TEAM TYPOLOGIES: What is the direction?
Transcription
TEAM TYPOLOGIES: What is the direction?
TEAM TYPOLOGIES: What is the direction? Chantal Savelsbergh, assistant professor of management, Open university of the Netherlands* Anne Delarue, PhD, Department of Sociology, Section Work and Organization, Catholic University of Louvain, Belgium** Abstract Authors from various disciplines pay attention to teamworking with a very specific focus. Often they use a certain typology based on critical determinants to analyse whether different sorts of teams are linked with other variables, including performance indicators. The aim of this study is to go more deeply into the existing variety of team typologies. A literature review on team typologies has been executed to find answers on the leading questions: What criteria are the typologies based on? Have the different typologies been empirically tested? The results show many different grounds of categorization. Furthermore these grounds of categorization are often based on just one aspect of teams. The authors present an integrated model for a team typology, with a focus on team performance, which combines various dimensions of categorization in order to facilitate the application of empirical findings for research and practice. Keywords: Teamwork; Team typology; Team taxonomy, Literature review Introduction The importance of teams for organizational success in the modern economy is emphasized continuously in the management and academic press (Banker et al., 1996, 867; Cohen & Ledford, 1994, 13-15; Glassop, 2002, 226; Appelbaum et al., 2000, 13). Some studies argue that the empirical evidence regarding team effectiveness is limited and often has the form of anecdotes or descriptive case analyses. However, since 1990 a vast body of research emerged that aims to evaluate the benefits of teams for work organizations in a more systematic way. In 2004 we made a critical examination of studies that analysed the team-performance link by using large-N surveys (Delarue et al., 2004). A remarkable finding was that uniformity is lacking within this specific type of research. The studies use different definitions and classifications of teams and employ various research designs, with particular strengths and * P.O. Box 2960, 6401 DL Heerlen, the Netherlands; e-mail: [email protected] ** E. Van Evenstraat 2B, 3000 Leuven, Belgium; e-mail: [email protected] 1 limitations, resulting in inconclusive findings. We are confronted with a conceptual problem, because there seems to be an imbalance between the singing of teamwork’s praises on the one hand and defining uniform concepts and variables to measure teamwork and its effects in an appropriate way on the other. Furthermore, an explorative study on teamwork among HR officers in the Netherlands shows that findings from scientific research on team effectiveness are not often applied in their practices. One of the reasons HR officers do not use previous results is their doubt about the applicability of the findings in their own typical team situations. The teams are often described in detail in previous studies that took place in laboratory settings. Those laboratory settings however are seen as much too simplified compared with the real context in which teams are functioning. Academic publications on field research often do not make it clear to what extent findings can be generalized to other types of teams. Mostly the authors even explicitly refer to the limited validity of their findings for other teams in other contexts. Although many classifications schemes relevant to workgroups have been offered in the last decades, none has been widely adopted by organizational scholars or practitioners (Devine, 2002). The aim of this study is to go more deeply into the existing variety of team classifications. Which typologies exist? Which variables are used to assign a team to a particular type? Are the classification schemes empirically tested? Can they be combined in an integrated model? A move towards more conceptual exhaustivity might be useful to find explanations for the divergent results in the teamwork-performance debate. More insight in the different team typologies that are used can also be a first step towards building a bridge between research and practice. A team classification based on criteria that are recognizable for both practice and science will help teams to learn from teams of the same kind. The paper will mainly consist of a literature review, bringing together different classifications that were used in studies on teamwork in different academic fields. The article is divided into 4 sections. In the first, some general principles and advantages of working with typologies are outlined. In the second, we describe the methodology of the literature search. The third section forms the core part, as we present here an overview of team typologies in which all the studies of the review are positioned. Based on the findings, an integrative typology will be 2 offered and some requirements will be formulated to improve the working with team typologies in the future. About classification as a basic conceptual exercise Classification is a very central process in the social sciences but it seldom receives methodological exposition, perhaps because it is so ingrained in research practice and in all facets of our lives. Yet, as typologies are the central topic of this article, it can be useful to pay particular attention to some general principles and definitions. To do this, we rely on a volume of Bailey (1994) on typologies and taxonomies. In its simplest form, classification is merely defined as the ordering of entities into groups or classes on the basis of their similarity. Grouping objects or persons by similarity, however, is not as simple as it sounds. Alternative classifications are possible, depending on the dimensions or variables on which they are based. Crucial to successful typology development then, is the ability to ascertain the key or fundamental characteristics on which the classification will be based. Unfortunately, there is no specific formula to do so, which means that prior knowledge and theoretical guidance are required in order to make the right decisions. Bailey discerns two essential approaches: typology and taxonomy. The former implies conceptualization, along one or more dimensions. The latter begins empirically, with the goal of classifying cases according to their measured similarity on observed variables. In practice, the conceptual accuracy is far gone and most authors use the terms classification, typology and taxonomy interchangeably. Here we will reserve the term taxonomy for a classification that starts from empirical entities. A basic rule for classification is that the classes formed must be exhaustive and mutually exclusive. This means that there must be one (and only one) class for each of the N persons of objects. Classification can either be unidimensional, being based solely on a single dimension or characteristic, or multidimensional, being based on a number of dimensions. Dimensions are generally categorical data, such as nominal or ordinal variables. Each dimension comprises a number of categories (for example: the dimension intelligence can be dichotomized in the categories intelligent/unintelligent). Different dimensions can then be combined to construct a more complex, multidimensional 3 classification. The (combined) categories can be defined as cells in a table. They are the resulting types or type concepts, which can be labelled. The role of typologies in scientific development is to help organize and make sense of complex phenomena (Bell & Kozlowsky, 2002). First of all, classification is a descriptive tool, but another goal is to reduce complexity and achieve parsimony, which is essential if one wants to analyse the reality. It allows on the one hand to recognize similarities among cases, and group similar cases together for analysis, and on the other hand to differentiate between different cases, so that dissimilar cases can be separated for analysis, rather than remaining mixed together (Bailey, 1994). Typologies are especially useful in new areas of inquiry that are little explored and characterized by a variety of diverse but related phenomena. By creating a schema that establishes similarities and differences, the scientist endeavours to classify the phenomena into distinct types. Classification, however, stays merely the first step. Ultimately, the scientist hopes to identify new and unexplored aspects of the phenomena that are ripe for research. Because there are such wide differences in the sorts of teams and there doesn’t exist a consensus on an empirical method for classifying team types, it is easy to understand why there has been difficulty in arriving at generalizations about teams (Sundstrom et al., 1990). Further, mixed empirical findings when examining teams as a generic set offer another reason why a distinction among different types of teams is useful. A good classification can also be an answer to the potential problems that managers have in translating scientific findings into issues such as team staffing, team training, team leadership, and assessing team effectiveness in their own practice. What we will do in this article, is in fact presenting the existing team typologies in a coherent framework. We will make an attempt to group objects (in this case: the studies of our review) by similarity and we chose to use the dimension on which typologies are based as the distinguishing criterion. 4 Methodology A literature search was conducted to identify both published and unpublished studies of teamwork which decribe a certain typology from 19801 to the present. Following Webber and Donahue (2001), this time span was chosen because of the surge of interest in the study of teams in the work place from the 1980s forward. Different strategies were employed to search the relevant literature. First, a computer search was done of EBSCOhost, Picarta, Science Direct, Emerald, Sage and Google Scholar. The specific words used to search these databases included team/group/unit/teamwork in combination with typology/types/taxonomy/ classification. Second, we conducted a kind of manual search by checking the sources cited in the reference lists of literature reviews, articles and books on this topic. Third, we manually searched the conference programs and abstracts of the International Workshops On Teamworking (IWOT) which were yearly organized since 1996, this mainly to identify any relevant research that was unpublished or had not completed the publication procedure. Finally, we contacted some prominent researchers in the area to request interesting studies. These strategies finally yielded 35 studies. At this point, we agree with Devine (2002) who states that this kind of review necessarily stays selective in that a broad interpretation of the term “classification” would yield hundreds of publications containing casual references to different kinds of teams. Instead, we focused only on studies that explicitly distincted different groups of teamwork. The retained articles are listed in the different tables in the next section. Team typologies until now The insight that what is called a ‘team’ can cover different realities and that what is found for one type of teams not necessarily counts for every other type is not new and some authors already discussed previous taxonomic work on workgroups (Benders & Van Hootegem, 1999; Devine, 2002). This article can contribute to the discussion by reviewing the existing team typologies through a coherent framework. Referring back to the concepts of Bailey (1994), we are especially interested in the dimensions which are used to build a certain typology. Focusing on these classification grounds, we identified four primary groups of team typologies: typologies that categorize teams based on their (1) functional role or mission, (2) structural features, (3) maturity and (4) diversity of the team members. In what follows, the 1 The book of Thompson (1967) is an exception, as it was published earlier. Because the typology is still used quite often, we included it in the review. 5 articles of the review will be presented within this framework comprised of four subgroups. For each typology we indicate the labels of the team types, the dimensions which are used to classify the teams, whether the classification is deductive or inductive and whether it was empirically validated. A typology is scored as deductive when it was derived from theory. When a typology is based on an attempt to cluster different sorts of teams that were encountered in practice, we speak of an inductive typology. Team typologies based on the mission of the team A first group of typologies is formed by scholars in management and organization studies who categorize workgroups found in actual organizations based on their functional role. Here, the mission or goal of the team is the central distinguishing feature. What is a group doing, what is the reason of its existence, what is the type of ‘game’ the team members are playing? This is a classification ground that appears in numerous studies. Devine (2002) developed an integrative team taxonomy which can help understanding team effectiveness. In his article he summarizes a lot of functional classifications, by saying that many of them include team types charged with improving organizational effectiveness, solving problems, handling specialized projects, producing basic goods or services, integrating the activities of multiple functions or managing the organizations. Table 1 Team typologies based on mission Auteur Antoni (2004) Labels teams which are part of the regular work organization; teams which complement the regular work organization Bell & Kozlowsky virtual teams with complex (2002) tasks; virtual teams with simple tasks Cannon-Bowers context driven team (1995) competences; team contingent competences; task contingent competences; transportable competences Devine (2002) executive; command; negotiation; commission; design; advisory; service; production; performance; medical; response; military; transportation; sports Dunphy & Bryant teams with a focus on skilling; (1996) teams with a focus on Variables In- / Deductive position within the organization, team task, duration of collaboration deductive Emp. validated no a continuum differing in task complexity deductive no team competences deductive no fundamental work cycle; physical abilities; temporal duration; task structure; active resistance; hardware dependence; health risk inductive yes team task differing in need for: inductive yes 6 Glassop (2002) Hackman (1990) Recardo et al (1997) Katzenbach & Smith (1993) McGrath & O’Connor (1996) operational responsibility previously performed by managers; teams with an emphasis on problem solving innovation and strategic decision making problem solving groups (quality circles); self-managing or natural work groups; crossfunctional teams (committees, project teams) top-management groups; taskforces; professional support groups; human service teams; customer service teams; production teams simple problem solving teams; taskforces; cross functional teams; self-directed teams teams that recommend things; teams that make or do things; teams that run things taskforces; teams; crews Mohrman, Cohen & Mohrman (1995) Sundstrom et al. (1990) work teams; integrating teams (subtype: management teams); improvement teams advice & involvement teams; project & development teams; production & service teams; action & negotiation teams Webber & Klimoski (2004) West (1996) crews; other teams Devine et all (1999) simple decision making workgroups; complex decision making workgroups ad hoc project teams ; ongoing project teams ; ad hoc production teams ; ongoing production team 1. breath technical expertise 2. degree of self-management 3. degree of self leadership. team task; duration; hierarchical level of the team members; deductive yes team task deductive yes commitment to and importance of team goal inductive yes team task inductive yes member / roles; technology; tasks / projects deductive no mission of the team inductive yes degree of differentiation (i.e. specialization and autonomy), integration (i.e. degree of integration/interaction with the larger system outside the team) and work cycles (i.e. length and novelty) member / roles; technology; tasks / projects decision making complexity deductive no deductive yes inductive yes inductive yes team task; composition and structure Team typologies based on structural features A second group of typologies involves classifications based on the structural design of the work group. This has to do with the way the work is organized within the team, without taking into account the individual characteristics of the team members, fulfilling the functions in the team. Central structural characteristics of a team are the division of labour and the task design. The number and the sorts of tasks that are delegated to the team members are crucial 7 here and indirectly, aspects such as degree of autonomy, role of the team leader, dependency on technology, control structures or inter team relations are linked to this. This classification approach also seems to be often used in literature. Table 2 presents an overview: Table 2 Team typologies based on structural features Authors Team types van Amelsvoort & Japanese, lean or just-in-time Benders (1996) teams: the HAN; Swedisch, German, sociotechnical or selfdirected workteams Bacon & Blyton high road teamworking ; low (2000) road teamworking Dimensions In- / Deductive autonomy and the number of hierarchical levels. deductive Emp. validated yes deductive yes deductive no deductive yes deductive no inductive yes deductive yes deductive yes deductive no deductive yes degree of change (fundamental vs. less significant); systems of task allocation; job responsibilities Banker et al. traditional work groups; quality team autonomy (1996) circles; high performance work teams; semi-autonomous work groups; self-managing teams; self-designing teams coverage of group delegation Benders et al. weak group delegation; (proportion of employees involved); (1999) medium group delegation; intensity (number of decision team-based rights) Berggren (1993) Japanese; Swedish production arrangement; dependencies between groups; supervision and control; work intensity; role of the unions Delarue et al. lean directed; lean selfdivision of labour within the (2004) directed; sociotechnical organization; division of labour directed,; sociotechnical selfwithin the team; role of the directed teamleader Doorewaard et al. hierarchical teams; shared variety of the job regulation tasks; (2002) responsibility teams nature of the division of responsibilities Jürgens (1992) German; Japanese degree of time autonomy; hierarchical structure; degree of standardization; functional flexibility; training Task design, organization principle, Kuipers (2005) sociotechnical, Western, organization structure, leadership, (mostly European) teams; improvement focus, improvement Lean, Japanese, (partly philosophy, production set-up American) teams interdependence in work Thompson (1967) pooled/additive; sequential; arrangement reciprocal and intensive; interdependent work; arrangement teams. It’s remarkable that most of the academic efforts to develop categories of teams based on structural features, have directly or indirectly been informed by the sociotechnical notion of ‘autonomous work groups’ (e.g. Pasmore, 1988; De Sitter, 1994) or by work design theory (Hackman & Oldham, 1976). At the same time, it should be pointed out that most of these 8 studies were carried out in work teams at the executing level in organizations, mostly in a production environment. This specific setting as such already determines a lot of factors (type of activities in the team, kind of responsibilities, stability,…) which can be a possible explanation for the fact that these kind of typologies are unidimensional, only focusing on structural characteristics as categorization ground. Team typologies based on maturity Some authors try another tack in using a process approach. Their typologies address the maturity of a team by indicating the developmental stage it is in or the competences that are acquired. The decision to implement teams in an organization can be considered the starting point of a trajectory in time in which combinations of individuals must develop into well cooperating results-oriented teams by means of an internal growth process. Although peripheral in most research, time is a crucial factor here. Ancona, Goodman, et al. (2001) make a call to sharpen the temporal lens in conducting organizational research. Putting time front and centre, one begins to think not just about processes and practices but also about how fast they are moving, their trajectories over time, the cycles they align with and the historical positions they take on the continuum of time. Different evolutional models were traced out, with the assumption that whatever variant of formation each team exhibits, all groups pass through some sequential stages of development. These stages may vary in duration for each team, but all teams will need to experience them in order to grow into an effective performing work unit. However, following Scholtes and Van Amelsvoort (1994) we want to stress the fact that the order and duration of the phases is not rigid: overlaps and reversions are part of the team reality. In practice, team members leave the team and others join it. A change in the composition of the team often means a regression to an earlier stage of development. Table 3 Team typologies based on maturity Auteur Labels Van Amelsvoort et al. (2003) bunch of individuals; group; team; open team West et al. (1998) fully functional team; social team; disfunctional Variables Inductive Empirically Deductive vallidated skills or professionalism; deductive organising capacity; cooperation; result oriented work the extent of social inductive reflection and task yes yes 9 Katzenbach & Smith (1993) team; cold efficiency team reflection working group; pseudo team; potential team; real team; high performing team team performance inductive yes Team typologies based on diversity of team members In the fourth group of typologies, the composition of the teams and the interpersonal relations of their members play a central role. This approach should be situated in the context of organizational psychology and theories of group dynamics. The central idea behind this kind of typologies, is that the characteristics of the team members determine the variety between teams. The degree of diversity between the team members has to be assessed, which can refer to age, gender, race, educational level, functional status, etc. It has to be noticed that diversity in tasks or processes is explicitly left out of consideration here. Table 4 Team typologies based on diversity of team members Auteur Labels Variables Ancona & Caldwell (1992) tenure homogeneous groups ; tenure diverse groups coefficient of variation of team members’ tenure in the organization; amount of functional diversity Campion et al. (1993) functional homogeneous groups; functional diverse groups degree of heterogeneity areas of expertise, backgrounds and experiences, skills and abilities race, ethnicity, sex, age; attitudes (job satisfaction, organizational commitment, values of the team members readily detected attributes of diversity versus underlying attributes; task-related or relations-oriented attributes of diversity. gender, race, age, tenure Harrison et al. (1998) surface level (demographic) diversity; deep level (attitudinal) diversity Jackson S.E. (1996) homogeneous teams; bipolar teams Mayo et al. (1996) index of demographic group heterogeneity (0= low heterogeneity, 1= high heterogeneity) race/ethnic background, diversity in observable nationality, age, gender; attributes; diversity in values, skills and underlying attributes Milliken & Martins (1996) Inductive Deductive deductive Empirically vallidated yes deductive yes deductive yes inductive yes inductive yes deductive no 10 Webber & Donahue (2001) knowledge, cohort membership less job-related diversity; age, gender, race/ethnic; highly job-related diversity functional, educational, occupational deductive no Towards a combination model Our review makes clear that grouping the different typologies based on the classification grounds works well. A variety of typologies, from different theoretical backgrounds could be positioned within this framework. Remarkable is that most typologies are based on only one dimension, of which mission and structure are the most applied. These are very general classifications, and in a lot of articles it is stated in the conclusions section that the findings of the research should only be considered for the organizations that were studied and that generalizations cannot be made. This makes it hard for practitioners and other researchers to translate research results to their own settings. It is the aim of our study to work towards a typology that can help future research to be build on existing knowledge on teams and make research results more applicable for practice. To realize this, it is necessary that a team can be described with a typology that gives enough information on the team and is user-friendly. If there could grow a consensus on the use of such a typology, it would become easier to look up all the relevant findings in the academic studies on teamwork for a certain context. Until now, we only looked at the dimensions and variables which are used to develop team typologies. In most studies this only considers the independent variable in an effect model. A different and complementary approach is looking from the other side: is there also a dependent variable in the study? What is the focus of the team typology? Why does the author make a difference between teams? In other words, what is the purpose that the team typology is build for? This focus of team typologies varies. Some studies want to assess the impact of the type of team on team performance. Others want to asses the impact of the type of team on individual knowledge development or personal job satisfaction. Our interest is on team typologies that focus on team performance in general. Can teams be categorized to team types that differ on certain team characteristics in their reaching for optimal performance? Because team effectiveness is our focus, we will continue working with the team typologies that were used to study team performance. Team performance, as we define it, can be measured as performance outcomes at the operational (productivity, flexibility, innovation) and financial 11 level (profit, liquidity, costs), as well as the attitudinal (motivation, commitment, satisfaction) or behavioural level (absenteeism, turnover). Although most of the articles of our review present a one-dimensional team typology, we found some which combined different dimensions. Mohrman et al (1995) for example, use two additional categorization grounds, namely the relationship of the team to the formal structure and the duration of the team. Combining different dimensions in an integrative typology is the strategy that we will follow here as well, since we believe this is the only possible way to give adequate descriptions of teams. With such a combination or integrative model, we want to facilitate the assessment of teams that differ on some variables which have an influence on team effectiveness. For this integrative team typology, we brought together the four dimensions that formed the structure of our literature review, in a multi-dimensional typology. For each dimension, we selected some crucial variables and developed different types, which should be exhaustive and exclusive. This implies that we made choices, to receive a parsimonious model. The first step in identifying a team in our typology is related to the nature of the team task or the mission, because this already partially can determine the score of a team on the next dimensions. We distinguish 5 categories of teams on the basis of the nature of the team task. The first category refers to operational teams. These teams are continuing work units responsible for producing goods or providing services to internal or external customers. In literature they are also called work teams (Mohrman et al., 1995; Cohen & Bailey, 1997). Within this group, we make a sub-classification of knowledge work versus routine work. The second team category refers to management teams. These are teams that are responsible for coordinating the management of a number of subunits that are interdependent in the accomplishment of a collective output, such as an entire process or product. Their main task is to give direction to other persons and managing the capabilities and performance of a unit based on goals and policy. The third team category refers to project teams. These are teams that produce one-time output and exist a limited time, because if the team has taken care of this task, the team will be dismissed. The fourth category refers to co-ordination teams. They are established to make sure the work across various parts of the organization fits together, but their power does not stem from hierarchy. And finally the fifth category refers to specialist teams. These teams are established to exchange and develop knowledge among colleagues from different work units or jobs 12 The second step in our model to identify different types of teams is concerned about the structure of the team. Three variables are crucial in defining the structure of the team: the task design, the degree of autonomy in the team and the degree of interdependency within the team. According to Doorewaard et al. (2000), we consider the nature of the division of responsibilities and the variety of the job regulation tasks as crucial variables to indicate the task design and the degree of autonomy in a team. The first has to do with the role of the team leader: is there a formal leader position, what are his or her tasks, is there delegation to the executing team members? The second, variety of the job regulation tasks, refers to the width of the decision latitude for the team. If the regulation tasks are restricted, we speak of a small task variety. If a team can decide itself on aspects of their tasks (division, order, method,…), the task variety is called medium. Only if the team is authorized to decide on extended aspects such as selecting and hiring new members, controlling the budget or regulating breaks and holiday periods, the task variety is considered to be broad. The third criterion we added to determine the team structure, is the degree of interdependency within the team. When the interdependency is high, the team members are in their functioning dependent of the work of the other team members and performance is the result of the common efforts. The interdependency is low if the team members can do their individual task within the team, without taking into account the work of the others. When we know why a team exists (mission) and how it is organized (structure), we arrive at the third step in identifying the team type. Therefore the team maturity is assessed. Focus is needed on the competences a team needs to perform well. Three aspects are important here: knowledge, skills and attitude. The last includes competences such as learning capacity, adaptability, connection and result orientedness. It’s important to note that the necessary competences have to be obtained at the team level. Concerning skills for example, it is often not appropriate that every team member learns every operation which is done in the team. ‘Everyone has to know or to be able to do everything in a team’ is not a good device. What matters is ‘Can we do it as a team?’. We discern three stages with regard to the competence level of a team: a starting up team, a potential team or a fully functional team. Again, we want to emphasize that this should not be considered as an irreversible evolution, but that during the existence of a team relapses or leaps are possible. 13 Finally we arrive at the fourth step in identifying the team type. Focus is shifted from the team to the team members. In this last step, the diversity of the team functions as a classification ground. Most authors who work with this kind of typology, distinguish two groups of characteristics which can be looked at. The first group refers to personal features (also called relations oriented, surface level, observable or less job-related attributes) such as age, gender, race. The second group is twofold: sometimes it stands for job-related characteristics (education, function, occupation, knowledge, skills) and sometimes it stands for more underlying (also called deep level) attributes such as values, satisfaction or commitment. We decided to work with a dichotomy as well and to discern two groups of characteristics, jobrelated and relations-oriented features, which both can be homogeneous or heterogeneous among the members of a team. This integrative model should be considered as a decision tree. If academics do research on work groups and want to test certain hypotheses by collecting empirical data, they can make it very clear to fellow researchers, practitioners and all the interested readers which type of teams that were involved in the study. For each of the four dimensions, the team needs to be scored, which results in a clear label of this type: a project team, with shared responsibilities, medium task variety and low interdependency, that is fully functional and heterogeneous. 14 Table 5 Integrative team typology MISSION Variables: Team task STRUCTURE Variables: - nature of division of responsibilities - variety of job regulation tasks - interdependency within the team MATURITY Variables: Team competences (at the team level) knowledge, skills, attitude DIVERSITY Variables: - relations-oriented characteristics - job-related characteristics Operational teams Knowledge Routine Management teams Project teams Coordination teams Hierarchical teams Shared responsibility teams Small task variety Homogeneous team Broad task variety Medium task variety Low interdependency Starting up team Specialist teams High interdependency Potential team Heterogeneous on relations-oriented Homogeneous on jobrelated Homogeneous on relations-oriented Heterogeneous on jobrelated Fully functional team Heterogenous team 15 Conclusions In this article, we have attempted to come to an integrative model for classifying team types. The conceptual framework offered here was designed for two reasons. The first is to build a bridge between team types recognized in research and in practice, in order to make findings more easily applicable in concrete settings. The second reason is to streamline team research from now on by encouraging the use of one common team typology, which can make findings on the link between teamwork and performance more easily interpretable. From our literature review on team typologies we conclude that most authors work with an unidimensional team typology. A majority only focuses on the mission of the team or on the structural features. However, to facilitate a proper classification of teams by practitioners as well as academics, combining several team dimensions in a step-by-step method of categorizing teams could be a better strategy. This is what we worked out in this article, by developing an integrative model. Although we combined the four general dimensions which appear from the literature, we have to recognize that the presented model only should be considered as one possible example of an integrative model. For each of the four dimensions, we constructed the different categories which results in a kind of decision tree. The number of the categories and the labels for the types emanate from the reviewing work and the analyzing of the existing team typologies. Further research can aim to refine these and to work towards more exhaustiveness and exclusiveness. By emphasizing the need for more accurate team typologies and especially more adequate information on the typologies that are used, we hope that both communities of academics and practitioners can be stimulated by our model. As a team is not just a ‘team’, but a very specific reality with different effects on various outcome variables, it is crucial to include a clear passport of the team in research reports of academic articles. 16 References Ancona, D.G., Goodman, P.S., Lawrence, B.S. & Tushman, M.L. (2001). Time: a new research lens, Academy of Management Review, 26(4), 645-663. Ancona, D.G. & Caldwell, D.F. (1992). Demography and design: predictors of new product team performance. Orgnaization Science, 3(3), 321-341. Antoni, C. (2004). Teams in organizations - Recent research and open questions. Paper presented at the 8th International Workshop On Teamworking, September 16-17th, University of Trier, Germany. Appelbaum, E., Bailey, T., Berg, P. & Kalleberg, A.L (2000). Manufacturing Advantage. Why high-performance work systems pay off. New York: Cornell University Press. Bacon, N. & Blyton, P. (2000). High road and low road teamworking: Perceptions of management rationales and organizational and human resource outcomes. Human Relations, 53(11), 1425-1458. Bailey, K.D. (1994). Typologies and Taxonomies. An Introduction to Classification Techniques. Thousand Oaks, California: Sage Publications. Banker, R.D., Field, J.M., Schroeder, R.G. & Sinha, K.K. (1996). Impact of work teams on manufacturing performance: a longitudinal field study. Academy of Management Journal, 39(4), 867-890. Bell, B.S. & Kozlowski, S.W. (2002). A Typology of Virtual Teams: Implications For Effective Leadership. Group & Organization Management, 27(1), 14-50. Benders, J., Huijgen, F., Pekruhl, U. & O’Kelly, K.P. (1999). Useful but Unused Group Work in Europe. Findings from the EPOC Survey. Dublin: European Foundation for the Improvement of Living and Working Conditions. Benders, J. & Van Hootegem, G. (1999). Teams and their context: moving the team discussion beyond existing dichotomies. Journal of Management Studies, 26(5), 609628. Berggren, C. (1993). The Volvo Experience; Alternatives to Lean Production in the Swedish Auto Industry. Basingstoke: Macmillan. Campion, M.A., Medsker, G.J. & Higgs, A.C. (1993). Relations between work group characteristics and effectiveness: implications for designing effective work groups. Personnel Psychology, 46(4), 823-850. Cohen, S.G. & Bailey, D.E. (1997). What makes teams work: Group effectiveness research from the shop floor to the executive suite. Journal of Management, 23(3), 239-290. 17 Cohen, S.G. & Ledford, G.E. (1994). The effectiveness of self-managing teams: A quasiexperiment. Human Relations, 47(1), 13-43. Cannon-Bowers, J.A., Tannenbaum, S.I., Salas, E., & Volpe, C.E.. (1995). Defining competencies and establishing team training requirements. In: R. Guzzo & E. Salas (Eds.). Team effectiveness and descision making in organizations (pp. 333-380). San Francisco: Jossey Bass. Delarue, A., Van Hootegem, G., Huys, R. & Gryp, S. (2004). Werkt teamwerk? Leuven: Acco. Delarue, A., Van Hootegem, G., Procter, S. & Burridge M. (2004). Teamwork effectiveness research revisited. Paper presented at the 8th International Workshop On Teamworking, September 16th-17th, Trier, Germany. De Sitter, L.U. (1994). Synergetisch produceren. Human resources mobilisation in de productie: een inleiding in de structuurbouw. Assen: Van Gorcum. Devine, D., Clayton, L., Philips, J.L., Dunford, B.B. & Melner, S.B. (1999). Teams in Organizations: Prevalence, characteristics and effectiveness. Small Group Research, 30(6), 678-712. Devine, D. J. (2002). A review and integration of classification systems relevant to teams in organizations. Group Dynamics: Theory, Research and Practice, 6, 291-310. Doorewaard, H., Huys, R. & Van Hootegem, G. (2002). Team responsibility structure and team performance. Personnel Review, 31(3), 356-370. Dunphy, D. & Bryant, B. (1996). Teams: Panaceas or Prescriptions for Improved Performance?. Human Relations, 49(5), 677-699. Glassop, L.I. (2002). The organizational benefits of teams. Human Relations, 55(2), 225-249. Hackman, J. R. (ed.) (1990). Groups that work and those tat don’t: creating conditions for effective teamwork. San Francisco: Jossey-Bass. Hackman, J.R. & Oldham, G.R. (1975). Development of the job diagnostic survey. In Journal of Applied Psychology, 60, 159-170. Harrison, D.A., Price, K.H. & Bell, M.P. (1998). Beyond relational demography: time and the effects of surface- and deep-level diversity on work group cohesion. Academy of Management Journal, 41(1), 96-107. Jackson, S.E. (1996). The consequences of diversity in multidisciplinary work teams. In: M.A. West (Ed.), Handbook of Work Group Psychology (pp.53-75). Chichester: John Wiley & Sons. 18 Jürgens, U. (1992). `Lean Production in Japan: mythos und realität’. In: Hans Böckler Stiftung/ Industriegewerkschaft Metall (Ed.), Lean Production; Kern einer neuen Unternehmenskultur und einer innovativen und sozialen Arbeitsorganisation? BadenBaden: Nomos Verlagsgesellschaft, 25-34. Katzenbach, J.R. & Smith, D.K. (1993). The discipline of teams. Harvard Business Review, March-April, 111-120. Kuipers, B. (2005). Team Development and Team Performance. Responsibilities, Responsiveness and Results; A longitudinal Study of Teamwork at Volvo Trucks Umea. Ridderkerk: Labyrint Publications. Mayo, M., Pastor, J.C. & Meindl, J.R. (1996). The effects of group heterogeneity on the selfperceived efficacity of group leaders. Leadership Quarterly, 7(2), 265-284. McGrath, J., & O'Connor, K.M. (1996) Temporal issues in work groups. In: M.A. West (Ed.), Handbook of Work Group Psychology (pp. 22-52). Chichester: John Wiley & Sons. Milliken, F.J. & Martins, L.L. (1996). Searching for common threads: understanding the multiple effects of diversity in organizational groups. Academy of Management Review, 21(2), 402-433. Mohrman, S. A., Cohen, S. G., & Mohrman, A.M. (1995). Designing Team-based Organizations: New forms for Knowledge Work. San Francisco: Jossey-Bass. Pasmore, W. (1988). Designing Effective Organizations: The Sociotechnical Systems perspective. Chichester, UK: John Wiley & Sons. Recardo, R. & Jolly J. (1997). Organizational culture and teams. SAM, Advanced Management Journal, Spring 1997 (PEM, 13, 1997/4). Sundstrom, E., DeMeuse, K & Futrell D. (1990). Workteams: Application & effectiveness. American Psychologist, 45, 120-133. Thompson, J.D. (1967). Organizations in action. New York: McGrawhill. Van Amelsvoort, P., Seinen, B., Kommers, H. & Scholtes, G. (2003). Zelfsturende teams. Ontwerpen, invoeren en begeleiden. Vlijmen: ST-Groep. Van Amelsvoort, P. & Benders, J. (1996). Team Time: A model for developing self-directed work teams. International Journal of Operations and Production Management, 16(2), 159-171. Van Amelsvoort, P. & Scholtes, G. (1994). Zelfsturende teams: Ontwerpen, invoeren en begeleiden. Oss: ST-Groep. 19 Webber, S.S. & Donahue, L.M. (2001). Impact of highly and less job-related diversity on work group cohesion and performance: a meta-analysis. Journal of Management, 27, 141-162. Webber, S.S. & Klimoski, R.J. (2004). Crews: a distinct type of work team. Journal of Business and Psychology, 18(3), p.261. West M.A. (1996). Reflexivity and work group effectiveness: a conceptual integration. In: M.A. West (Ed.) Handbook of Workgroup Psychology (Chapter 22). Chichester: John Wiley & Sons. West, M.A., Borril, C.S. & Unsworth, K.L. (1998). Team effectiveness in Organizations. Sheffield, England. 20