bpmn advanced concepts[1]

8/21/2019 BPMN Advanced Concepts[1]

1/41

Oracle

BPM11gT

raining

BPMN

Advanced

Concepts


2/41

MoreB

PMN-Events

BPMN

Events-Somethingthathappens

(signals)duringthe

courseofaprocesstha

taffectsthesequ

enceortimingso

fthe

activitiesofaprocess.

Cano

ccur

AttheStart-StartEvent

AttheEndEndEvent

Int

heMiddleIntermediateEvent

TwoT

ypes

row:

roucey

e

rocess

nvens

some

IntermediateEvents

fallunderthisca

tegory)

SendMessage

ThrowException

Waitforxamountof

time

Ca

tch:ConsumedbytheProcess(S

tartEvents&som

e

IntermediateEvents

fallunderthisca

tegory)

CatchExceptions(Timeout,Exceptions)

ReceiveMessage

2009OracleCorporationProp

rietaryandConfidential

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11gTrainingBPMNAdvancedTopic


3/41

More

Startand

EndEven

ts



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4/41

BPMN

byExamp

leMoreStartandE

nd

Events

Message

Start

Event

MessageEn

d

Event



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5/41

StartE

ventTypes

Starte

vent:

Listenstoexternalsignals

andcreatesanewprocess

instance.

MultipleStartEventscan

beusedtotriggeraprocess.

Com

monTypesofStartE

vents.Markersusedtodenote

thedifferenttypesoftriggeringmechanisms.

NoneCalledfroma

Mainprocess.Sub-pr

ocesses

mustalwaysstartwith

NoneStartEvent.

MessageTriggered

bythearrivalofaMessage.

Messaeisasecialt

eofdataandisusedto

showdataexchanges

inthecontextofproc

ess

interactions.

TimerTriggeredbas

edonsomeschedule

.Itcan

beafixedtimestamporaregularlyoccurringevent.

SignalTriggeredbasedonthearrivalofa

subscribedsignalviabroadcastmechanism

s.The

senderisunknownin

thiscaseandtheSign

alStart

Eventlistensonawellknowntopic.



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6/41

BPMN

byExamp

leMultip

leStartEv

ents

Theprocessissta

rted

eitherbythearrivalofthe

eventviamultiple

channels

ReceiveE-Mail

ReceiveSMS

ParseE-

Mail

HandleSMS

Faxarrived

Transcribe

Fax

P

rocess

R

equest



BPMSuite


XOREve

ntGatewayisus

edtomimicmultiplestartevents

(similartoBPELPick).

Thefirsteventthatarrives

triggerstheprocess.

Inthisca

se,itiseitherthe

firststepintheP

rocessorshould

be

preceded

byaStartEvent

oftypeNone.


7/41

BPMN

byExamp

leTriggerprocess

using

InitiateTask

InitiateTask



BPMSuite


InitiateTask

InitiateTaskisanOracle

extensiontoBPMN2

.0.

ItcanbeusedtotriggertheprocessfromtheT

askWorklistForm.

ThisTaskisalwaysprecededbyaStartEvent

oftypeNone.

The

assigneeiscalculate

dfromtheRoleassociatedwiththeswim

lane.


8/41

BPMN

byExamp

leTriggerprocess

using

ReceiveTask

ReceiveTask



BPMSuite


ReceiveTask

ReceiveTaskisoneofth

eBPMNtasktypes.

Itcanbeusedtotriggertheprocessuponarriv

alofaMessage.

Ithasthesamesemantic

sastheMessageSta

rtEventandcanbe

use

dinitsplace.


9/41

EndEv

entTypes

Endevent:

Sign

ifiesendoftheprocesspathandisgeneratedbythe

proc

essuponcompletion

MultipleEndeventsarepossible.

Processcompletesonlyw

henallPathsarecom

pleted.

Com

monTypesofEndEvents

NoneNormalComp

letion.Thecontrolpassestothe

subsequentstepinthemainprocessifasu

bprocess

completesnormally.

.

Messagecaninturntriggerotherprocesses.

SignalBroadcasts(publishes)signalbefore

Completion.

ErrorThrowsErrorB

eforeCompletion.Th

eprocess

getsterminatedanda

bortsotherpathsthat

mightstill

beinexecution.Used

asawaytotriggerex

ceptions

fromthesubprocesstoama



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10/41

BPMN

byExamp

leMultip

leEndEvents

MessageEnd

Eve

nt



BPMSuite


Examplethatshowscombinatio

nofGatewaysandmultipleEndEvents.On

lyone

oftheMes

sageEndEventisreachedinthisexample.

Another

Message

EndEven

t


11/41

BPMN

byExamp

leabrup

tterminationof

thepro

cess



BPMSuite


Whenan

ErrorEndEventisre

ached,theprocessorthesub-processterm

inates

evenifallotherparallelpathsarestillactive.

Usefulforpropagatingerrorsfromthesub-processtoparentprocess.

ErrorEnd

Event

TheprocessisterminatedwhenO

rder

Cancele

deventisreachedevenif

the

OrderP

artsorAssembleProductisstill

active.


12/41

BPMN

byExamp

leProcessasaSe

rvice

Receive

Reply



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13/41

Expos

ingProcessasaService

ToexposetheProces

sasaService

useMessage

StartEventandMess

ageEndEvent.

TheProcessthenbec

omesaServic

eProviderand

canbe

invokedviaaServiceinterfacebyotherBP

MN

orBPELprocesses.

TheMe

ssageStartEventandcorresponding

MessageEndEventtransformsinto

endpoints(

Operations).

TheEventSub-process(in-linefault

handlers)are

usedfo

rhandlingfaults.



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14/41

IntermediateEventsofty

pethrow

andcatch



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15/41

MoreB

PMNIntermediate

Events

Intermed

iateEventsoccurinthemiddleoftheprocess.

SomeIntermediateEventsa

reoftypeCatchand

someoftypeThrow

.

Throw

symbolsareshadedw

hileCatchsymbolsa

renot.

TheC

atchEventswaitorb

lockforappropriatesignalswhiletheThrowevents

procee

dafterthrowingthesignal.

ThrowIn

termediateEvent

s

throw

MessageIntermediateEvent

SendaMessagetomessage

toanother

particip

ant(orprocess).Use

dforrequest-responseandreceive-replysc

enarios.

throw

SignalIntermediateE

vent

Publishorbroadcastasignal.

CatchIn

termediateEvents

catch

TimerIntermediateE

vent

Actsasadelaymechanism.B

asedona

specifictimedateortimecy

cle.

catch

MessageIntermediateEvent

ReceivesMessage.Usedforrequest-

responseandreceive-reply

scenarios.

catch

SignalIntermediateE

vent

-Subscribes

toabroadcastedSig

nal.



BPMSuite



16/41

BPMN

byExamp

leWaitf

oraspecific

timeperiod

catchTimer

Inte

rmediateEvent.

blocksorwaitsfortheev

entstooccur.

Theexecutionisstalledanddoesnotproc

eeduntiltheevent

arrives.

TimerIntermediateEven

tisofCatchtypeonly.Thereisno

equivalentThrowtypeforTimerIntermediateEvent.

TheTim

erEventsuseth

esystemclockfo

rscheduling.



BPMSuite



17/41

BPMN

byExamp

leAsync

hronous

Invoca

tionusing

Message

Events.

SendQuoteto

Customer

ReceiveQuote

Responsefrom

Customer

thro

w

Messa

ge

Intermediate

Even

t

catch

Message

Intermediate

Event



BPMSuite


AthrowM

essageIntermed

iateEvent(send)

followedbycatch

Message

IntermediateEvent(receive)isasy

nchronousreque

st-

response

scenario.

AcatchM

essageIntermediateEvent(receiv

e)followedbythr

ow

Message

IntermediateEvent(send)isreceiv

e-replyscenario.

ThrowandcatchMessage

IntermediateEventsareusefulfor

asynchronousandB2BCollaborations


18/41

BPMN

byExamp

leAsync

hronous

Invoca

tionusing

Send&ReceiveTas

ks

SendTask.

ReceiveTask.Qu

otetocashProcess

.

SendTask

sendsaMessageandReceiveT

askreceivesa

Message.

SendTaskinthemiddleoftheprocessisthesameasthe

MessageIntermediateE

ventofthrow

type.

SendTaskattheendoftheproce

ssisthesameastheMe

ssageEndEvent.

ReceiveTaskinthemiddleofthe

processisthesameastheMessageIntermediateEventof

catchty

pe.

ReceiveTaskatthebeginningoftheprocessisthesameastheMessageStartEvent.



BPMSuite



19/41

BPMN

byExamp

leAsync

hronous

Invoca

tion

SendQuoteto

Customer

XOREvent

Gateway



BPMSuite


XOREventGatewayisuse

dforconditionalbranchingbasedon

alternativeincomingevents(Message,Signal,Conditional-Ru

le,Timer)

rathertha

ndataconditions.ThefirstEventtoarrive/triggersw

in.Any

Eventsthatarrivelaterare

ignored.

Itdoesno

thaveconditiona

lexpressionsontheoutgoingsequ

ence

flows.

andtheseque

nceofactivitiesarediffere

ntin

thesecases.Y

oucanalsoincludeacatc

h

IntermediateT

imerEventtohandletime

out

exceptions

CatchTimer

In

termediateEvent


20/41


pe

bou

ndar



BPMSuite



21/41

Attach

ed(Bound

ary)Events

IntermediateEventscanbeattachedtoan

activityorsub-process

boundary.

Theyare

oftypeCatcha

ndreferredtoas

BoundaryorAtta

ched

Events.

Theyhav

eonly1outgoing

sequenceflowth

atleadstoEventHandling

path.

Usefulfo

rExcetionandInterrutionHandlin.

Types

attachedErrorEventCatcheserrorthrownbytheactivityorsub-process.Errors

haveu

niqueidentifiers.Therecanbemultipleatta

chedErroreventsfor

catchingthe

various

typesoferrorsbeing

thrownbytheactivity

orsub-process.

attachedTimerEvent-Catchestime-outexceptio

ns(specializedtypeoferror)

thrown

bytheactivityorsub-

process.

attache

dMessageEventC

atchesMessagesentbyanotherparticipa

ntor

process.



BPMSuite



22/41

BPMN

byExamp

leBoun

daryEven

ts

TimerBoundaryEvent

(fo

rcatchingtimeoutexceptions)

ErrorB

oundaryEvent

(forcatchingexceptions)

ExceptionPaths



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11gTrainingBPMNAdvancedTopicE

rrorHandlingactivity

TheErrorandTimerboundary

eventsaretriggerediftheactivity

towhichtheyareattachedisnotyetcompleted.


23/41

BPMN

byExamp

leSubpr

ocess

Bound

aryevents

.

BoundaryError

InsertQuote-

Embeddedsubprocess



BPMSuite


su

b-process.

Ex

ceptionPath


24/41

BPMN

byExamp

leMore

Boundary

Events

Cancel

Order

Message

ExceptionPath

Message

Boundar

y

Event



BPMSuite


TheFulfillOrdersub-pro

cesslistensforth

eCancelOrderMessage

onasep

aratethread.The

Boundaryevents

donotblockthe

stepto

whichtheyareattachedw

hilelistening.

IftheMe

ssageisreceived

beforetheFulfillOrderstepisco

mplete,

theFulfillOrderstepisin

terrupted.

TheExceptionpathistakenandtheCancelOrderstepise

xecuted.

TheMes

sage,Error,Time

rboundaryevent

sarenotactiveif

theactivity

(task/sub

process)towhichtheyareattache

discompleted.


25/41

BPMN

byExamp

lePropa

gationof

Errors

Mainprocess

catchesthe

errorand

followsthe

exception

path.



BPMSuite


Subprocessthr

owsan

OrderCance

lederror.


26/41


peEvent

Sub

rocess



BPMSuite



27/41

Advan

cedBPMN

EventSubProcess

TheE

ventSub-Proces

siscontainedwithinaprocessora

subprocess.ItisnotapplicabletoaTask.

Itismarkedwithadottedlineboundaryandtr

iggeredbyaStartEvent.

Itd

oesnothaveincomin

goroutgoingsequen

ceflows.

Itc

anbecollapsedorex

panded.Whencollap

sed,ithasthemarkerofthe

StartEvent.

TypesofStartEventsforEventSubproc

ess

Me

ssage,

Error,Timer,Signal

Ithas

accesstotheda

taofits

arentsc

oeasnashota

tthe

point

intimewhenitsp

arentcompleted.

Justlikeboundaryeventsitlistensforexterna

lsignalsbutinsteado

f

tra

nsferringoutsideofth

eactivityitrunswithintheactivity(process

/

subprocess).



BPMSuite



28/41

BPMN

byExampleEventSubprocess

Eventsubprocess.

ErrorStart

Event

Process

ends

Boundaryerrorevent.

TheEventS

ubprocessinterrupts

theregularflowofthe

process.

ErrorStartE

ventisonlyusedinP

rocessEventHandle

rs.



BPMSuite



29/41

BPMN

byExampleEventSubProc

ess

Event

Subprocesswith

ErrorEndEvent.Ithas

tobec

aughtbya

corres

ponding

bound

aryevent.

Exception

Path

No

rmal

Path

Message

StartEvent

TherecanbemanyEventSubprocessesbutonlyonegets

activated.

Inthecas

eofEventSubprocessw

ithNoneEndEvent,the

normalflowafterthesub

processstep

isexecuted.

Inthecas

eofEventSubprocessthathasanErrororMessageEndEvent,thecorre

sponding

boundary

catcheventattachedto

thesubprocessboundaryistriggeredandtheeve

nthandling

pathistaken.



BPMSuite


correspondin

g

boundaryeve

ntthat

catchestheCancel

Ordererror.

EventSubproce

ss

withNoneEndEvent.

Normalflowafter

subprocessstepis

taken.

ErrorStart

Event


30/41

ImplementationofEvents



BPMSuite



31/41

Imple

mentation

ofMessageEvent

Cane

itherinitiate(sendorthrow)or

contin

ue(catchorreceive)

Messages.

MessageEventasinitiator:

Choosetheinitiateoption.

Yo

ucaneithercreatea

Service

interfaceonthefly

(or)

BrowseforanexistingS

ervice

fro

mtheBusinessCatalog.

MessageEventascontinua

tion:

ChoosetheContinuesoption.

Itwills

howalistofMessage

Endpointsthatcansen

d

messages.



BPMSuite



32/41

Imple

mentation

ofErrorE

vent

TheE

rrorEventscatcheso

r

throwsBusinessException.

DefineBusinessExceptions

GototheBusinessCatalog,

rig

ht-click,selectNew

op

tionandchooseBus

iness

Exception.

ThislaunchestheBusin

ess

Exceptionwizard.Choo

seor

cr

eaeao

eruner

BusinessCatalog.

SpecifytheXMLSchem

afor

th

eBusinessException.

Goto

theImplementation

tabof

theEndEventandchoosethe

desire

dBusinessException

..



BPMSuite



33/41

Implem

entationo

fTimer&

Signal

Events

TimerEvent

TheTimerEventsareusedfor

schedulingtheprocess

instantiationorforwaitingfo

ra

specifictimeperiod.

Twow

aystospecifytime:

Sp

ecificdatetime.

Sc

heduled,recurringtim

e

.



BPMSuite


SignalEvent

TheSig

nalEventsareusedfor

publish

ingorsubscribingtoa

wellknowntopicusingbroad

cast

mechanisms.

Browse

forEventsspecifiedin

theBus

inessCatalog.


34/41

Imple

mentation

ofSendT

ask

Referstoanasynchronous

send.

Send

Taskcaneitherinitiatethe

conve

rsation(asynchronous

reque

st-response)orreplytoa

conve

rsation(receive-reply).

Send

Taskasinitiator:


Browseforanexisting

ServiceoraMessageE

nd

PointintheProcessfromthe

usness

aaog.

Send

Taskasreply:

ChoosetheContinues

op

tion.

It

wills

howalistofReceive

Tasksinthesameprocess.

TheS

endTaskhasonlyinp

ut

argum

ents.



BPMSuite



35/41

Imple

mentation

ofReceiv

eTask

Receiveamessage.

ReceiveTaskcaneitherinitiatethe

conve

rsation(receive-reply)orreply

toaconversation(request-response).

Itcan

alsoinitiatetheproce

ss

ReceiveTaskasinitiator:


Youcaneithercreatea

Service

interfaceonthefly

(or)

BrowseforanexistingS

erviceor

ProcessfromtheBusiness

Catalog.

ReceiveTaskasreply:

ChoosetheContinuesoption.

It

wills

howalistofSen

dTasks

in

thesameprocess.

TheR

eceiveTaskhasonly

output

argum

ents.



BPMSuite



36/41

Loop

&Multi-in

stanceMarkers



BPMSuite



37/41

BPMN

Loopsus

ingActivityMarkers

Markers

oriconscanbea

ddedtoTasksor

Sub-

processestoillustratefurthersemanticcon

text

aroundTaskbehavior.

LoopMarker

UsedtocreateaForloop.

ImplementationAttributes:

L

oopCondition(Expression)

L

oopMaximum(Integer)

L

oopconditionevaluation

time



BPMSuite


Beginning(while-0or

more)

End(until-10rmore)

Looping

Subpro

cess


38/41

BPMN

LoopsusingMulti-In

stance

Marker

Multi-instancemarkeris

awrapper

forthe

Activitytoexecutethe

activity

multipletimes.Itisused

whenthesamepathinthe

proces

sneedstobeexecuted

morethanonetime.

Activitiescanbeexecutedeither

Parallel

Multi-instance

subpr

ocess

SequentialMulti-instance

subprocess



BPMSuite


sequentially(instancesa

regenerated

sequentially)

parallel(allinstancesare

generated

firs

tandexecutedinparallel).

Numberofinstancesdependson

eitherthe

Loopcardinalityattribute

Nu

mberofinstancesintheincoming

data(usuallyanArray).


39/41

BPMN

Example

Multi-ins

tancescenario



BPMSuite


Multi-instance

Marker


40/41



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41/41

Thepre

cedingisinten

dedtooutline

ourgeneral

productdirection.Itis

intendedforin

formation

purposesonly,andmaynotbeincor

poratedintoany

contrac

t.Itisnotacommitmenttodeliverany

materia

l,code,orfunctionality,ands

houldnotbe

cleCorporationProp


BPMSuite


reliedu

poninmaking

purchasingde

cisions.

Thedevelopment,release,andtimin

gofany

featuresorfunctionalitydescribedfo

rOracles

productsremainsatth

esolediscretionofOracle.

bpmn advanced concepts[1]

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