2002 UICEE 3rd Global Congress on Engineering Education Glasgow, Scotland, UK, 30 June - 5 July, 2002 A systems thinking approach to the paradigm shift in engineering education. John St. J. S. Buckeridge¹ and Erol Inelmen2 ¹Faculty of Science and Engineering, Auckland University of Technology Private Bag 92006, Auckland, New Zealand 2 Bogazici University, Istanbul, Turkey. ABSTRACT: Changes in our economical, political, technological, social, cultural, and environmental life have necessitated a paradigm shift in engineering education. Two different views – on one side the “reductionist”, on the other the “holistic”, provide thought for the paradigm shift strategy. This paper uses a “systems thinking” approach to describe the current conditions, and suggests an appropriate model to further the current paradigm change. An historical overview of the systems thinking approach is provided, along with a consideration of the possible limitations on modern engineering education that this may imply. A model where the stakeholders: employers, administrators, instructors, learners, citizens and politicians, are engaged in the decision making process is the core of the paper. Each stakeholder clearly has different priorities, and the goal of the model is to find an optimal compromise between the two views. However, an interesting quandary remains in academia: there is still a strong incentive to be engaged in “cutting edge research”. This, by its very nature, encourages a quest for deep (but narrow) knowledge, i.e. “reductionism” in its broad sense. As a possible compromise between reductionism and systems thinking, we suggest a curriculum that starts with an holistic approach but closes with a learning environment in which the virtues of both reductionism and systems thinking are integrated and appropriately extolled. INTRODUCTION PLANNING AND IMPLEMENTATION Peter Checkland’s seminal work “Systems Thinking, Systems Practice” has had a powerful influence upon the way in which systems engineering is now taught in many engineering curricula [1]. Checkland was concerned about the way in which scientists (including engineers), thought and acted in the process of decision-making. From the perspective of modern science, he saw our world-view as a reality based upon conjectures, established in reductionist repeatable experiments, which have not yet been demolished [2]. Reductionist thinking has a place in engineering, but it should not be studied in isolation. Humans are now only too well aware of the environmental damage that is derived from our activities. We have the understanding not only to predict effects of our actions upon the biosphere, but also to plan and implement remedial activities to mitigate deleterious effects. This greater world-view has not arisen by chance – it is a result of increasing awareness of the biosphere and the growing influence of holistic, or systems thinking. No action may be taken in isolation: there is interconnectedness between our activities, and unless this relationship is taken seriously, it will lead to systems failure. One of the more delightful philosophical literary works that explores the relationship between action and effects is by Robert Pirsig [3], and this is used as a text to “open the eyes and minds of students” in numerous engineering schools. Pirsig’s book is all the more appealing, as it provides systems philosophy within an engineering context. Two approaches to decision making are discussed here: reductionism and systems thinking. These are at opposite terminals within a spectrum in which analysis moves from the minutiae to the all-encompassing. Clearly both approaches have merits in problem solving, especially in engineering. It is important then to emphasise that both have their place in engineering education – and it is certainly not an object of this paper to demonstrate otherwise. This paper explores the importance of systems thinking in problem solving within a professional engineering context, then focuses on how systems thinking can be employed in refining and updating engineering curricula. THE HOLISTIC APPROACH Holistic analysis, or systems thinking, is all about extending an individual’s (or a group’s) world-view to provide: An effective means whereby behaviour/actions (of either an individual or a group) can be analysed. A comprehensive analysis of the effects of any individual and/or group action. Note: The above points define processes that are fully or partially generated through human activity. Thus it excludes decisions on those natural processes in which humans have no input. Systems thinking is none-the-less a powerful tool through which any natural system can be evaluated. It is particularly valuable in assessment of risk. Systems thinking in the human sphere necessitates that individuals undertake planning to ensure that any undesirable (or deleterious) outcomes of activities are minimised or eliminated. The first phase in the systems thinking process is to determine interested parties (figure 1). This may be as simple as the placement of notification in a small regional newspaper, to nationwide (or global) publicity about major issues. Upon identification of stakeholders, the parties should embark upon a process of scoping, through which the potential impact on the physical, biological and human activities outside the proposal are evaluated. In essence, this systems thinking is all about thinking “beyond the square”, and is now perceived as a necessary mental tool for all professionals. In particular it is seen as essential in engineering, where local, regional and national human needs are evaluated against the likely effects on the regional biota, environment and in some cases the global community. DEFINING THE ACTIVITY DETERMINING INTERESTED PARTIES In New Zealand, any lack of engineering input in politics may be blamed upon a paucity of engineers in politics. Unlike countries like Japan and Singapore, there are few engineers in politics – engineers appear to find politics either unfulfilling or irrelevant. Thus there are few engineers in the Halls of Power, with a net result being insufficient engineering expertise in the decision-making processes. Ownership of decisions (and of resource use protocols) is the key to success in gaining acceptance (or support) for any change that will result from an activity. All too often, critical decisions are made on the basis of a single consultation with any “interested parties”. In Figure 1 feedback loops are incorporated to ensure outcomes actually reflect the needs and desires of the stakeholders. This diagram is however, not complete, for many situations, further systems will need to be implemented to monitor progress of activities, and where necessary, to modify these [5]. SCOPING FOR EFFECTS THE REDUCTIONIST APPROACH DIALOGUE WITH INTERESTED PARTIES Reductionists attempt to understand complex things by analysis of its components, i.e. there is a tendency to believe that systems can be fully comprehended in terms of their isolated parts. There is of course some validity in taking something apart to see how it works. However, as a sole analytical tool, pure reductionism is flawed, as it fails to address any of the relationships between the components of a system. conflict resolved ? yes no proposal approved ? yes SYSTEMS THINKING IN EDUCATION ACTIVITY MODIFIED* no is change possible ? ACTIVITY PROCEEDS no yes ACTIVITY ABORTED Figure 1. Systems Thinking: The process. *If modification of the originally proposed activity is undertaken, a range of responses may be required, from renewed dialogue to a redefinition of the activity (if sufficient change is proposed). In all too many instances “engineering” decisions, involving resource use, are made on the basis of political expediency. By this, it is implied that many important (i.e. economic) decisions are made by individuals other than engineers and technologists: it is politicians who are defining the course of action. Unfortunately politicians have a poor planning record. Their focus is all too often on the next election (in New Zealand this is a mere three years at most). The result, from an urban development perspective is all too often “SUA” – stochastic urban accretion, in which planning is undertaken as a knee-jerk response to continual crises [4]. In recent years, there has been a lessening of the appeal of science (and engineering) as a career. To some degree this may reflect the ascendancy of the cult of antitechnology, but it may also follow a perception that there is greater fiscal reward in commerce, and perhaps better career prospects [6,7]. (A frightening possibility is that engineering may be being increasingly perceived as “too difficult” for the reward – i.e. there are easier pickings to be made in the business world). Educators must promote the idea that science and engineering degrees are not an end in themselves, rather they are a means to an end. As implied earlier, more engineers as politicians would ensure more balanced planning in resource development. Indeed, in the corporate world, some of the most successful businesses are those where executives are graduates of both technology and commerce. Commerce and information technology alone add nothing to society. Together with engineering, they are more likely to result in informed decision making, with socially acceptable and agreeable outcomes. How do we make engineering more appealing as a career choice? It clearly is too late to contemplate enlisting most students when they are about to embark upon university study. A recent comment comparing international student success in the “sciences” [7] highlighted the need to reassess the contentheavy curriculum characteristic of secondary school science programmes. The emphasis on an enormous number of facts has made science less accessible, and has diminished the opportunity for teachers to show the relevance of science – especially to the world of our “client group” which begins with 13 year-olds. If the curriculum is revised by decreasing the plethora of facts students are required to learn, then educators may well be accused of “dumbing down” of science. There is a balance then, of contextualising sciences in order to enhance their appeal, and maintaining sufficient academic rigour so as not to diminish (or devalue) the output. Ultimately it is acceptance by all stakeholders (potential and current students, graduate engineers, employers and the engineering profession) that will ensure the viability of an engineering degree. (Figure 2). DEFINING THE CONCEPT OF ENGINEERING (as a career) TARGETING POTENTIAL STUDENTS There are two levels in which systems thinking should be addressed in the university environment: clearly it must be introduced to students (in our case engineering students) as a powerful tool for decision-making. Secondly it must be used in the way in which we progress our pedagogy. i.e. the manner in which we develop modify and implement changes in curricula (Figure 2). At the UICEE Conference held at Wismar in 2000, it was effectively demonstrated that in universities, actual changes (to the curriculum) significantly lag behind “implemented change” [8]. This reflects inertia within the teaching body – a resistance to change (often from those who ultimately do not actually teach the subject), entrenched organisational barriers and lack of appreciation of the nature and value of the implemented changes. UNIVERSITY: DEVELOPMENT OF EFFECTIVE LEARNING ENVIRONMENT student satisfaction ? no PEDAGOGY MODIFIED students graduate ? yes The most potent advocates for science and engineering careers are none-the-less current practitioners (including graduates whose vocation takes the outside the mainstream of the practicing engineer). It is imperative that we, the stakeholders, communicate to the wider public the value and thus the fulfilment that a career in engineering can provide. SYSTEMS THINKING WITHIN THE UNIVERSITY COMMUNICATING yes aspect is performed within the “decision diamonds” where, in a question like “is change possible?”, embedded elements may address economic, ethical and environmental concerns. Thus each decision diamond represents a further systems analysis as in Figure 1. Effecting change at faculty level A systems approach to implementing curricular change must incorporate the following methodologies: no is change possible ? PROGRAMME PROCEEDS WITH MONITORING 1. Involvement in the decision making process of individuals who will be functioning within the new environment. 2. Involvement in the decision making process of individuals who will be secondarily effected by the implemented changes (i.e. the “stakeholders). 3. Ensuring that individuals through “ownership of the new environment” accept responsibility for implementation. 4. Ensuring that all parties to change are appropriately accountable in the implementation process. 5. Ensuring ongoing commitment of all parties to the system, the changes and the process. yes employer & profession satisfied ? yes no no PROGRAMME DISCONTINUED Figure 2: A systems approach to the promotion and implementation of engineering teaching programmes. As with all systems approaches to problem solving, there is a “termination of project” option. Of course this is a fairly draconian option, as it is has ramifications that are not necessarily evident in the above diagram, e.g. staffing. It is important to note however, that all aspects, including staffing, are incorporated in the decision box “is change possible?” Ultimately, if there are no students, there are no academic positions. The “proceed” option must include an effective monitoring programme (including appropriate employment), as engineering is clearly not a static science. As well as lateral thinking, a systems approach to problem solving also necessitates vertical thinking. In Figure 2, this It may not necessarily be enough to give staff an opportunity to become involved in a paradigm shift. In many universities, some staff, especially those of long standing may be comfortable with the status quo. This need not mean that they are “drifting to retirement” and seek to maintain an easy (light) load. Rather, it may reflect full commitment, and a very heavy teaching load, i.e. they do not have sufficient time to provide any meaningful input into a curriculum review. Thus, to ensure involvement of staff, management must provide time. Further, management must provide a forum where staff members are able to give feedback in a non-threatening environment. This is not always easy to achieve. To compound the problem, some academics do not see themselves as administrators and resent administrative duties. A response to heads of department may well be: “It is your job to provide teaching resources, give me the resources and the students, and I will ensure an appropriate environment for learning”. University stakeholders Change in the engineering curriculum is best achieved when support of all stakeholders is obtained. As discussed, identification of these stakeholders and their needs is part of the scoping process (Figure 1). However, scoping also involves prioritising needs, and where these needs differ, resolution of conflict between parties. In Figure 3, some of the motivating forces for those involved in education are presented. The potential for successful resolution of disputes about how (or whether) a paradigm shift should occur may be low, especially when the priorities (and basis for these) are not communicated between the stakeholders. prestige university administration Thus, effective communication (and the empowerment of stakeholders that this engenders) is pivotal in effecting a paradigm shift in the university environment. MANAGING ENGINEERING EDUCATION The importance of systems thinking, both as part of, and for development of engineering education is clear. Universities have tended to be rather insular in the past, and this has been a weakness in the new world of fiscal (and moral) accountability. The perspective represented in Figure 3 is thus only a small part of what a full systems approach would provide. The relationships between the university and the taxpayer are in this diagram simply implied. None-the-less these relationships, ultimately to “those who fund us” must be explicit if the concept of the university is to continue to exist. We in schools of engineering have a special place in the move to validate the university’s existence, as engineering can be readily seen as of benefit to society. We must be prepared to assume an even greater rôle in public outreach if the university model is to survive. Let us make sure that our immediate managers fully appreciate this… REFERENCES 1. Buckeridge, J. S. From Reductionist to Systems Thinking: The Engineering Imperative. In The Environmentally Educated Engineer: Focus on Fundamentals. Elms D. and D. Wilkinson. (Eds). Centre for Advanced Engineering, University of Canterbury, Christchurch, New Zealand. 119123. (1995). income status 2. Checkland, P. Systems Thinking, Systems Practice. John Wiley & Sons, Chichester, England. 330 pp. (1993). remuneration 3. Pirsig, R. M. Zen and the Art of Motorcycle Maintenance. Vintage Press, London. 424 pp. (1974). academic staff commitment graduation capabilities 4. Buckeridge, J. S. Stochastic Urban Accretion and Marine Reserves: Complementary or Conflicting options? Proc. 19th Ann. Mtg. Int. Assoc. Impact Assessment: Impact Assessment for a New Century, Glasgow. 10 pp. (1999). 5. Buckeridge, J. S. A systems approach to the geotechnical design of rigid seawalls. Trans. Inst. Professional Engineers New Zealand. 22(1/CE): 32-37. (1995). students Figure 3. Motivating forces for those involved in university education. Embedded in the ovals are sublevels, e.g. in “capabilities”, knowledge of the discipline is pivotal, however this must be supplemented with employability (in which is embedded a further level addressing issues such as communication skills, ability to network, ability to work as a team member and personal motivation); “income” reflects sublevels such as government policy, student numbers and enrolment criteria. To be successful, the basis for any decision must be clearly articulated to all interested parties. 6. Buckeridge, J. S. Ethics, Environment and Culture: Their significance within Engineering Education. David Painter and John Peet (Eds.). Proc. Intl. Conf. Ecological Engineering. Christchurch, New Zealand. 57-61. (2001) 7. Campbell, P. Educating future scientists (Editorial). Nature 414 (6865): 673. (2001). 8. Wald, M. S. Managing curriculum change – a challenge for engineering education. Proc. 2nd UICEE Global Congress on Engineering Education. Wismar, Germany. 61-63. (2000).