Measuring the Effectiveness of ERP systems Peter Seddon, PhD Senior Lecturer Department of Information Systems The University of Melbourne [email protected] http://www.dis.unimelb.edu.au/
Jan 26, 2015
Measuring the Effectiveness of ERP systems
Peter Seddon, PhD
Senior Lecturer
Department of Information Systems
The University of Melbourne
http://www.dis.unimelb.edu.au/staff/peter
Measuring the Effectiveness of ERP systems
Chinese version translated by
Bin Hu
Department of Information Systems
The University of Melbourne
3
Measuring the Effectiveness of ERP systems
1.An example calculation of ROI2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness5. Senior Managers: ERP
effectiveness6. Summary and Lessons
4
Measuring the Effectiveness of ERP systems
1.An example calculation of ROI2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness5. Senior Managers: ERP
effectiveness6. Summary and Lessons
5
1. Example calculation of ROI
Report sponsored by SAP Analysis of The Boston Beer Company’s
investment in an SAP R/3 system Implementation, January, 1996 Standard IRR calculation: ROI of 83%
Data from “The ROI Report”, Scalea and Company, 346 Beacon Street, Boston MA, August, 1997
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Boston Beer in 1997 Leading “craft” brewer in the US contract brewer - using excess
capacity of other brewers - plus one brewery in Cincinnati
380 employees: 190 in sales, 120 in brewing, and 70 in administration
1991-1996 net sales growth: 46% compound, from $30M to $191M
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Boston Beer’s SAP R/3 Modules
FI Financials
SD Sales and Distribution
AM Asset Management
MM Material Management
CO Controlling
PP Production Planning
PA Profit Analysis
BS Basis (middleware)
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The Investment, 1995-1996
Initial implementation & licence fees 700,000
ABAP Development and reporting 300,000
Further implementation and training 293,000
Hardware (2 x HP 9000) 462,000
Internal costs 88,000
Total $1,843,000
1995: $1,103,0001996: $ 740,000
$1,843,000(Consultant fees over 2 years: $1,043,000)
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Estimated Benefits, 1996-2000 Reduction in Gen. & Admin. Expense: 5% of $12.5m
= $300,000 p.a. (rising to $900,000 by year 2000) Interest Savings on A/R reduction: 6% of reduction of
$4m in Working Cap = $240,000 (rising to $500,000 by year 2000)
Improved Budget & Control of Sales Expenses: $300,000 (rising to $800,000 by year 2000)
Improved Control of POS Expenses: $240,000 Increased A/P Discounts: $100,000 p.a
Gains ($'000)
0
500
1000
1500
2000
2500
3000
1996 1997 1998 1999 2000Reduction in General and Administrative ExpenseInterest Savings on A/R reductionImproved Budget & Control of Sales ExpensesImproved Control of POS ExpensesIncreased A/P Discounts
740
1520
1990
23402540
Calculating ROI (=IRR), 1996?
Year 1995 1996 1997 1998 1999 2000
Cash in 740 1520 1990 2340 2540
Cash out -1103 -740
Net cashflow
-1103 0 1520 1990 2340 2540
IRR 83% =IRR(B4:G4,0.1)
Boston Beer Share Price 1996-99
Source: http://www.etrade.com, 27 Nov 1999
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Measuring ERP Effectiveness
Boston Beer’s sales fell 3% during 1996-98.
Most of the expected cost savings (which assumed sales growth) were not realized.
The expected ROI was not achieved.
Does this mean the investment in the ERP system was a failure?
How should we measure ERP effectiveness?
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Measuring the Effectiveness of ERP systems
1.An example calculation of ROI2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness5. Senior Managers: ERP
effectiveness6. Summary and Lessons
15
2. Why is measuring IT Effectiveness so hard? (not just for ERP systems) Often hard to link benefits to any specific IT investment
(e.g., benefits of a LAN). Cost savings are the easier to quantify, but these are not
the only benefits. There are many different goals for evaluation (e.g.,
feasibility, audit) Different stakeholders evaluate the same system
differently Evaluations change over time
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Willcocks and Lester list six types of goals for IT investment
Infrastructure building (can’t cost justify) Cost efficiency (e.g., Boston Beer) Service to the business (e.g., better
information, better decision-making) Enable business improvement (processes) Differentiating the business competitively Revenue generation
Willcocks and Lester, Beyond the IT Productivity Paradox Wiley 1999
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Five Key Questions to get clear about IT Effectiveness evaluation
Q1. From whose perspective is effectiveness being judged?
Q2. What is the system being evaluated?
Q3. What is the purpose of evaluation?
Q.4 What time frame is employed? (short, long)
Q.5 How is effectiveness to be judged?
Based on: Seddon, Staples, Patnayakuni, and Bowtell, Dimensions of IS Success, Communications of the AIS October 1999
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Q1. From whose perspective is effectiveness being judged?
independent stakeholder individual user a group of people project manager IT management owner/senior management society
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Q2. What is ‘the system’ being evaluated?
part of an information system (e.g., GUI) one particular system (e.g., the HR module) a type of system (e.g., ERP) all IT applications in an organization an inter-organizational information system an IT implementation process (e.g., ASAP) the IT function in an organization
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Q.3 What is the purpose of the evaluation?
Performance appraisal to learn how to do better feasibility-study evaluations in future expect different levels of cooperation from staff depending on
purpose of evaluation some evaluations may be much more comprehensive than others
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short term (e.g., “on time and within budget” for implementation projects)
long term
Q.4 What is the time frame is employed?
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Q.5 How is effectiveness of the IT system to be judged?
Compared to: some other organization (benchmarking) some ideal level of performance stated goals of the organization (e.g., the
feasibility study for an IT project) past performance of the organization other desirable characteristics
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Measuring the Effectiveness of ERP systems
1.An example calculation of ROI
2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness
5. Senior managers: ERP effectiveness
6. Summary and Lessons
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Firms evaluate effectiveness at 3 points in the system’s lifecycle
Perceived Organizational Performance
Implementation
Design
Continuous Improvement
Stabilisation TransformationTime
J.W. Ross, “The ERP revolution: Surviving versus Thriving,” Working Paper, CISR, MIT, 1998
Firms evaluate effectiveness at 3 points in the system’s lifecycle
Perceived Organizational Performance
Implementation
Design
Continuous Improvement
Stabilisation TransformationTime
J.W. Ross, “The ERP revolution: Surviving versus Thriving,” Working Paper, CISR, MIT, 1998
Feasibility Study
Firms evaluate effectiveness at 3 points in the system’s lifecycle
Perceived Organizational Performance
Implementation
Design
Continuous Improvement
Stabilisation TransformationTime
J.W. Ross, “The ERP revolution: Surviving versus Thriving,” Working Paper, CISR, MIT, 1998
Feasibility Study
Development Stage
Firms evaluate effectiveness at 3 points in the system’s lifecycle
Perceived Organizational Performance
Implementation
Design
Continuous Improvement
Stabilisation TransformationTime
J.W. Ross, “The ERP revolution: Surviving versus Thriving,” Working Paper, CISR, MIT, 1998
Feasibility Study
Development Stage
Post-implementation
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What percentage of firms evaluate their investments in IT?
(formal reviews; not just ERP)
Source: Seddon, Graeser, and Willcocks (1999): data from IT managers in 80 large European and US firms in 1998. Average annual turnover US$4.5B. Average annual IT budget was US$38 million.
IT Evaluation N %Feasibility 54 68%During IT development Project 55* 69%Post-implementation 40 50%
* 48 firms had abandoned some projects, 10% of projects
1. Feasibility Stage Evaluation problems(survey of 97 UK firms, Ballantine 1993)
Nature of evaluation problems for IS/IT projects Problem (%)Information requirements1. Quantifying relevant benefits2. Identification of relevant benefits3. Quantifying relevant opportunity costs4. Identification of relevant opportunity costs5. Identification of relevant costs6. Quantifying relevant costs
816536353127
Knowledge related7. Difficulty with interpretation of results8. Unfamiliarity with project evaluation techniques9. Calculation of discount rate
17123
Organizational problems10. Lack of time11. Lack of data/information12. Lack of interest13. Others
3719158
1. Feasibility Stage Evaluation Methods (80 respondents in US, UK, A & NZ, Bacon 1992)
Criteria% of companies
using the criterion(n=80)
Ranking byimportance
Financial CriteriaDiscounted Cash Flow (DCF)1. Net Present Value2. Internal Rate of Return3. Profitability IndexOther Financial4. Average/Accounting Rate of Return5. Payback Method6. Budgetary Constraint
49548
166168
4214
1058
Management Criteria7. Support Explicit Business Objectives8. Support Implicit Business Objectives9. Response to Competitive Systems10. Support Management Decision Making11. Probability of Achieving Benefits12. Legal/Government Requirements
886961884671
1367913
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2. Development-stage Evaluation
Perceived Organizational Performance
Implementation
Design
Continuous Improvement
Stabilisation TransformationTime
Development Stage
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2. Development-stage Evaluation
For project managers, the key success measure is often “on time and within budget”.
This has little to do with the economic value of the project.
Some projects are abandoned, which means the entire cost of the project is wasted.
Studying these abandoned projects gives insight into development-stage problems and evaluation
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2. Development-stage Evaluation(Willcocks and Lester 1996, n=50)
80% of the 50 organizations had abandoned projects because of negative development-stage evaluations.
The most important reasons for abandonment were: project over budget (17/50 respondents) organizational needs changed (23/50 respondents) user requirements changed (22/50 respondents).
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2. Development Stage Evaluation: Reasons for project abandonment
(Norris 1996)
Unacknowledged divisions between users on mandatory and desirable requirements and the scale of benefits expected from them.
Gung-ho attitudes to managing risks. An assumption that short training courses at the
launch of the system will be sufficient to change well-established working practices and to encourage users to adopt the system.
The above are consistent with findings on BPR.
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3. Post-implementation Evaluation
Perceived Organizational Performance
Implementation
Design
Continuous Improvement
Stabilisation TransformationTime
Post-implementation
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3. Criteria for Post-Implementation Review(Willcocks and Lester 1996, n=50)
83% comparison to the feasibility study 63% cost-effectiveness 53% quality of product 48% systems availability 44% productivity 22% user satisfaction
15% of organizations used the top six criteria, and a further 15% used the top five (excluding user satisfaction).
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Question:Of projects that are completed, provide the percentagesthat satisfy the following requirements. Percentagesshould add to 100:[ %] Exceed expected benefits[ %] Produce expected benefits[ %] Produce less than expected benefits[ %] Complete failure
3. Post-implementation Reviews
Source: Seddon, Graeser, and Willcocks (1999), n=80
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Question:Of projects that are completed, provide the percentagesthat satisfy the following requirements. Percentagesshould add to 100:[ 14 %] Exceed expected benefits[ 55 %] Produce expected benefits[ 26 %] Produce less than expected benefits[ 5 %] Complete failure
Source: Seddon, Graeser, and Willcocks (1999), n=80
3. Post-implementation Reviews
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The remainder of this presentation focuses on post-implementation benefits only, i.e., on benefits from use, once the system is operational.
3. Post-implementation Reviews
40
Measuring the Effectiveness of ERP systems
1.An example calculation of ROI2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness5. Senior Managers: ERP
effectiveness6. Summary and Lessons
4. A model of factors affecting individual perceptions of IS effectiveness (n=119;266)
Information Quality
Ease ofUse
Perceived Usefulness
Perceived Net Benefit
Importance of the task
Knowledge of the system
Support Staff
0.4
0.3
0.2
0.3
0.2
0.2
0.5
0.1
ns
ns
0.2
Comparing scores on Old and New Systems (September, 1996 and January, 1998. All scales: 1…7)
Dataset 1 (n=70) Dataset 2 (n=130)
MeanStandardDeviation Mean
StandardDeviation
Dataset 2 –Dataset 1
System needs replacing 6.28 1.39
Task is important to me 5.79 1.11 6.05 0.94 0.26
Knowledge of system 5.43 0.98 5.35 1.00 -0.08
Ease of use 3.90 1.28 5.46 1.05 1.56 ***
Information quality 4.09 1.07 4.98 0.99 0.89 ***
Support staff helpful 4.31 1.03 4.56 1.00 0.25
System is useful 4.52 1.37 5.35 1.15 0.83 ***
Perceived net benefit 3.96 1.23 5.53 1.03 1.57 ***
Source: Seddon and Staples (1999)
43
Measuring the Effectiveness of ERP systems
1.An example calculation of ROI2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness5. Senior Managers: ERP
effectiveness6. Summary and Lessons
44
Why are senior managers interested in ERP effectiveness?
To improve IT investment decision-making in future To learn from reported experience of others to understand capabilities of ERP systems and so tap possible
sources of competitive advantage to identify areas to target for future development
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Answers to the five key questions for evaluating IT effectiveness
Stakeholder: senior management System: the entire ERP system Purpose of evaluation: previous slide Time frame: costs and benefits to date, plus costs and benefits for the next 2-
3 years (including software and hardware upgrade costs) Effectiveness criteria: Balanced IT Scorecard
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Balanced IT Scorecard criteria
1. From the corporate financial perspective, e.g., ROI
2. The customer/user perspective (e.g., on-time delivery rate, satisfaction)
3. Business process (e.g., purchase invoices per employee)
4. An innovation/learning perspective (e.g., rate of cost reduction for IT services)
5. From the systems project perspective (e.g., on-time, quality, cost)
6. A technical perspective (e.g., implementation efficiency, capacity utilization, response times)
Source: Graeser and Willcocks (1998)
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Norris says for post-implementation evaluation of IT effectiveness, create a task force:
Different stakeholder interests must be represented
Task force must have:– Authority vested from the top– Board-level access– Company-wide emphasis– Business management insight.
Source: Norris (1996)
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Benefits checklist: Analysis of vendor success stories on WWW (Shang, PhD in progress, 1999)
ERPvendor
Casespublished
Casesselected
Case scope
SAP 256 51 19 industries45 countries.
Peoplesoft 90 65 11 industries,10 countries
Oracle 124 68 No industryclassification,6 countries
Total 470 182
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Content analysis of the 182 WWW cases suggests that, from the perspective of senior management, there are five categories of benefits from ERP systems (Shang 1999):
1. Operational
2. Management
3. Strategic
4. IT infrastructure
5. Organizational
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1.Operational benefits (Shang 1999)
Cost reduction: labour, training, inventory Cycle-time reduction:
– faster delivery to customer, – faster administrative processes
Increased productivity Improved data quality Improved customer service
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Better resource management: inventory, maintenance, production scheduling, workforce management
Better decision making: improved market responsiveness, fast response to work changes, fast response to customer needs
Better control: analysis by line of business, product, customer, geographic area; production costs management
2.Managerial benefits (Shang 1999)
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Support for future business growth Support for business alliances “Lock-in” customers (realtime data sharing,
interactive customer service) build business innovation build cost leadership enhance product differentiation sustain competitiveness
3.Strategic benefits (Shang 1999)
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Increased business flexibility reduction in IT costs: legacy systems
maintenance, mainframe replacement, year 2000 compliance
increased infrastructure capability: global platform, database integrity
flexibility: adaptable modern technology, extendable, compatible
4.Infrastructure benefits (Shang1999)
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Support organizational changes (restructuring)
business and employee skills learning greater customer focus for staff empowerment and accountability teamwork better employee morale and satisfaction
5.Organizational benefits (Shang1999)
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Vendor success stories do not mention the problems of ERP system use such as:
Dependence on vendor upgrades Poor response times Inflexibility/Expensive customization Staff leaving for better salaries others
Downsides of ERP systems
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Persuade a number of user organizations to use a combination of the IT Scorecard and the ERP Benefits Checklist to assess the effectiveness of their current systems.
Will also ask them to identify downsides (unwanted consequences) of ERP systems.
Hope to identify some common factors that led to greater perceived success.
Expect user knowledge to be a key determinant of success.
Plan (for next year)
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Measuring the Effectiveness of ERP systems
1.An example calculation of ROI2.Why is measuring IT Effectiveness so hard?3.What do we know about IT
Effectiveness measurement in practice?
4.Individuals: IT effectiveness5. Senior Managers: ERP
effectiveness6. Summary and Lessons
58
6. Summary and Lessons IS effectiveness measurement is difficult because there is no
simple causal relationship between IT expenditure and benefits. Financial measures such as Boston Beer’s ROI, and changes in
corporate profitability, are clearly invalid in some circumstances. The previous section contains our best recipe for ERP
effectiveness measurement from the senior management perspective:
Taskforce + scorecard + checklist.
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Finally:
“Establishing value for money depends on the business judgement of the managers involved - it is no more amenable to numerical analysis than any other value judgement.” (Norris 1996)
Source: Norris, G.D. Post-investment appraisal, in Willcocks L. Investing in Information Systems, London: Chapman and Hall, 1996: 193-221.
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Questions?
Peter Seddon and Bin Hu
Department of Information Systems
The University of Melbourne
http://www.dis.unimelb.edu.au/staff/peter