

57. 2010
7. Walidacje
TASK1
TASK3TASK2

58. 2010
7. Walidacje
TASK1
TASK3TASK2
V1 1.W trakcie trwania
zadania – np. zapis.

59. 2010
7. Walidacje
TASK1
TASK3TASK2
V1
V2
2. W trakcie
wyjścia z zadania

60. 2010
7. Walidacje
TASK1
TASK3TASK2
V1
V2
V3 V4
3 i 4. W trakcie próby
przejście wybraną
ścieżką

61. 2010
jBPM - Status projektu
Sep Oct Dec Jan Feb Mar Apr May Jun Jul Aug Sep
20102009
Nov
4.1 4.2 4.3 4.4 4.5
jBPM 5
BPMN 2.0
jPDL

62. 2010
jBPM - Status projektu
Sep Oct Dec Jan Feb Mar Apr May Jun Jul Aug Sep
20102009
Nov
4.1 4.2 4.3 4.4 4.5
jBPM 5
BPMN 2.0
jPDL

63. 2010
Dziękuję 
Picture downloaded from: http://www.slideshare.net/camunda/jboss-jbpm-4

64. 2010
Q&A