9 information systems development

Lecture 9: Business Process and Information Systems Development nga.lethiquynh@ueh.edu.vn Study questions Q1 Why organizations need to manage business processes? Q2 What are the stages of Business Process Management (BPM)? 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 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  Steps  in hiring an employee Some processes tied to functional area   an Order (next slide) 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 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 10 SDLC: System Definition Phase Source: textbook[1], pg 345 21 SDLC: Requirements Analysis Phase Source: textbook[1], pg 350 22 SDLC: Component Design Phase Source: textbook[1], pg 351 23 SDLC: Implementation Phase Source: textbook[1], pg 351 24 SDLC: System Maintenance Phase Source: textbook[1], pg 353 25 26 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 27 Example Work-Breakdown Structure (WBS) Source: textbook[1], pg 358 28 Gantt Chart of the WBS Source: textbook[1], pg 359 29 Primary Drivers of Systems Development  A trade-off is a balancing of three critical factors: requirements, cost, and time Source: textbook[1], pg 361 30 Manage Development Challenges  Coordination  Diseconomies of scale  Brook's Law  Configuration control  Unexpected events 31 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 far Once can be compressed only so a project is late and over budget, no good choice exists 32 Study questions Q1 Why organizations need to manage business processes? Q2 What are the stages of Business Process Management (BPM)? 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? 33 Additional Resources  BPM: What is BPM in minutes  BPR 34 9/14 /202 35