9 information systems development

Lecture 9: Business Process and Information Systems Development nga.lethiquynh@ueh.edu.vn... Q6 What are the keys for successful process and systems development projects?... Business P

Lecture 9: Business Process

and Information Systems

Development

nga.lethiquynh@ueh.edu.vn

Q3 How to model a Business Process?

Q4 How Are Business Processes and

Information Systems Related?

Q5 What are systems development activities?

Q6 What are the keys for successful process

and systems development projects?

Q1 Why do organizations

need to manage business

processes?

Business Process

 Business Process: a network of activities,

repositories, roles, resources, and data flows

that interact to accomplish a business

function

 Example:

 Process an Order (next slide)

 Steps in hiring an employee

 Some processes tied to functional area

 Sales and marketing: identifying customers

 Some processes are cross-functional

 Fulfilling customer order

Business Process

Source: textbook [1], page 331

Why Does Business Process Need

Management?

 Processes That Don’t Work Well

 Change in Technology

 Change in Business Fundamentals

 Market, Product lines, Supply chain,

Company policy, Company organization,

Internationalization, Business environment

Q2 What Are the Stages in

Business Process Management

(BPM)?

Business Process Management (BPM)

 Business Process Management (BPM):

 focuses on improving corporate

performance by managing and optimizing

a company's business processes

 See more: What is BPM in 3 minutes

Stages in the BPM Cycle

Source: textbook[1], pg 333 Source: wikipedia

Business Process Reengineering

 A radical form of fast change

 Not continuous improvement, but

elimination of old processes, replacement

with new processes, in a brief time period

 Can produce dramatic gains in productivity,

but increases organizational resistance to

change

 See more: Business Process Reengineering

Q3 How to model a

Business Process?

Business process models

 Business process models:

 Shows functional relationships versus time

 Can help in measuring loading on various

functional areas

 Illustrates cross-function communication

processes

 are often called ‘swimlane diagrams’ because the

‘swimlanes’ form a key element of the models

 Other names: process maps, cross-functional

flowchart.

Modeling using BPMN (Business

Process Modeling Notation)

Source: textbook[1], pg 335

Modeling using BPMN example

Source:

textbook[1],

pg 336

Modeling using Cross-Functional

Q4 How Are Business

Processes and Information

Systems Related?

Relationship of Business Processes

and Information Systems

 Relationship of business processes to

information systems is many-to-many,

or N:M

 A business process need not relate to any

information system, but an information

system relates to at least one business

process.

Source: textbook[1], pg 341

Q5 What are systems

development activities?

Systems Development

 Systems development: the process of

creating and maintaining an

information system

 The most common technique for

developing IS is the systems

development life cycle (SDLC)

Systems Development Life Cycle (SDLC)

Source: textbook[1], pg 343

SDLC: System Definition Phase

Source: textbook[1], pg 345

SDLC: Requirements Analysis Phase

Source: textbook[1], pg 350

SDLC: Component Design Phase

Source: textbook[1], pg 351

SDLC: Implementation Phase

Source: textbook[1], pg 351

SDLC: System Maintenance Phase

Source: textbook[1], pg 353

Q6 What are the keys for

successful process and

systems development

projects?

Keys for successful process and

systems development projects?

 Create a work-breakdown structure

 Estimate time and costs

 Create a project plan

 Adjust plan via trade-offs

 Manage development challenges

Example Work-Breakdown Structure (WBS)

Source: textbook[1], pg 358

Gantt Chart of the WBS

Source: textbook[1], pg 359

Primary Drivers of Systems Development

 A trade-off is a balancing of three critical

factors: requirements, cost, and time

Source: textbook[1], pg 361

Manage Development Challenges

Diseconomies of scale

Brooks’ Law

“Adding more people to a late project

makes the project later.”

New staff must be trained by

productive members who lose

productivity while training

Schedules can be compressed only so

far

Once a project is late and over

budget, no good choice exists

Q3 How to model a Business Process?

Q4 How Are Business Processes and

Information Systems Related?

Q5 What are systems development activities?

Q6 What are the keys for successful process

and systems development projects?

Additional Resources

 BPM: What is BPM in 3 minutes

 BPR