css 496 business process re-engineering for bs(cs)

Department of Computer Science 1

CSS 496 Business Process Re-

engineering for BS(CS)

Chapter 2: Workflow Management

Khurram [email protected]

Based on Petia, Marlon, Aalst and Weske Lectures


Workflow Management The important achievement of workflow

management is explicit representation of process structures in process models and controlled enactment of business processes according to these models

The goal of workflow is to manage the flow of work so that right work is performed by right person at right time

Department of Computer Science

Workflow Management

3

Workflow is the automation of a business process, in whole or part, during which documents, information, or tasks are passed from one participant to another

for action, according to a set of procedural rules


Workflow ManagementA workflow management system (WFMS) is a software package that can be used to support the definition, management and execution of workflow processes

A workflow management system is a software systems that defines, creates, and manages the execution of workflows through the use of software, running one or more workflow engines, which is able to interpret the process definition, interact with workflow participants, and, where required, invoke the use of IT tools and applications


Informal Workflow


Business Process Management “True Business Process Management is an

amalgam of traditional workflow and the 'new' BPM technology. It then follows that as BPM is a natural extension of – and not a separate technology to – Workflow, BPM is in fact the merging of process technology covering 3 process categories: interactions between (i) people-to-people; (ii) systems-to-systems and (iii) systems-to-people – all from a process-centric perspective. This is what true BPM is all about.” Jon Pyke, CTO Staffware.


WFMS, EAI, BPMS


Enterprise Systems Architectures

OS

DBMS

ERP

OS

Inventory Management

OS

DBMS

SCM

Workflow Management System

Fig 2.18. Multiple-application workflow systems architecture

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Workflow Component

Fig 2.17. Single-application workflow systems achitecture

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A small case study: Double Check (DC)

Processing of insurance claims involving registration, two checks, and a payment of rejection

Five tasks: register (register insurance claim) checkA (check insurance policy) checkB (check damage reported) pay (pay for the damage) reject (inform customer about rejection)

Registration is followed by two checks which can be handled in parallel.

Each of the checks results in “OK” or “not OK”. If both are OK, pay otherwise reject. Three roles: register (for task register), checks (for both checks),

and pay/reject (for final tasks).

register

checkA

checkB

pay

reject


DC Example


DC Example

Adding a step


DC example


DC Example


DC Example

The manager’s view

Managing users/groups

Monitoring and managing

processes and cases


DC Example


Audit Trail


Event Driven Process Chains (ARIS/SAP)

Plannedtrip

is approved

Needto correctplanned

tripis transmitted

Entryof a

travelrequest

Needfor trip

has arisen

Tripis requested

Approvalof travelrequest

Plannedtrip

is rejected


Complex Process


Classification of Workflows

System Workflows A system workflow consists of activities that are

implemented by software systems without any user involvement

Human Interaction Workflows Workflows in which humans are actively involved

and interact with information systems are called human interaction workflows

css 496 business process re-engineering for bs(cs)

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