05A_01WorkflowArchitecture

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SAP Workflow Course

Section 5A-01: Workflow ArchitectureNovember, 2001


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SAP Workflow Course Section 02: Workflow Architecture 1

Workflow Architecture

Contents:

Task

Workflow


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Workflow Architecture: Unit Objectives

At the conclusion of this unit, you will be able to:

Define terminology related to the workflow architecturalenvironment

Identify key components that make up the workflowenvironment and

Identify the relationships between components of the workflowruntime environment

Display template and underlying structure


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Workflow Architecture: Business Scenario

A prototype workflow template created for new requirements

You want to enhance the templates function

Lets explore the complexity of the workflow architecture


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Workflow System Components

Definition time

Process design

and definition

Workflow Manager

Runtime

Launch instances,

control process

Runtime

Interaction with users

and application tools

Analysis,modeling & definition tools

Workflow

definition

Business Workplace

Work item Manager


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Task/Workflow Definition 1

calculate

travel expenses

process

correspondence

check leave entitlement

release invoice

release absence form

process invoice

What?

Who?

When?

Task


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Task/Workflow Definition 2

Tasks

object method ormanual activity

Workflow (WS)

Task (TS)

Workflow

workflow definition

Time-independent and

client-independent



Task: Examples

Post invoice

Release document Change material master

Check work plan Run report

Approve absence

Call customer Who? What?



Tasks

Object type withobject method

Task

Properties

Who will beresponsible forthe task ?

What will beexecuted bythe task?

work item text: title of workitem in worklist

task description

notification text

deadline text

desired end text

latest start text

Texts

terminating events

triggering eventsOnly if the task is not usedin a workflow

Events

Organizationalplan



Object Methods and Single-Step Tasks

Object type

Ex invoice doc.order

material

arch. Doc.

create

object method

editobject method

display

object method

Reference to objectmethod

Objects are the encapsulation of behavior

for performing defined business tasks

Methods are the allowed functions of anobject

Task



Definition of Responsibility

The responsible agents are identified within the

workflow. Recipients of the work item will be identified at

runtime.

Possible Agent List:

All users who have

the possibility to

execute the task

Credit

Analysts

Sales Group

Sales managerstask



Work Item Text

A description of the work item in the worklist

Substitution of variables with runtime values

_WI_Object_Id

_WI_Actual_Agent...

Work item text Display absence notification no. &_WI_OBJECT_ID.NUMBER&

_WI_Object_Id.Number



Tasks: Other Texts

General description, notes on operation, information onenvironment, etc.

Task description

Text for completion

Text for missed deadline

Insert variables (including indirectly via object reference)

Example :

Employee &_WI_Object_ID.CreatedBy& created anotification of absence under the number&_WI_Object_ID.Number& on &_WI_Object_ID.CreateDate&.

Please decide whether to approve.



Workflows

Workflow template

Reference toworkflow definition

Specification oftriggering events

Definition ofinterface(import and exportparameters)

Initial valueassignment

Entry point to view or modify

the workflow definition via the

Workflow Builder



Workflow Definition: Steps

Workflow definition Step

Document generation

User decision

Condition Multiple condition

Event creator

Wait step

Process control

Container operation

Loop (until)

Loop (while)

Fork

Workflow template

Reference toworkflow definition

Specification oftriggering events

Definition ofinterface(import and exportparameters aselements ofworkflow container)

Initial valueassignment

Activity (task reference)



Demo Example: Workflow Definition

Submit notification of absence

Notification ofabsence created

Approve notification

of absence

approved

Send mail

sent

Resubmit forapproval?No

Terminate

workflow

Workflow

terminated

rejected

Revise notificationof absence?

No

cenceled

yes Revise notification

of absence

revised


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Workflow Definition: Workflow Builder

Block-oriented

modeling

Top-down modeling

is possible

Special functionssuch as cut, paste,

move, copy

Print: local / R/3

spool / file

Checking and

activating

Drag n Drop

functionality

Workflow Builder:

overview

workflow definition

step types

messages

task

object


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Workflow Definition: Basic Concepts

Desktop

applicationSAP

functionality

External

applications

Organizational

management

terminating

event

triggering

event

Organizational

management

Workflow

workflow definition

tasks

object types

methods

Triggering events

control the initial startof the workflow in

addition to the

termination and

calling of subsequent

tasks in the workflow

Each Task defined

under the workflow

will execute in the

arranged sequence

defined via the

workflow definition


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Workflow Architecture: Unit Summary

Workflow System Components

Provides tools for the development of workflow definitions

Runtime System manages the execution and requiredresources for workflow instance

Tasks

Workflow definitions are comprised of tasks and triggeringevents

Objects

The encapsulation of software for performing defined businesstasks

05A_01WorkflowArchitecture

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