Lesson 1 - Introduction to Enterprise Systems for Management.pdf
- 1. CHAPTER 1 Introduction to Enterprise Systems for Management Preview • In the early days of ERP implementation most management did not understand the magnitude of issues an organization has to consider before, during, and after implementation. • ERP systems are very different from conventional packaged software, such as Microsoft Office and others. • There are no shortcuts when it comes to implementing an enterprise system. Learning Objectives • Understand the information systems evolution and its historical role in the organization leading to systems integration and Enterprise Resource Planning (ERP). • Learn about ERP systems and evolution, components, and architecture; understand the benefits and drawbacks of implementing ERP systems and how they can help an organization improve its efficiency and worker productivity. • Gain an overview of the implementation process (e.g., the ERP life cycle, business process reengineering project management, and change management). Understand the role of people, vendors, consultants, and the organization in making the ERP implementation process successful. • Comprehend the ethical, global, and security challenges while implementing an ERP system, and look at the ERP vendors and industry trends. 2 Information Systems in Organizations • Information Systems are a critical component of a successful organization today. • Information Systems provide a high level of computer automation to support business functions such as: - Accounting - Finance - Marketing - Customer Service - Human Resource Management - Operations • Information Systems play a major role in primary and secondary activities of an organization s value chain
- 2. Information Systems in Organizations (Cont’d) Information Systems in Organizations (Cont’d) • Information systems include hardware, software, data processes, and people. • Information Technology is thus a component of Information Systems. • Information Technology includes only the hardware and software components. • Information systems generally use a three-phased model of input, process, and output. • The role of an information system is to process data into information using information technology, business processes, and people resources. Figure 1-1 Information System Components Figure 1-2 Phases of an Information System
- 3. Role of Information Systems in the Enterprise • Business organizations have become more complex due to increased layer of management hierarchy and increased level of coordination across departments. - Each department has different information needs. • No single information system can support all the business needs of an organization. • Management is generally categorized into three levels- Strategic, Middle, and Operational. - Each management level has different information requirements. Figure 1-3 Management Pyramid with Information Requirements Current Scenario Information Silos and Systems Integration • Over time, Information Systems create a hodgepodge of independent nonintegrated systems ultimately creating bottlenecks and interfering with productivity. • Organizations need to be agile and flexible and will require their information systems to have integrated data, applications, and resources from across the organization. • To compete effectively, organizations have to be customer focused. - This requires cross-functional integration among the accounting, marketing and other departments of the organization. • Islands of Information • Difficult to get timely & accurate information • Heterogeneous Hardware & Software platforms & practices • Poor connectivity between different organizational locations • Sticking with obsolete technology • Resist to change • Lack of proven man-power to develop integrated software
- 4. Enterprise Resource Planning (ERP) Systems WHAT IS AN ERP SYSTEM? • Enterprise Resource Planning Systems are the first generation of enterprise systems meant to integrate data and support all the major functions of organizations. • ERP systems integrate various functional aspects of the organization as well as systems within the organization of its partners and suppliers. • The goal of an ERP system is to make the information flow dynamic and immediate, therefore, increasing its usefulness and value. WHAT IS AN ERP SYSTEM? Figure 1-4 Integrated Systems - ERP Integrated Data Model • The heart of any ERP exercise is to create an integrated data model • The ERP application must be capable to provide true integration capability over the entire enterprise system to provide data for employees, suppliers and customers • General accounting to provide for multiple ledgers/sub- ledgers on a division by division basis. Online management summaries and consolidation eliminate extensive paperwork handling • Ability to drill down through successive levels of data provided • ERP and execution model and its flexible sets of integrated applications will keep the operations flowing efficiently • ERP should be looked upon as the acquisition of an asset and not as an expenditure 16
- 5. Enterprise Resource Planning (ERP) Systems (Cont’d) Why ERP ? • Another goal of ERP is to integrate departments and functions across an organization into a single infrastructure sharing a common database and serving the needs of each department. • ERP systems replace an assortment of systems that typically existed in organizations. Moreover, ERP solves critical problem of integrating information from different sources and makes it available in real-time. What are some of the Enterprise system drivers? • Systems Not Y2K Compliant • Disparate Systems • Poor/Uncompetitive Performance • Poor Quality/Visibility of Info • Cost Structure Too High • Not Responsive Enough to Customers • Complex, Ineffective Business Processes • Business Processes or Systems Not Integrated • Unable to Implement New Business Strategies • Business Becoming Global • Difficult to Integrate Acquisitions • Obsolete Systems • Inconsistent Processes • Unable to Support Growth • For Management - to know what is happening in the company • One solution for better Management • For cycle time reduction • To achieve cost control & low working capital • To marry latest technologies • To shun the geographical gaps • To satisfy the customers with high expectations • To be Competitive & for survival ERP Characteristics • Links all business processes automatically • Reduces the number of legacy systems • Reduces inter-processing time (transactions occur one time at the source) • Maintains an audit trail of all transactions • Utilizes a common database • Performs internal conversions automatically • (tax, foreign currency, legal rules for payroll) • Improves customer service by putting data at the fingertips of employees • Involves employees in the entire functional cycle
- 6. Evolution of ERP Evolution Timeline System Platform 1960s Inventory Management Mainframe legacy systems using third & Control generation software-(Cobol, Fortran) 1970s Materials Requirements Mainframe legacy systems using third Planning (MRP) generation software-(Cobol, Fortran) 1980s Materials Requirements Mainframe legacy systems using fourth Planning (MRP-II) generation database software and manufacturing applications. 1990s Enterprise Resource Mainframe client-server systems using fourth Planning generation database software and package software. 2000s Extended ERP or ERP- Client-server systems using Web platform, II open source with integration to fifth generation applications like SCM, CRM, SFA. 21 Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall 22 Core and Extended ERP Components Figure 1-5 ERP Components 23 24 Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall
- 7. Figure 1-6 ERP Components Integration ERP Systems Components • An ERP system consists of: Hardware Servers and peripherals Software Process Operating systems and database Information Organizational data from internal and external sources Process Business processes, procedures, and policies People End users and IT staff ERP Architecture • The architecture of an ERP system influences the cost, maintenance, and the use of the system. • The ERP architecture helps the implementation team build the ERP system for the organization. • If purchased, ERP architecture is often driven by the vendor (Package-Driven Architecture). • There are two types of architectures. - Logical focuses on the supporting needs of the end users. - Physical focuses on the efficiency of the system. Figure 1-7 Example of Architecture of ERP at Large University
- 8. Figure 1-8 Logical Architecture of an ERP System Figure 1-9 Tiered Architecture Example of ERP System System Benefits of an ERP System • Integration of data and applications across functional areas (i.e., data can be entered once and used by all applications; thus improving accuracy and quality of the data). • Improvements in maintenance and support as IT staff is centralized. • Consistency of the user interface across various applications means less employee training, better productivity, and cross-functional job movements. • Security of data and applications is enhanced due to better controls and centralization of hardware. System Limitations of an ERP System • Complexity of installing, configuring, and maintaining the system increases, thus requiring specialized IT staff, hardware, and network facilities. • Consolidation of IT hardware, software, and people resources can be cumbersome and difficult to attain. • Data conversion and transformation from an old system to a new one can be tedious and complex process. • Retraining of IT staff and end users of the new system can produce resistance and reduce productivity
- 9. Business Benefits of an ERP System • Agility of the organization in terms of responding to changes in environment for growth and maintaining market share • Sharing of information across functional areas helps collaboration between employees. • Linking and exchanging information in real-time with supply-chain partners improves efficiency leading to lower costs. Business Limitations of an ERP System • Better customer service due to quicker information flow across departments. • Efficiency of business processes are enhanced due to the re-engineering of business processes. • Retraining of all employees with the new system can be costly and time consuming. • Change of business roles and department boundaries can create upheaval and resistance to the new system. ERP and Business Processes ERP and Business Processes Cross-Functional Business Processes ERP and Cross-Functional Business Processes 35 36
- 10. ERP and Business Processes ERP and Business Process Change 37 ERP Implementation • Before implementing ERP, an organization has to plan and understand the life cycle of these systems. • The key to a successful implementation is to use a proven methodology, take it one step at a time, and begin with an understanding of the ERP life cycle. • ERP system implementations are very risky, and using a well-defined project plan with a proven methodology will assist in managing those risks. • There must be a strong well-communicated need to make the change from the existing information systems/applications to an ERP system. Figure 1-11 ERP Life Cycle Figure 1-12 ERP Implementation Methodology
- 11. Software and Vendor Selection • It is best for an organization that does not have the experience in developing ERP systems to purchase one on the market. • Before selecting a vendor, the organization must carefully evaluate its current and future needs in enterprise management systems. • Review the organization’s existing hardware, network, and software infrastructure, and the resources available for the implementation. Operations and Post-Implementation • Going live (“Go-live”) is one of the most critical points in a project’s success. • It is vital to focus the efforts of all project teams to ensure that task and activities are completed before going live. Five areas of stabilization are important: • Training for end-users • Reactive support (i.e., help desk for troubleshooting) • Auditing support to make sure data quality is not compromised by new system • Data fix to resolve data migration and errors revealed by audits • New features and functionalities to support the evolving needs of the organization Vendor Evaluation • Business functions or modules supported by their software • Features and integration capabilities of the software • Financial viability of the vendor as well as length of time they have been in business • Licensing and upgrade policies • Customer service and help desk support • Total cost of ownership • IT infrastructure requirements • Third-party software integration • Legacy systems support and integration • Consulting and training services • Future goals and plans for the short and long term Figure 1-14 Project Management
- 12. ERP Implementation Budget Hammer 2000 People and Organization (Cont’d) Change Management Role is essential because it prepares for changes to how business is done. In implementing new systems, communicating, preparing, and setting expectations is as important as providing training and support. Business Process Re-engineering Business processes will need to be changed, adjusted, or adapted to the new system to use the functionality of an ERP system fully. Global, Ethical and Security Management Outsourcing overseas, ethical issues, and problems with system security have also attracted a lot of attention in ERP implementation People and Organization Project Management For an ERP system to be implemented successfully, project management must provide strong leadership, a clear and understood implementation plan, and close monitoring of the budget. Consultants It is often the case for organizations without much ERP implementation experience to use implementation partners such as consultants. ERP Vendors SAP SAP is the recognized global leader among ERP vendors with over 12 million users. Its solutions are for all types of industries and for every major market. www.sap.com Oracle/Peoplesoft As the second largest ERP vendor, Oracle provides solutions divided by industry category and promises long- term support for customers of PeopleSoft- (acquired in 2004). www.oracle.com Infor The world’s third largest provider of enterprise software. It delivers integrated enterprise solutions in supply chain, customer relationship and suppliers management
- 13. ERP Vendors (Cont’d) Microsoft Dynamics Formerly Microsoft Business Solutions or Great Plains, Microsoft Dynamics is a comprehensive business- management solution built on the Microsoft platform. Lawson Industry-tailored software solutions that include enterprise performance management, distribution, financials, human resources, procurement, and retail operations. www.Lawson.com SSA Global Acquired Baan in 2004.They claim to offer solutions that accomplish specific goals in shorter time frames and are more efficient with time. Summary • Whereas the risks for implementing an ERP are greater, the payoff is very high for organizations. • The integration of data helps an organization to better meet the demands of a fast and dynamic business world. • The use of ERP systems provides for integrated data and business processes, thereby creating opportunities for organizations to expand and change as their business changes. Implications for Management • ERP systems implementation is a complex organizational activity. - It is important to evaluate and learn from the successes and failures. • ERP systems implementation requires strong project management oversight. • ERP systems provide improved and added functionality for an organization. Summary (Cont’d) • ERP components consist of hardware, software, information, process, and people to perform the fundamental phases of an information system: input, process, and output. • ERP system architecture is a blueprint of the actual ERP system. There are two types of architecture: physical and logical. • The selection of a system must be based on these needs and how well a vendor meets those needs now or in the future. • To be successful in implementing an ERP system, an organization and its management must clearly understand the implementation process.