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Enterprise Resource Planning
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Mô tả chi tiết
Management for Professionals
For further volumes
http://www.springer.com/series/10101
K. Ganesh • Sanjay Mohapatra
S. P. Anbuudayasankar • P. Sivakumar
Enterprise Resource
Planning
Fundamentals of Design and Implementation
1 3
ISSN 2192-8096 ISSN 2192-810X (electronic)
ISBN 978-3-319-05926-6 ISBN 978-3-319-05927-3 (eBook)
DOI 10.1007/978-3-319-05927-3
Springer Cham Heidelberg New York Dordrecht London
Library of Congress Control Number: 2014938398
© Springer International Publishing Switzerland 2014
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K. Ganesh
Supply Chain Management - Center of
Competence
McKinsey Knowledge Center (McKC) |
McKinsey & Company, Inc.
Ascendas International Tech Park
TamilNadu
India
Sanjay Mohapatra
Xavier Institute of Management
Bhubaneswar
India
S. P. Anbuudayasankar
Department of Mechanical Engineering
Amrita School of Engineering
Coimbatore
India
P. Sivakumar
Vickram College of Engineering
Enathi, Sivagangai
India
v
Preface
This book is designed to meet the needs of researchers and students. The text assumes that the reader knows basic system analysis and design (SAD). The SAD
techniques required for understanding some advanced topics are incorporated in
individual chapters.
This book’s main objective is to introduce, in a unique manner, the fundamental
principles of understanding business requirements and fitting enterprise resource
planning (ERP) to meet these business needs. The book also helps to understand
the usage of ERP for monitoring and controlling business processes. A sufficient
number of topics has been covered in detail to enable the readers to follow without
much difficulty.
The first three chapters of this book introduce multiple deployment considerations, project initiation and core process analysis. These chapters provide an overview of prerequisites, activities, deliverables and critical success factors of project
initiations and core process analysis. We believe that once you understand the basic
principles of detailed activities, creating solutions to critical success factors is a
matter of fact.
Chapters 4 through 6 present techniques and strategies for conference room pilot, customization, interface and conversion for improving aligning ERP with business models.
Chapters 7 through 11 suggest system integration testing, training and user acceptance test. These chapters offer recommendations regarding effective and productive testing techniques before production goes live.
Finally, Chap. 12 explores project management and its objectives. This last chapter provides detailed activities and deliverables for project management. We also
discuss decision matrices and critical success factors for implementation.
vii
Contents
1 ERP as a Business Enabler........................................................................ 1
1.1 Introduction......................................................................................... 1
1.2 Evolution of ERP ................................................................................ 2
1.2.1 Scope for MRP-I...................................................................... 3
1.2.2 MRP-II..................................................................................... 4
1.3 Need for ERP ...................................................................................... 6
1.4 Overview of ERP ................................................................................ 7
1.5 Modules of ERP.................................................................................. 8
1.5.1 Components of Material Management Module....................... 8
1.6 ERP Life Cycle.................................................................................... 9
1.7 How ERP Improves Productivity of Business Processes.................... 11
1.8 Benefits of Automation Through ERP ................................................ 12
1.8.1 Collaboration Approach........................................................... 12
1.8.2 Cross Functional Barrier is Broken ......................................... 13
1.8.3 Integration of Island of Automation ........................................ 13
1.8.4 Key Principles for Integration of Islands................................. 14
1.9 ERP Products....................................................................................... 17
1.9.1 SAP.......................................................................................... 17
1.9.2 PeopleSoft................................................................................ 18
1.9.3 Oracle ...................................................................................... 18
1.9.4 Microsoft Dynamics................................................................ 19
1.9.5 Comparison of ERP Packages................................................. 19
1.10 Trend in ERP: Open-Source ERP........................................................ 25
1.10.1 Definition of Open Source....................................................... 26
1.10.2 Advantages of Using Open-Source ERP ................................. 26
1.10.3 Conclusion............................................................................... 27
1.11 MIS and ERP....................................................................................... 29
1.12 Summary ............................................................................................. 30
1.13 Glossary............................................................................................... 30
1.14 Review Questions................................................................................ 31
1.15 Project Work........................................................................................ 31
1.16 Case Study........................................................................................... 32
viii Contents
1.16.1 Background.............................................................................. 32
1.16.2 Current Situation ..................................................................... 33
1.16.3 Challenges ............................................................................... 34
1.16.4 Discussion Points..................................................................... 34
1.16.5 Notes that will help in Discussion........................................... 34
Further Reading............................................................................................ 35
2 Introduction................................................................................................ 37
2.1 Target Audience................................................................................... 39
2.1.1 Multiple Deployment Sites/Multiphase Considerations.......... 39
2.1.2 Structure of the Document....................................................... 40
2.2 Project Initiation.................................................................................. 41
2.2.1 Objective.................................................................................. 41
2.2.2 Prerequisites ............................................................................ 43
2.2.3 Detail Activities....................................................................... 44
2.2.4 Decision Matrix/Checklist....................................................... 46
2.2.5 Critical Success Factors........................................................... 47
3 Core Process Analysis................................................................................ 49
3.1 Objective ............................................................................................. 49
3.2 Prerequisites........................................................................................ 50
3.2.1 Business Requirement Definition............................................ 50
3.2.2 Business Requirement Mapping.............................................. 50
3.3 Detail Activities................................................................................... 51
3.3.1 Business Requirement Definition............................................ 51
3.3.2 Core Process Analysis: Key Process Owners Training ........... 56
3.3.3 Core Process Analysis: Business Requirement
Mapping and Gap Analysis/Resolution................................... 59
3.4 Deliverables (Table 3.11) .................................................................... 67
3.5 Decision Matrix/Checklist (Table 3.12).............................................. 67
3.6 Critical Success Factors ...................................................................... 67
4 Conference Room Pilot.............................................................................. 71
4.1 Objective ............................................................................................. 71
4.2 Business Flow Diagram: Conference Room Pilot .............................. 73
4.3 Prerequisite.......................................................................................... 73
4.4 Detailed Activities............................................................................... 74
4.4.1 Prepare Instance Strategy ........................................................ 74
4.4.2 Prepare Backup Strategy ......................................................... 74
4.4.3 Define Application Instance Management Procedures............ 74
4.5 Install the CRP Instance ...................................................................... 75
4.5.1 Define Application Setup ........................................................ 75
4.5.2 Unit Testing and CRP.............................................................. 78
4.6 Deliverables (Table 4.2)...................................................................... 82
Contents ix
4.7 Decision Matrix/Checklist (Table 4.3)................................................ 82
4.8 Critical Success Factors ...................................................................... 82
5 Customizations........................................................................................... 85
5.1 Objective ............................................................................................. 85
5.2 Process Flow Diagram: Implementation of Customization ................ 85
5.3 Implementation Schedule—Customization ........................................ 85
5.4 Prerequisite.......................................................................................... 86
5.5 Detail Activities................................................................................... 87
5.5.1 Gap Analysis............................................................................ 87
5.5.2 Analyze Dependency ............................................................... 87
5.5.3 Design...................................................................................... 88
5.5.4 Development............................................................................ 88
5.6 Deliverables......................................................................................... 89
5.7 Decision Matrix/Checklist .................................................................. 89
5.8 Critical Success Factors ...................................................................... 89
6 Interface and Conversion.......................................................................... 91
6.1 Objective ............................................................................................. 91
6.2 Business Flow Diagram ...................................................................... 91
6.3 Implementation Schedule—Interface.................................................. 93
6.4 Prerequisite.......................................................................................... 93
6.5 Detail Activities................................................................................... 93
6.5.1 Identify Interfaces and Tools................................................... 93
6.5.2 Prepare Interface-Building Plan .............................................. 94
6.5.3 Interface Designing ................................................................. 94
6.5.4 Interface Development ............................................................ 95
6.5.5 Interface Integration Testing.................................................... 96
6.5.6 User Acceptance Testing.......................................................... 96
6.5.7 Identify and Freeze Source Data Files..................................... 97
6.5.8 Load and Validate Source File for Data Migration.................. 97
6.5.9 Load and Validate Backlog Transaction Data.......................... 98
6.6 Deliverables......................................................................................... 98
6.7 Decision Matrix/Checklist .................................................................. 99
6.8 Critical Success Factors ...................................................................... 99
7 System Integration Testing........................................................................ 101
7.1 Objective ............................................................................................. 101
7.2 Business Flow Diagram ...................................................................... 101
7.3 Implementation Schedule—System and Regression Testing
(Table 7.1) ........................................................................................... 102
7.4 Prerequisite.......................................................................................... 102
7.5 Detail Activities................................................................................... 103
7.5.1 Define Testing Requirement and Strategy............................... 103
7.5.2 Prepare Testing Environment .................................................. 103
x
7.5.3 Perform System Integration Testing ........................................ 104
7.5.4 Regression Testing................................................................... 105
7.6 Deliverables (Table 7.6)...................................................................... 106
7.7 Decision Matrix/Checklist (Table 7.7)................................................ 106
7.8 Critical Success Factors ...................................................................... 106
8 Training....................................................................................................... 109
8.1 Objective ............................................................................................. 109
8.2 Workflow Diagram of Training Process.............................................. 109
8.3 Implementation Schedule: Training (Table 8.1).................................. 110
8.4 Prerequisite.......................................................................................... 110
8.5 Detail Activity and Task List for Training .......................................... 110
8.5.1 Assess User Requirements....................................................... 110
8.5.2 Develop Training/User Procedures Strategy ........................... 113
8.5.3 Develop Training Curriculum and End User
Documentation ........................................................................ 114
8.5.4 Deliver Training....................................................................... 117
8.6 Deliverables (Table 8.6)...................................................................... 119
8.7 Decision Matrix/Checklist (Table 8.7)................................................ 119
8.8 Critical Success Factors ...................................................................... 121
9 User Acceptance Test ................................................................................. 123
9.1 Objective ............................................................................................. 123
9.2 Implementation Schedule—UAT........................................................ 124
9.3 Prerequisite.......................................................................................... 124
9.4 Detail Activities................................................................................... 125
9.4.1 UAT Strategy ........................................................................... 125
9.4.2 Prepare UAT Environment ...................................................... 125
9.4.3 Conduct UAT........................................................................... 126
9.5 Deliverables......................................................................................... 126
9.6 Decision Matrix/Checklist .................................................................. 126
9.7 Critical Success Factors ...................................................................... 126
10 Production Go Live.................................................................................... 129
10.1 Objective ............................................................................................. 129
10.2 Workflow of the Production Go Live phase
(Fig. 10.1; Table 10.1)........................................................................ 129
10.3 Prerequisite.......................................................................................... 129
10.4 Detailed Activities............................................................................... 131
10.4.1 Define Transition Strategy....................................................... 131
10.4.2 Develop Contingency Plan...................................................... 131
10.4.3 Prepare Production Environment ............................................ 132
10.4.4 Set Up Applications................................................................. 133
10.4.5 Implement Production Support Infrastructure......................... 133
10.4.6 Verify Production Readiness ................................................... 134
10.4.7 Integrate Custom Components................................................ 135
Contents
xi
10.4.8 Data Migration....................................................................... 136
10.4.9 Begin Production................................................................... 136
10.4.10 Maintain System.................................................................... 137
10.5 Deliverables (Table 10.12).................................................................. 138
10.6 Decision Matrix/Checklist (Table 10.13)............................................ 138
10.7 Critical Success Factors ...................................................................... 138
11 Rollout......................................................................................................... 141
11.1 Objective ............................................................................................. 141
11.2 Business Flow Diagram (Fig. 11.1)..................................................... 142
11.3 Implementation Schedule: Rollout (Table 11.1) ................................. 142
11.4 Prerequisites........................................................................................ 142
11.5 Detailed Activities............................................................................... 143
11.5.1 Rollout Strategy (Table 11.2)................................................. 143
11.5.2 Analyze Site-Specific Requirement....................................... 143
11.5.3 Prepare Production Environment (Table 11.4) ...................... 144
11.5.4 Application Setup (Table 11.5).............................................. 144
11.5.5 Integrate Custom Components (Table 11.6).......................... 144
11.5.6 User Acceptance Testing (Table 11.7) ................................... 145
11.5.7 Data Migration (Table 11.8) .................................................. 145
11.5.8 Begin Production (Table 11.9)............................................... 145
11.5.9 Maintain System (Table 11.10).............................................. 145
11.6 Deliverables (Table 11.11)................................................................... 145
11.7 Decision Matrix/Checklist (Table 11.12) ............................................ 145
11.8 Critical Success Factors ...................................................................... 149
12 Project Management.................................................................................. 151
12.1 Objective ............................................................................................. 151
12.2 Project Management Life Cycle.......................................................... 152
12.2.1 Prerequisites .......................................................................... 152
12.2.2 Detailed Activities................................................................. 153
12.2.3 Risk Management: Broad Approach ..................................... 154
12.2.4 Issue/Problem Management: Broad Approach...................... 154
12.2.5 Change Control Management: Broad Approach ................... 154
12.2.6 Status Monitoring and Control: Broad Approach.................. 157
12.2.7 Problem Reporting and Escalation ........................................ 158
12.2.8 Project Completion................................................................ 159
12.2.9 Manage Acceptance Expectations Carefully ......................... 159
12.3 Deliverables......................................................................................... 160
12.4 Decision Matrix/Checklist .................................................................. 160
12.5 Critical Success Factors ...................................................................... 160
13 ERP in B School ......................................................................................... 161
13.1 Introduction......................................................................................... 161
13.2 Literature Review................................................................................ 161
13.3 Objective ............................................................................................. 163
Contents
xii
13.4 Methodology ....................................................................................... 163
13.5 Case Study XIMB............................................................................... 163
13.5.1 A Step Forward by XIMB...................................................... 164
13.6 Analysis............................................................................................... 165
13.7 Conclusion........................................................................................... 165
Further Reading............................................................................................ 166
Index.................................................................................................................. 169
Contents
1
Chapter 1
ERP as a Business Enabler
1.1 Introduction
In order to sustain and grow further, an organization must deal with all sales holders such as employees, stakeholders and the environment. The organization must
design an information system that would collect information as well as provide required information to all these stakeholders. Accordingly, business processes must
be organized in such a way that these processes use designed information systems
to operate efficiently and enhance the overall performance of the organization. The
business processes are organized in such a way that they provide value to their
stakeholders by prioritizing a strategy that would provide a faster and higher return
on investment (ROI). This prioritization ensures focus of these organizations in relation to their corporate objectives. Since resources are limited, efforts are prioritized
on certain business processes which would yield tremendous and faster benefits to
the stakeholders. To achieve this, information systems are designed across the entire
enterprise, which would help in providing information for tracking and monitoring
progress of different processes. These enterprise-wide applications (known as enterprise resource applications, ERPs) help in assisting in designing, integrating and
automating these prioritized information systems.
For example, raising an invoice for customers is a business process that involves
a set of activities. This set of activities is different in different organizations. Different activities in this business process can be collecting details of sales, looking
up the rate chart, arriving at the value of goods and printing an invoice. In some
organizations, these set of activities can be slow and inefficient, whereas in others
Learning Objectives
• To provide an understanding of enterprise systems and their impact on
business processes.
• To appreciate critical roles of enterprise resource planning (ERP) in automating business processes and meeting corporate objectives.
• How to integrate ERP with management information system (MIS).
K. Ganesh et al., Enterprise Resource Planning, Management for Professionals,
DOI 10.1007/978-3-319-05927-3_1, © Springer International Publishing Switzerland 2014
2 1 ERP as a Business Enabler
it can be fast and effective. One of the objectives of ERP is to design an efficient
information system by integrating and automating these set of activities to make it
faster and transparent. The degree of integration decides simultaneous publication
of the information with different stakeholders and helps improve the performance
of the organization. This also becomes the source of competitive strength and can
be the differentiating factor with respect to its competition. ERPs help organizations
to achieve this competitive advantage.
The ERP can be considered an integrated package of business processes. The
scope of the ERP determines the extent of automation of business processes. For
example, if the ERP covers human resource (HR) and finance business processes
only, then business process-related HR and finance are automated. Typically, business processes that are automated in HR and finance are employee entry and exit
processes, allocation of employee ID, payroll, processing, income tax planning,
actual deduction, etc. There is a seamless flow of employee data and information
available at an effectively faster rate to take appropriate decisions. Figure 1.1 shows
a typical framework for ERP application where HR and finance have focus.
1.2 Evolution of ERP
Integration of information systems started even before ERPs came into being. This
form of integration had limited focus; nevertheless, using information systems for
tracking and monitoring business processes were central to the existence in manufacturing organizations. Material requirement planning (MRP-I) was practiced in
the 1960s and 1970s by many manufacturing organizations. MRP-I was a software
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1.2 Evolution of ERP 3
which automated production planning and inventory control so that all the business
related to manufacturing was completed in a seamless manner. The objectives of
this system were as follows:
1. Required input materials are available for production.
2. Required products are made from input material and delivered to the customers.
3. Maintain an optional level of investors.
4. Schedule manufacturing activities to meet delivery schedules for the customer.
5. Schedule purchasing activities to meet manufacturing activities.
1.2.1 Scope for MRP-I
Manufacturing industries, in general, deal with invention management all the time.
The day-to-day problems lie with customers and suppliers. Customers want the
products to be available in a short time irrespective of the cycle time required for
producing them. The organization also needs to control both quantity and quality of
materials that they get from the suppliers; and these materials should be available
at the lowest possible cost. There could be a different combination of problems that
the organization would face:
• If quantities purchased were lower, it would lead to a stock-out situation for
customers.
• If the wrong quality or wrong input material is purchased, then the quality of the
final product will not match that required by the customer.
• If excessive quantities are purchased, it would lead to excess inventory; this
means funds are held up in the form of inventory leading to less inventory and
consequently less profit.
These kinds of problems are tackled by MRP-I; thus, MRP- I helps to solve problems like:
• What items are required?
• What is the quantity of each item?
• What is the time frame for availability of these items?
Problems with MRP-I
MRP-I was able to satisfy simple manufacturing business processes. In business
processes, where bought-in items and sub-assemblies were involved, the situation became complex. In these complex situations, a bill of material needs to be
handled effectively to take care of details of required materials, details of components and sub-assemblies to make each product. MRP-I was not able to handle
these complex situations effectively. The problems faced with MRP-I are listed
as follows:
4 1 ERP as a Business Enabler
1. In these bills of material, integrity of data creates a major problem. Any incorrect
input in bill of materials inventory data would result in incorrect manufacturing
scheduled. In the 1960s, MRP-I was often considered inappropriate, because of
incorrect inventory data.
2. Lead time taken to manufacture a product from its component parts needs to be
stated explicitly. Any wrong data in this respect will bring out a wrong schedule
for production. The assumption here is that in each manufacturing cycle, the lead
time remains constant. Thus, any change in external facts would change this lead
time and MRP-I was not able to handle these changes.
3. There were manufacturers who had factories at different locations. These locations could be at quite far-off places. For efficient manufacturing, material
needs to be transferred from one location to another depending on the cost factor involved in this transfer. MRP-I was not cost-effective in transferring goods
from one location to another.
4. Customization was also handled by MRP-I. This meant that dynamic changes
in the environment, including in customer needs, could not be handled by
MRP-I.
5. MRP-I also never considered the capacity available in the factory. Thus, utilization of capacity could not be factored in while using MRP-I for scheduling.
All these problems were dealt with in MRP-II.
1.2.2 MRP-II
MRP-II came as an improvement of MRP-I in the 1980s. This, as the name suggests, was an extension of MRP-I. Its scope covers manufacturing, scheduling,
operational planning and financial planning along with distribution management.
Unlike MRP-I, this was not a software alone, but a combination of planning skills,
data integrity skills and computing resources. Thus, it gave birth to the concept
of managing different departments simultaneously by effectively using resources.
Figure 1.2 shows how MRP-II is represented.
As Fig. 1.2 indicates, MRP-II integrates strategic planning, tactical planning,
shop from operation and market forecasting. For the first time, a concept was born
which took care of enterprise-level planning. Unlike MRP-I (which was a software
alone), MRP-II changed the perspective of planning and integration of different
departments.
Benefits of MRP-II
The integration of different aspects of an organization ensured that there was no
duplication of data, high data integrity and accuracy in forecasting using customer
feedback. The benefits from this integration can be summed up thus: