A structured evaluation of business process improvement approaches Gregor Zellner

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A structured evaluation Evaluation of

BPI approaches

of business process improvement approaches

Gregor Zellner

Department of Management Information Systems, University of Regensburg, Regensburg, Germany

Abstract Purpose – The purpose of this paper is to provide a structured overview of so-called business

process improvement (BPI) approaches and their contribution to the actual act of improving. Even though a lot is said about BPI, there is still a lack of supporting the act of improving the process. Most approaches concentrate on what needs to be done before and after the improvement act, but the act of improving itself still seems to be a black box. Design/methodology/approach – This paper is mainly based on a review of literature that deals with the term “Business Process Improvement”. The analysis of the literature is supported by qualitative content analysis. The structure of the evaluation follows the mandatory elements of a method (MEM).

Findings – A lot of literature and consulting approaches deal with the restructuring and improvement of business processes. The author finds that even so-called BPI approaches do not describe the act of improvement itself. And if they do, they lack a methodological structure that can be reused.

Research limitations/implications – To constrain the complexity of this research at this first stage of investigation only the search criterion “business process improvement” was used in the database search (EBSCO and Emerald).

Originality/value – The paper is valuable for academics and practitioners because the impact of BPI on organizational performance is high. Its originality is in the structured evaluation of so-called BPI approaches according to the MEM, which so far no one has investigated.

Keywords Process improvement, Process management Paper type Literature review

1. Introduction Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT)

1.1 The background Business process improvement[1] (BPI) is an ongoing issue for companies nowadays. Companies use BPI to keep pace with the changing business environment which means adapting their business processes to persistent technological, organizational, political and other changes (Davenport and Perez-Guardado, 1999; Coskun et al., 2008). So, it is not surprising that improving business processes was “number one priority” among the top ten business priorities in 2009 in a Gartner survey covering more than 1,526 CIOs (Auringer, 2009). And as the demand for improving business processes increased after the business process reengineering (BPR) wave in the early 1990s (Hammer, 1990;

Business Process Management

Hammer and Champy, 1993; Davenport, 1993), methodologies, techniques, and tools

Journal

were developed for conducting BPR projects (see Shin and Jemella (2002) according to Vol. 17 No. 2, 2011

q pp. 203-237

Kettinger et al. (1997)). Thus, it is not amazing that BPI issues “[...] are within the most Emerald Group Publishing Limited 1463-7154 important and common titles in both literature and applications” (Coskun et al., 2008)

DOI 10.1108/14637151111122329

BPMJ

and that process improvement becomes an everyday task and a part of processes’

lifecycle (Doomun and Jungum, 2008).

1.2 The problem But even though “[...] there have been many attempts to establish a business process redesign framework, there is little work on the actual optimization of business processes

with given objectives” (Vergidis et al., 2006). In literature, it is widely agreed, that the most value-adding phase in a business process management (BPM) project namely the act of improving lacks guidelines and is only poorly supported (Vergidis et al., 2006; Forster, 2006; Garnter Inc., 2005; Reijers and Mansar, 2005; Sharp and McDermott, 2001; Valiris and Glykas, 1999; Gerrits, 1994). Owing to that fact BPI seems to be rather art than science (Davenport, 2005; Hall and Johnson, 2009). Sharp and McDermott (2001) compare the mysterious step from the as-is to the to-be with the famous And Then,

A Miracle Occurs procedure. Comparing the act of improving with a black box seems to

be adequate here. The problem is that so far no one has investigated how the improvement procedure can be supported or executed methodologically to reduce uncertainty on the way from the as-is to the to-be.

1.3 The proposed solution To avoid to get lost in the “improvement black box” it would be useful to have directions and rules that support the act of process improvement. A method can be a meaningful solution to provide this demanded support, because it is a goal-oriented systematic approach, which helps to resolve theoretical and practical tasks (Braun et al., 2005).

A long-term solution for solving the above stated problem would be to create a method that supports the act of improvement. It is one step before this research takes place: giving an overview of existing approaches and their contribution or lacks to guide the act of improvement. Hence, the aim of the paper is to evaluate selected process improvement approaches in a structured overview in order to identify their potential to methodically support the act of improving business processes. Therefore, a literature review is performed. The degree of methodically support will be measured against the mandatory elements of a method (MEM) (Section 2.2). The importance of these elements for the support of the improvement act is described in Section 2.3.

The main research question therefore is: RQ1. In what extend do existing approaches support the act of improving in a

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structured way like a method does? To answer this RQ1 the remainder of this paper is organized as follows: Section 2

provides a basis for the conceptual part of this research and deals with the MEM and explains why they can help structuring the improvement act. Section 3 is dedicated to related work that concentrates on structured comparisons of BPI approaches. In Section

4, the research design is presented and the data collection and evaluation for this research is described. The Appendix gives a detailed overview of the selection process for the approaches that are evaluated according to the MEM in Section 5. In Section 6,

a summary is given and a conclusion is drawn.

The contribution of this paper to current BPI lies in the following aspects:

giving a structured overview of selected approaches that deal with improving processes; giving a structured overview of selected approaches that deal with improving processes;

Evaluation of

processes which many authors talk about (Section 1); and

BPI approaches

identifying starting points for developing existing improvement approaches or creating a best of breed methodology.

2. Conceptual basis

2.1 Business process improvement

BPI is an approach to increase the effectiveness and efficiency of business processes that provide output to internal and external customers (Harrington, 1991). Since BPR became

a part of the mainstream of business improvement (Baines, 1996), many different terms in literature were related to the improvement of business processes (Zairi and Sinclair, 1995). Examples are: “business process improvement (BPI)” (Harrington, 1991), “business process redesign” (Davenport and Short, 1990; Carr, 1993), “business (process) re-engineering (BPR)” (Hammer, 1990), “core process redesign” (Kaplan and Murdock, 1991; Heygate, 1993; Hagel III, 1993), “business restructuring” (Tanswell, 1993; Talwar, 1993), “continuous improvement process” (Imai, 1986; Juran, 1991; Juran and Gryna, 1993; Deming, 1986, 2000) and “Six Sigma” as a methodology (Pande et al., 2000; Breyfogle, 2003; Harry and Schroeder, 2006). Depending on the degree of improvement (radical or incremental) the two areas BPR and BPI can be distinguished, whereas re-engineering (BPR) is synonymous to radical improvement (Hammer, 1990; Hammer and Champy, 1993) and process improvement (BPI) to incremental improvement (Harrington, 1991; Coskun et al., 2008). Both areas can be seen as a subset of redesign (Valiris and Glykas, 1999).

Shin and Jemella (2002) add another degree of improvement called “quick hits”, which focuses on the immediate payback through process improvement within a few months, whereas BPR and BPI focus on the long run. And even, if the philosophy and procedure of the above-mentioned approaches are different they all have one goal: the redesign (radical or incremental), respectively, improvement of business processes.

In the context of this paper, the distinction between re-engineering as a synonym to radical improvement and process improvement as a synonym to incremental improvement is not the focus of the analysis. The focus is on how redesign approaches and especially so-called BPI approaches methodically support the act of improvement. How do they guide the user to improve a business process from the as-is to the to-be?

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2.2 Mandatory elements of a method As mentioned above, a method is goal oriented and provides a systematic approach. That means that a method specifies how to achieve defined goals (e.g. with the help of rules) and offers a systematic structure which enables the creation of work steps (e.g. activities) to achieve these goals (Braun et al., 2005).

A fundamental contribution to define the term “method” is provided by method engineering. This discipline is about the design, construction, and adaption of methods, techniques and tools for developing information systems (Brinkkemper, 1996; Tolvanen, 1996). In this field of method engineering a method is considered to be:

[ . . . ] an approach to perform a systems development project, based on a specific way of thinking, consisting of directions and rules, structured in a systematic way in development activities with corresponding development products (Brinkkemper, 1996).

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A technique is a procedure, that performs a development activity and possibly uses a

prescribed notation (Brinkkemper, 1996). For that reason a technique is an essential part of the method, which specifies the accomplishment of development activities. Techniques can be supported by tools, which are the means for creating the results (Baumo¨l, 2005).

Since directions and rules as well as structured developing activities are useful for the act of improving business processes too, a method seems to be a valuable support.

A method embodies a set of concepts that determine what is perceived (“technique”),

a set of linguistic conventions and rules which govern how the perception is presented and communicated (“information model” or meta model) and a set of procedural guidelines (“activities”) which state in what order and how representations are derived (“procedure model”) (Smolander et al., 1991; Brinkkemper, 2000; Tolvanen, 1996). To specify a method, it additionally needs a description of participating “roles” and the specification of resulting documents (“results”). Roles and procedure model are related to each other. If there is no procedure model provided by a method, the definition of roles for the development process would not make any sense. To summarize, a method consists of the following five mandatory elements (Alt et al., 2001; Baumo¨l, 2005; Braun et al., 2005; Winter and Schelp, 2006; Leist and Zellner, 2006):

(1) Procedure model: order of activities to be fulfilled when employing the method. (2) Technique: way of generating results; supports an activity. (3) Results: an artifact (e.g. a document, etc.) created by an activity. (4) Role: the one who carries out the activity and is responsible for it. (5) Information model: consists of the above-described elements and their

relationships. Information models are also used to represent the results. In order to provide a systematic approach for improving business processes, a

specification to every mentioned element should be demanded.

2.3 How the MEM can support the act of process improvement

A systematic approach like a method should embody all MEM at the best. But, how can each of these elements be helpful to support the act of improving a business process? As mentioned above, the act of improving business processes often is unstructured. Therefore, guidelines and rules or in other words an exactly defined “procedure model” consisting of clearly defined steps (“activities”) can reduce the uncertainty of this act.

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) Because knowing what to do step by step in an improvement project helps not to ignore important aspects by mistake. The “activities” help those who are involved in a BPI project to understand which tasks have to be performed and in which order. The activities create or use “results” that are needed to go on with the next step within the improvement procedure. Knowing, what results need to be used or produced, instructions for their creation are helpful during the execution of an activity. These instructions are called “techniques” in case of a method. During the act of improving, it is not only of importance to be aware, what has to be done in which order, but also who is responsible for a certain activity. To know this a “role” model helps to identify the process owner and guarantees a smooth course of the improvement act. As the act of improving is a continuous task it should be assured that the results of the activities are reproducible for any following improvement project. Therefore, it would be helpful to have a “blueprint” of the results, which describes its parts and their relationships. The “information model”

(or often called “meta model”) is a helpful means to support this need. Finally, the presence

Evaluation of of all elements can be very supportive for the act of BPI. Unfortunately, there still is a lack BPI approaches

of methodologies in the field of process improvement. According to Pakdil et al. (2009),

a search in Science Direct academic electronic database for process improvement-related studies between 1998 and 2006 provided 123 results, and none of them proposed a methodology.

3. Related work As the aim of the paper is to give a structured overview (according to the MEM) of so-called BPI approaches to analyze their methodological support for the act of improvement, related work that deals with structured overviews of improvement approaches needs to be provided. Therefore, the requirements for this related work section are that research is presented that gives a structured overview of methods, techniques or procedures for improving business processes with focus on the act of improving. So, literature that deals with a study, survey, review, overview or classification of improvement approaches is presented in Table I (extended by approaches that are not described in detail in this section). As the focus is not on radical or incremental change, but on the act of improvement itself, redesign approaches (BPR and BPI) are examined in this related work section. Later on (Sections 4 and 5) the focus of the work will only be on so-called BPI approaches as a subset of redesign approaches.

In the following, related work is presented that gives a structured overview of methods, techniques or procedures to redesign business processes to highlight the lack of current research.

Kettinger et al. (1997) provide a comprehensive survey of methodologies, techniques and tools for so-called “business process change”. The authors derive a six-stage BPR project framework consisting of the stages “envision”, “initiate”, “diagnose”, “redesign”, “reconstruct” and “evaluate”. These stages are used to give a structured overview of

25 BPR methodologies, 72 BPR techniques and 102 BPR tools. But the focus of their research is on the overview of methodologies, techniques and tools according to their six-stage framework and not on the act of improving (“redesign”-stage) itself. Within their “redesign”-stage the authors describe which techniques can be used to redesign a process (e.g. brainstorming and creativity techniques), but no further details concerning the act of improving are provided.

In a critical review of existing BPR methodologies, Valiris and Glykas (1999) present Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT)

their own BPR methodology called agent relationship morphism analysis, which is a combination of different categories of BPR methodologies: IS-, accounting- and organization-theory-based methodologies. These categories represent the criteria for their overview of existing work in the area of BPR. As the authors present methodologies that they consider as “GLOBAL”, the focus is on redesigning the organization as a whole with all of its different aspects but not on BPI especially.

Hagemeyer et al. (2006) propose a classification scheme for problem-solving quality tools and techniques (e.g. cause and effect, design of experiments, control plan). It consists of ten criteria: the phases of the Six Sigma cycle (define, measure, analyze, improve and control (DMAIC)), type of tool, skill of user, what is needed to for tool use, quality tools needed prior to using this tool, what the tool works with, tool function, tool classification, physical outcome and what the tool does with the information. This classification scheme represents a structured methodology for the selection of quality

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Related Table

208 17,2 BPMJ

work I.

Focus on

act of Approach Author(s)

Structured

Structuring Criteria improving Business

Components of business process No process

Reijers and Mansar

“Best practices in business process Best practice in

Yes

redesign framework (e.g. customers, redesign

(2005) and Mansar and redesign: an overview and

business process

Reijers, 2007)

qualitative evaluation of successful redesign

business process operation,

redesign heuristics” and “Best

organization, information, etc.)

practices in business process redesign: use and impact”

Quality Hagemeyer et al.

Ten selection criteria (e.g. phases of No tools

“Classification and application of

Problem-solving quality Yes

problem solving quality tools: a

tools and techniques

Six Sigma cycle, type of tool, skill of

manufacturing case study”

user, etc.)

BPI Siha and Saad (2008)

“Business process improvement:

Current process

Yes

Four categories: Six Sigma, No

empirical assessment and

improvement

benchmarking, BPR, process

BPR Kettinger et al. (1997) “Business process change: a study of BPR methodologies,

Yes

Six-stage BPR project framework No

methodologies, techniques, and

techniques and tools

(stages: “envision”, “initiate”,

tools”

“diagnose”, “redesign”, “reconstruct” and “evaluate”)

BPR Valiris and Glykas

IS-, accounting- and organization- No (1999)

“Critical review of existing BPR

“Global” BPR

Yes

theory-based methodologies BPR

methodologies”

methodologies

Vakola and Rezgui

Stages of the methodologies No (2000)

“Critique of existing business

Critical overview of

Partly

process re-engineering

existing BPR

methodologies: the development and methodologies and implementation of a new

models

methodology”

BPR Al-Mashari and Zairi “Revisiting BPR: a holistic review of Holistic review of

Stages of the methodologies No (2000)

Partly

practice and development”

literature related to BPR

BPR Zairi and Sinclair

No (1995)

“Business process re-engineering

Survey of current

No

None

and process management – a

practice and future

survey of current practice and future trends in BPR trends in integrated management”

BPR Al-Mashari et al.

No (2001)

“Business process reengineering: a

Survey of international No

None

survey of international experience” experience on

implementation of BPR implementation of BPR

Evaluation of of 20 selected quality tools were described according to these ten criteria. Hagemeyer et al. BPI approaches

(2006) present a structured overview of quality tools and techniques but do not focus on the improvement phase or the act of improving a business process.

Knowing that the literature presented in this section is just an excerpt that deals with business process redesign approaches, only a few articles provide a structured overview of methods or techniques, and to the best of our knowledge there are no approaches that

give a structured overview of how to support the improvement act in a holistic way like a method including its mandatory elements does. Another result is that none of the structuring criteria in Table I describes the approaches according to the MEM, so none of them analyzes the methodological character of an approach. And as Berente et al. (2009) mention, most of the literature on BPI focuses on the role of information and information systems.

The aim of this paper is therefore to provide a first structured overview of so-called BPI literature (as a subset of business process redesign) and evaluate the findings according to the MEM. The comparison should help to understand how comprehensive the act of improving business processes is supported by now and to identify the lacks that should be erased by further research.

4. Research design To answer the RQ1, the research methodology “review” according to Cooper and Hedges (1994) is used. A literature review is an information analysis that summarizes the substance of literature and draws conclusions from it (ERIC, 1982). It uses reports of primary (or original) scholarship (e.g. empirical, theoretical, critical, analytical or methodological) and seeks to describe, summarize, evaluate, clarify or integrate the content of these reports (Cooper, 1988). According to Cooper and Hedges (1994), a literature review consists of five stages:

(1) Problem formulation. The RQ1, the review is used for answering is presented at this stage (Section 1 of this paper).

(2) Data collection. At this stage, literature is gathered that corresponds to the problem the RQ1 examines (Section 4.1).

(3) Data evaluation. The identified literature has to be proven as relevant for answering the RQ1 (Section 4.2). In this stage, the literature has to be checked

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) individually. (4) Analysis and interpretation. During this stage, the results of stage three (data

evaluation) need to be proven according to the problem formulation of stage one (problem formulation). The evaluation (Section 5) in this case is based on the MEM (Section 2).

(5) Public presentation. The results of the review must be presented to the public. This is done in this research.

The phases “Data Evaluation” and “Analysis and Interpretation” are supported by “qualitative content analysis” according to Mayring (2000). This analysis method provides a structured procedure to summarize the text information according to the goals of the investigation. It is a research method that delivers repeatable and valid conclusions from the data (in this case literature) according to a certain context

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(here: RQ1) (Krippendorff, 2004). The aim of “qualitative content analysis” is to reduce

the information material to be able to focus on the important parts that are necessary for conducting the research. Mayring (2000) offers two procedures to reduce the information material: “deductive category application” and “inductive category application”. Deductive category application means, that the categories used for abstracting and reducing the text information are known before the investigation or

are developed during the investigation in case of inductive category application. In both cases, the text information is scanned line by line to find those sections or phrases, which fit in a certain category. This paper follows the deductive category application, because the categories represented by the MEM are known before the analysis.

4.1 Data collection To be independent from certain journals, the data for the literature research were gathered from the EBSCO-host database (here: “Business Source Premier”) and Emerald. These data bases were selected due to their being widely known and their providing access to many electronic sources.

Being aware that a complete overview of methods and approaches that deal with the improvement of business processes would be an overconfident project, the focus of this work is on research that deals with “business process improvement” as a subset of business process redesign. This limitation was necessary because in literature many different terms are related to process improvement (Zairi and Sinclair, 1995 and Section 2.1). For example, there were 371 results for “BPR” in EBSCO and 441 in Emerald and even 1,050 results for “process improvement” in EBSCO and 237 in Emerald[2]. Table II shows the search parameters used for this research. As mentioned, the search words were limited to “business process improvement” and the search mode was “phrase”. That was necessary because just looking up any of the search words does not lead to reasonable results, as the term “business” for example exists in a lot of literature. An EBSCO search for this case generated 1,383,437 results. Searching for the term “business process improvement” (as a phrase) in title or abstract or keywords was meant to be sufficient, because if the term “business process improvement” would not appear in title, abstract or keywords it can be assumed, that even if mentioned in the text, the focus of the paper would not be on “business process improvement” predominantly. Searching for the abbreviation “BPI” was misleading, because in some literature this abbreviation meant something different, like for example “Banco BPI (Banco Portugueˆs de

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) Investimento)” or “Building Performance Institute (BPI)”. Another limitation was to constrain the search for academic journals and articles only. That limitation is reasonable,

Date of

Database Search word(s)

Search mode Searching in

Limitation Results search

Emerald “Business process Phrase

Title OR abstract Journals 35 March

OR keywords

Academic 57 27, 2010

phrase

journal, article S

92 Duplicates

10 Table II.

Number of 82 Data collection

articles articles

Evaluation of (e.g. all Emerald research journals are peer-reviewed). The search in Emerald led to 35 and BPI approaches

in EBSCO to 57 results, where ten results were double. At the end 82 articles had to be checked. Table II gives an overview of the data collection for this research.

As mentioned, to constrain the complexity of this research at this first stage of investigation only the search criterion “business process improvement” was used in the database search. Other search criteria were not investigated by now. This is led to

further research.

4.2 Data evaluation Step three within the five-stage methodology review is the data evaluation. The identified literature has to be proven as relevant for answering the RQ1 (Section 1). Relevant in this case was literature that dealt with kind of a structured way of improving business process, as for example procedures, guidelines, techniques or methods for improving business processes. To select the relevant articles, two raters (observers) read the abstract with respect to details about the act of improving business processes. If it was not really obvious from the abstract, the paper was read completely to make a sound decision about the selection. The use of multiple raters was necessary because in content analysis, people (observers) are employed to systematically interpret the units of analysis (e.g. text), but “when relying on human observers, researchers must worry about the quality of the data – specifically, their reliability” (Hayes and Krippendorff, 2007). To accomplish reliability the observers need to agree on the data they generate (Hayes and Krippendorff, 2007). In the presented research this was done by two researchers. In this way inter-rater agreement can be achieved, where the ratings of one observer are interchangeable with the ratings of another (Brutus et al., 1998).

Articles which, nonetheless, did not contain any explicit statement on how to improve business processes (in the eyes of both observers), were not selected for the evaluation. Eventually, 14 out of the 82 contributions were identified for further evaluation amongst the MEM (Table III). The selection process and the results are presented in Table A1 in the Appendix.

5. Analysis and interpretation of the structured evaluation of selected BPI approaches Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT)

Step four within the research methodology review is the analysis and interpretation of the data evaluated in Section 4.2. Those articles that dealt with approaches to support or describe the act of improving business processes (see the Appendix) were analyzed with the help of “qualitative content analysis” according to the MEM. MEM as a mode of analysis helps to identify quickly if an approach is methodological supported or not. The more MEM can be aligned, the better the methodological procedure is supported to improve business processes. Hence, the MEM is criteria for measuring the quality of the selected approaches concerning their ability to completely support the act of improvement. To do so it is not sufficient to have a procedure (or guidelines) consisting of “activities”, it is also important to have an explicit “role” allocation and a detailed knowledge about how to perform the activities to gain process improvement, which can

be supported by “techniques”. A clear definition of the “results” (as input and output of the activities) is another helpful mean to ease the act of improving business processes.

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approaches process Structured Table

212 17,2 BPMJ

improvement III. evaluation

of

Mandatory elements of a method Information Author(s)

Activities Techniques Role Results model Harrington (1991) and Harrington (1995a)

Approach

( WW Pande et al. (2000), Breyfogle (2003) and

BPI

( ( W Harry and Schroeder (2006)

Six Sigma

Dalmaris et al. (2007)

Framework for the improvement of

WWW

knowledge-intensive business processes

Rohleder and Silver (1997)

WWW Coskun et al. (2008)

A tutorial on BPI

WWW Lee and Chuah (2001)

WABPI methodology

( WW McAdam (1996)

A SUPER methodology for BPI

An integrated business improvement

( WW

methodology

Siha and Saad (2008)

WWW Khan et al. (2007)

SAM framework for BPI

( WW Adesola and Baines (2005)

BPI framework

WWW Povey (1998)

MIPI methodology

( WW Varghese (2004)

Best practice BPI methodology

WWW Seethamraju and Marjanovic (2009)

Strategy for launching meaningful BPI

Process knowledge in business process

WWW

improvement methodology

McAdam and McIntyre (1997)

BPI methodology with focus on learning

WWW

organization concepts

Paper (1998)

Holistic framework for BPI adopted at

( WW

Caterpillar Inc.

Bisson and Folk (2000)

WWW Notes: †, fully accomplished or mentioned; (, partly accomplished or implicitly mentioned; W, not accomplished or not mentioned

Case study for BPI

The existence of an “information model” gives a good overview of how the relations

Evaluation of

between and within the results are.

BPI approaches

5.1 Analysis of the selected approches In the following for each of the 14 selected approaches, the evaluation is described in detail regarding the MEM. Each approach was read by two researchers and the evaluation regarding the MEM was done with the help of a gradual scale (see notes to

Table III). Additionally to these 14 approaches, Harrington’s (1991) Business Process Improvement – The Breakthrough Strategy for Total Quality, Productivity and Competiveness as a standard in this field and the Six Sigma method (Pande et al., 2000) as

a popular and widespread process improvement approach were analyzed. Table III gives an overview of the results of the analysis. The basic work of BPI was published by Harrington (1991). Harrington (1991) introduces a five-phase procedure for BPI and describes the act of improving in phase III “streamlining” of his approach (Harrington, 1991). “Streamlining” consists of

12 cornerstone tools that should be performed to improve a process and create positive change in effectiveness, efficiency and adaptability. Harrington suggests to apply these tools (e.g. “bureaucracy elimination”, “duplication elimination”, “simplification”, etc.) in a certain order which conforms in comparison to the MEM with the “procedure model”. The tools are equal to “activities”. For some activities kind of “techniques” like “asking key questions” (this could be, e.g. the Five WHYs technique) during the activity “bureaucracy elimination” can be identified, but not for all

12 activities. According to Harrington (1991), the aim of this activity is to evaluate and minimize all delays, documentation, reviews and approvals. The desired “results” could

be a document like a list of delays, but no further details concerning the results are given for any activity or technique. Also no “information models” are suggested to assure reproducible results. Harrington (1991) gives no detailed description about “roles” that are responsible for certain activities, but allocates all activities within the act of improving to a so-called process improvement team (PIT).

Six Sigma (Pande et al., 2000; Breyfogle, 2003; Harry and Schroeder, 2006) as a statistically oriented method of process improvement consists of five phases, which are known as the DMAIC cycle. The improve-phase deals explicitly with the act of improving. During this phase “activities” (such as elaboration of possible solutions, evaluation and selection of solutions, development of measures for implementing the

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) solutions, starting pilot programs ( John et al., 2008)) help to conduct the desired outcome (generate and select improvement solutions and estimate the potential benefits) of this phase. To support the generation of the output within the improve-phase, the Six Sigma methodology suggests a bulk of “techniques” (e.g. creativity techniques (brainstorming, affinity diagram, etc.), 5S, poka yoke, theory of constraints, etc.). The “results” produced during an activity are seldom explained explicitly, especially when the results are not of conceptual nature (e.g. 5S, poka yoke). In the center of interest is the application of techniques. “Information models” for the results are not suggested. An overall “role” model (so-called “belt system”) defines the roles to be taken during a Six Sigma improvement project. An explicit role model for the improvement-phase is not proposed.

Dalmaris et al. (2007) present a framework for the improvement of knowledge-intensive business processes (knowledge-intensive business processes improvement). The framework focuses on the application of knowledge management

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to support the improvement of business processes. Therefore, the “knowledge-intensive

business process improvement methodology” is introduced, which is designed to provide guidance through the act of improving. Compared to the MEM some similarities can be found. The guidance is assured by a “procedure model” consisting of the three “activities” “process audit” (collection of data), “process analysis” (evaluation of potential improvement areas) and “solution design” (creation of a new process instance).

Even though the activities of this procedure model are described in detail, neither “techniques” that could support the activities nor “roles” that should execute the activities are mentioned. The authors also do not mention which input (needed “results”) is needed to perform an activity and what output (produced “results”) is created in each step of the procedure model. An equivalent to the “information model” cannot be found.

Rohleder and Silver (1997) describe process improvement framework that consists of

13 steps. Step 12 “Process innovation” deals with deriving innovation and reengineering the process to create the “ideal” process (Rohleder and Silver, 1997). Even though a procedure model for the whole framework is presented, there is no procedure model for the improvement act (step 12). The authors describe what should be done in this step, but do not explicitly name “activities”. The activities can only be derived implicitly (e.g. change the order of activities, model off-line, etc.). Nevertheless, the authors present “techniques” (e.g. brainstorming, creativity techniques, simulation, what-if-analysis, etc.) that help to support the act of improving. “Results, roles” and “information models” are not described or mentioned.

The weak points analysis for business process and improvement (WABPI) methodology presented by Coskun et al. (2008) consists of four phases (start-up, self-analysis, making changes and feed back) that consist of different steps. The step “improving weak points” within the phase “making changes” deals with the act of BPI. But this step is not further detailed by “activities”. The authors write about the importance of the right selection of “techniques” to be used in a process improvement methodology (Coskun et al., 2008), but do not present any techniques in their research. Also no “roles”, “results” and “information model” are mentioned, neither explicitly nor implicitly.

Lee and Chuah (2001) demonstrate a SUPER methodology for BPI that incorporates the characteristics of three BPI approaches (continuous process improvement (CPI), BPR and business process benchmarking (BPB)). The SUPER methodology consists of five phases whereas phase four “execute the process improvement” deals with the actual improvement actions. In this phase, there are four “activities” arranged in a certain order

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) (procedure model). To support the activities, “techniques” (e.g. cause and effect diagram, CPI) are suggested. To assist better communication during the improvement act, the authors demand well defined “roles” of the PIT members, but do not give further details about the roles. No “results” and “information model” are presented.

McAdam (1996) presents an integrated four-phase business improvement methodology. Phase three “Improve the process” concentrates on the act of improving and consists of six “activities”. He also suggests various “techniques” to support this phase (e.g. opportunity grid, road maps, affinity diagrams), but does not allocate them to activities. “Roles” and responsibilities for performing the activities are not defined, but mentioned to be an important task. “Results” and their “information models” are not described, even not implicitly.

In their research about BPI, Siha and Saad (2008) propose the specify, analyze and monitor (SAM) framework that consists of three main phases: SAM. Each of the phases In their research about BPI, Siha and Saad (2008) propose the specify, analyze and monitor (SAM) framework that consists of three main phases: SAM. Each of the phases

Evaluation of act of improving and is called “define feasible BPI alternatives”. No further details about BPI approaches

“activities” that should be performed to support this step are given. As well as no “results” or “information models” are mentioned. Kind of “techniques” can be implicitly identified: Within the three stages questions (“how”, “what” and “Right 3Rs” (readiness, response, resilience)) should be asked to achieve the aim of the stage. “Roles” are not mentioned as well.

Khan et al. (2007) introduce the development of a BPI framework and performance assessment methodology (PAM) tool. The BPI framework consists of six stages. Stage three focuses on the defining and planning the BPI. But this stage does not provide further information on how to achieve improvement and what “activities” should be performed. “Techniques”, “results” or an “information model” are also not mentioned. But it is mentioned that in phase the selection of an improvement leader or champion is important, what implicitly can be partly seen as an advice for the allocation of “roles”.

In their research, Adesola and Baines (2005) describe a generic and practical methodology termed model-based and integrated process improvement (MIPI) to support the implementation of BPI. The methodology is based on a seven-step procedural approach that guides the actions of a process design team. Step four in this procedure is devoted to redesign the process. Therefore, “activities” are explicitly stated (e.g. benchmark the process, model and validate new to-be process model, identify IT requirements, etc.) and also “techniques” to support these activities (e.g. benchmarking, creative silence workshop, brainstorming). There is no description of “results”, “roles” or an “information model”.

Povey (1998) examines the effectiveness of various BPI and benchmarking methodologies described in the literature and develops a new “best of breed” BPI methodology. This methodology uses 14 steps (so-called “what needs to be done”). Step six concentrates on the development of the “to-be” model of the improved process and gives advice for the redesign and improvement “activities” (e.g. consider new technologies to simplify the process design, learn from approaches other organizations use, identify root causes for problems). To support these activities, kind of “techniques” can be identified (e.g. root cause analysis, benchmarking). Within this step a description of how this step has to be performed and who should perform it is given, so that partly “roles” can be identified (e.g. an IT expert should be a full time member of the team). There is no description of “results” or an “information model” neither explicitly nor implicitly.

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) Varghese (2004) proposes a strategy for launching meaningful BPI. This strategy comprises four phases, where phase four is about “manage and improve process”. To improve the business process, a process improvement reference guide is introduced that provides a simple road map (“activities”) to systematically advance the capability of a process. This roadmap is supported by different “techniques” (e.g. statistical process control, activity based cost analysis) that are not explained in more detail. The “results” of these techniques are not described just as well as some kind of “information models”. The approach postulates that the improvements need to be institutionalized and suggests a clear system of accountabilities which is not further detailed. “Roles” for improving a business process are not defined in this approach.

The work of Seethamraju and Marjanovic (2009) describes a BPI methodology different from the “traditional” improvement approaches. The emphasis is not on mapping an as-is model and design a new to-be process, the focus is on the process

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of knowledge co-creation in the development of a “to-be” model in a consensus process.

Within this methodology different phases (“activities”) to perform the improvement are suggested (e.g. analysis, design new version of the key decision tasks, implementation), but no “techniques” that would support the different phases. The methodology does not describe the “results” of each phase and also no “information model”. A “role” model is also missing. The only distinction is between BPM team members and employee

(workshop participant), but there is no allocation of roles to the different phases of the approach. Even if this work describes the differences between this new methodology and the traditional approaches, it does not focus on the act of improvement, its procedure or techniques that support the act.

McAdam and McIntyre (1997) describe in their paper how an existing BPI methodology (Ulster Business School approach) was improved through the incorporation of organizational learning principles. The “new” methodology focuses in its fourth of overall five phases on improving the process. But this phase is not further drilled down in specific “activities” which would guide the improvement procedure. Also, no “techniques”, “results”, “roles” or “information model” are suggested or can be identified implicitly.

Paper (1998) presents a framework for BPI adopted by Caterpillar MEC (Mossville engine center) that consists of five phases (process selection, process mapping, process improvement, process verification and process implementation). The process improvement phase contains three major “activities” (so-called methods within this approach) of improvement (simplification, correction, and reengineering). It is not unusual that all three activities for improving the process are used. At Caterpillar the improvement usually starts with the simplification of the process. Also “techniques” for the improvement phase are suggested as for example brainstorming or process decomposition. But these few techniques were not explicitly assigned to activities. The framework contains a description of “roles” (e.g. management review team, project review team, macro- and micro-process team) involved in the improvement act, but not an allocation to the activities. So techniques and roles can only be seen as partly accomplished. “Results” and an “information model” are not discussed.

The work of Bisson and Folk (2000) presents a case study on how to do a BPI using the case of a phone company. They describe 15 steps to redesign a process. Steps seven till

11 (build the “is” map (seven), identify disconnects (eight), decide whether to patch or redesign the process (nine), define “should” attributes (ten) and build “should” map (11)) can be implicitly identified as “activities” that describe how to perform the act of

Downloaded by UNIVERSITY OF INDONESIA At 20:23 19 March 2017 (PT) improvement. No support of the activities through “techniques” for deriving the “should” from the “is” are suggested. Also no “results”, “roles” or “information models” can be found.

5.2 Interpretation of the results The structured evaluation of BPI approaches shows, that none of the above listed approaches delivers a complete method according to the MEM, which means that none of the BPI methodologies adequately support the practitioner through all stages in the BPI activity (Adesola and Baines, 2005).

Having in mind that none of the approaches was developed according to the MEM, it might be obvious that they will have shortcomings concerning these aspects, but these shortcomings leave room for further improvement of these approaches. One result of the analysis is for example, that none of the approaches include an information model.

This means that the reproduction of generated results cannot be guaranteed and is

Evaluation of difficult to accomplish for the BPI practitioner. Information models can serve as BPI approaches

blueprints here and give some advice of how the results of the performed activities during the improvement act should be constructed. Information models would also allow and ease the comparison of the results because of their common used meta model for example for the modeling technique (or language) the result is created with.

None of the approaches suggest results for every activity of the improvement phase.

Only Six Sigma gives some sort of implicit explanation of some results, when the techniques are explained in detail. But as it is important to know why an activity has to