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    This article was downloaded by: [Monash University Library]On: 12 March 2013, At: 01:40Publisher: RoutledgeInforma Ltd Registered in England and Wales Registered Number: 1072954Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK

    Total Quality ManagementPublication details, including instructions for authors andsubscription information:

    http://www.tandfonline.com/loi/ctqm19

    Theories and concepts in total

    quality managementJohn A. Dotchin

    a & John S. Oakland

    a

    a European Centre for TQM, University of Bradford,

    Management Centre, Emm Lane, Bradford, West Yorkshire,

    BD9 4JL, UK

    Version of record first published: 28 Jul 2006.

    To cite this article: John A. Dotchin & John S. Oakland (1992): Theories and concepts in total

    quality management, Total Quality Management, 3:2, 133-146

    To link to this article: http://dx.doi.org/10.1080/09544129200000015

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    This article may be used for research, teaching, and private study purposes. Anysubstantial or systematic reproduction, redistribution, reselling, loan, sub-licensing,systematic supply, or distribution in any form to anyone is expressly forbidden.

    The publisher does not give any warranty express or implied or make anyrepresentation that the contents will be complete or accurate or up to date. Theaccuracy of any instructions, formulae, and drug doses should be independentlyverified with primary sources. The publisher shall not be liable for any loss, actions,claims, proceedings, demand, or costs or damages whatsoever or howsoever causedarising directly or indirectly in connection with or arising out of the use of thismaterial.

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    TOT AL QUALITY MANAGEMENT, VOL. 3, NO. 2,1992

    Theories and concepts in total quality

    management

    JOHN A DOTCHIN

    JOHN

    S OAKLAND

    European Centrefor T Q M Universi ty of Bradford Management Centre Emm Lane

    Bradford We st Yorkshire BD9 4 J L

    U

    Abstract Th is paper uses a review of the literature to examine qua lity as a concept an d in the

    context of providing a n operational understanding. T Q M is presented as holistic approach

    which requires customer orientation empowered people atten tion to the process ag oo d qua lity

    system and continuous imp rove me nt. Th e concepts theories and components are assembled into

    a new model for T Q M .

    Introduction

    An examination of the ANBAR abstracting service for the 17 years up to an including 1988

    shows that there has been an increase of more than six times in the number of papers

    classified under quality , from 22 in 1971-72, to 134 in 1988-89. As can be seen in Fig. 1,

    most of the increase has occurred since 1979, vol. 8, and is in the classification concerned

    with production, rather than the non-production category. Th is indication of the growth

    in the number of papers dealing with the subject corresponds with the increase in quality

    awareness commented on by Juran (1988) and which he attributes to initiatives taken by

    many companies in the early 1980s, in response to what amounted to a quality crisis for

    many U S manufacturing companies faced with competition from Japan.

    The literature offers many recommendations for implementing total quality, and

    principles for management. Different authors place their individual emphases, and it

    might be inferred that substantially different philosophies are being represented. A more

    careful analysis, however, reveals surprisingly similar content. I t is possible to recognize

    the influence of Feigenbaurn (1956), Juran (1964), Crosby (1979), and Deming (1982), to a

    variable extent, in many subsequent works.

    Many of the tools used in total quality management (TQM) have rigorous theoretical

    background and are proven empirically, for example, many of the techniques and procedures

    incorporated in statistical quality control (Shewhart, 1931), or more recently statistical

    process control (Oakland Followell, 1990). In sharp contrast, there is little published

    research on other aspects, especially about the integration of the whole. Although most of

    the little available empirical work is inconclusive, in general it tends to support the views

    propounded by the acknowledged authorities (Garvin, 1988; Saraph

    et al.

    1989).

    Quality as a concept

    Scholars face many problems when defining quality as an economic as opposed to a

    transcendent concept. Th e difficulties it seems apply equally to goods and to services. In

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    134

    JOHN A DOTCHIN JOHN

    S

    OAKLAND

    1 2 3 4 6

    7

    8

    9 10

    11 12 13 14 15 16

    7

    18

    Vol 1

    =

    1971 Vol 18

    =

    1989

    -

    Prodn.

    c

    Non Prodn.

    igure 1

    A N B A R Abstracts classed as quality of production 3 .5 1 ) and quality non-production) 2 .5 8 )

    1968, Edwards used the definition quality is the capacity of a commodity or service to

    satisfy human wants . He noted that human wants are complex, and may not always be

    satisfied in a particular way, users of products make a personal assessment of quality. Each

    case will be influenced by how well numerous aspects of performance are able to provide

    satisfaction of multiple wants and further distinguished by the subjective importance

    attached by the individual.

    For many products, judgements must be made over their useful life, and reliability

    and ease of maintenance must be taken into account. Another aspect of time and quality

    was given almost 60 years ago by Shewhart (1931) who drew attention to the particular

    difficulty of knowing and measuring what consumers will consider to be acceptable quality

    in the future. Townsend Gebhart (1986) separted quality of perception , as seen sub-

    jectively by the customer, from quality of fact , or performing to the standard which has

    been set. Both need to be recognized and two of the most frequently repeated definitions of

    quality, provided by Juran and by Crosby, illustrate this. Juran (1974) referred to quality

    being fitness for purpose . judged by the user, not manufacturer, merchant, or repair-

    man .

    A

    different but equally important emphasis was given by Crosby (1979) who defined

    quality as conformance to requirements, not elegance .

    These definitions are not mutually exclusive, as they may at first seem, but apply in

    different contexts. What the two definitions have in common is (1) powerful simplification

    of the concept and

    2)

    they are memorable.

    Both definitions have passed into general use and have even stimulated argument and

    disagreement (Crosby, 1989). Some of this popular acceptance is because of implicit as

    well as explicit meaning.

    The strength of assumed meaning and implication, can create problems of under-

    standing, however. For example, the word conformance has strong desirable associ-

    ations in the manufacturing function of a company, but may be anathema in the design

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    THEORIES ND

    CONCEPTS IN

    TQM

    135

    department of a firm making a product with a strong fashion element. Groocock (1986),

    discussing this problem, pointed out that short messages can easily be misinterpreted

    because of the wealth of implication that they carry. This was further supported by

    research at AT T (Lader Alexander, 1988) which found that some messages, intended

    to motivate for quality, have the opposite effect and stimulate negative feelings. Hence, the

    words chosen to define and explain quality should be selected with careful attention to the

    collective experience of the group concerned.

    Quality in context

    n

    explanation of why quality should have different meanings in different contexts was

    given by Garvin (1984,1988) by a recognition of five approaches:

    transcendent or innate excellence;

    product-based or the amount of a desirable attribute which is present;

    user-based in the context of fitness for use;

    manufacturing-based or conformance to specification;

    value-based or satisfaction relative to price.

    Garvin argued that these meanings can co-exist. Furthermore, it is necessary to

    change the approach taken towards quality from user-based to product-based, as products

    move through market research to design; and then from product-based to manufacturing-

    based, as they go from design into manufacture. He also noted that it may be necessary to

    give quality different meanings in different industries.

    This was partially explained by Cullen Hollingham's (1988) assertion that total

    quality, unlike a piece of equipment, cannot be purchased but 'must be developed in the

    minds of everyone in the organization'. That Ford, after several years of quality improve-

    ment experience, have recently changed from using a 'conformance to requirement'

    definition of quality to one which places more emphasis on customer, reliability and value,

    suggests that it is necessary to be prepared to redefine quality in response to external

    influences, and as organizational learning allows and dictates.The conclusion that may be

    drawn from the above is that although quality, being the ability of products, goods and

    services to satisfy human requirements, may have universal truth, it is also necessary to

    have a more detailed expression of the meaning of quality in the context of the following:

    (1)

    the particular organization;

    (2)

    specific activities and functions within the organization;

    3)

    the state of maturity and experience of the group(s) concerned.

    This is consistent with that part of Harrington's (1987) recommendations for

    improving quality in organizations, which suggests the need for first developing a common

    understanding that is relevant to the enterprise as a whole, and then proceeding to refine

    the meaning in functions, departments and work groups.

    eed for an operational understanding of quality

    Deming (1982, 1986) has succinctly observed that the concept is only the beginning of

    meaning, since 'concepts are ineffable. he only communicable meaning is the record of

    what happens on application'. In deciding what dimensions might be used to record the

    'application' of quality, several of the models and structures described in the literature

    have been considered. Some of these are listed in Table 1.

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    136

    JOHN A. DOTCHIN JOHN

    S

    OAKLAND

    able 1 Selected q uality tnodels

    Ishikawa (CWQC) 1985 All functions, all employees, continuous improvement, customer

    orientation

    Juran 1986189 Planning, control, improvement

    Snee 1986 Philosophy, control, improvement

    Hoernschemeyer 1989 Context, barr ier removal, empowering people, communication

    Oakland 1989 Management , system, teamwork, tools

    Shores 1989 Customer, management, participation, systematic analysis

    Saraph er al

    1989

    Management leadership, quality department, training, design, supplier

    management, process management, process control, data and reporting,

    employee relations

    As most quality recommendations have evolved through work in the manufacturing

    sectors (Garvin, 1988), and since none of the models summarized in Table 1 is considered

    to be more appropriate than any other in respect of service quality, T Q M is here discussed

    under six headings borrowed from several of the models.

    otal quality management is holistic

    Writing about the approach taken by Deming, Gabor (1988) observed that T Q M is holistic

    in that it can only be conceived if it includes all the functions in the organization, all the

    people who work there, and all the other organizations and individuals supplying and

    receiving goods and services. This must not suggest an overview, however, since it also

    requires attention to and understanding of the detailed operation of all processes and

    functions (Deming, 1982).

    The term Total Quality Control was used by Feigenbaum in 1956 to emphasize that

    quality control cannot be achieved by concentration on just the production function since

    quality is determined at all stages in the industrial cycle, and the early stages, such as

    design, have the most influence. Oakland (1989) has built on this and added that T Q M

    enables every part of the organization to work towards the same goal. In a similar vein,

    Ishikawa (1985) asserted the need for cross-functional management in the form of steering

    committees and councils, to overcome sectionalism.

    The representation of production as a system , used by Deming in Japan in 1950

    (Deming, 1982, 1986) to show how improvement envelopes the entire operation, was

    restated by Scholes Hacquebord (1988) as the alternative to a chain of command view of

    organization. Functions recognize internal supplier-customer relationships (Oakland,

    1989), with the next process being the customer (Ishikawa, 1985). Not only should all

    functions be involved in TQM, but so also should all the people in the organization.

    Everyone needs to know what their job is and how it fits into the system if quality is to be

    achieved (Ishikawa, 1985). This applies to all tasks, and to all levels in the organization

    (Endosomwan, 1988).

    The scope of total quality not only extends beyond operations to the other functions

    within the organization, it also involves knowledge and understanding of suppliers and

    their suppliers, and customers and their customers (Oakland, 1989). Several authorities

    place emphasis on the way firms must work with suppliers, co-operating to prevent defects

    through better understanding of respective processes and requirements (Deming, 1982,

    1986; Juran, 1974; Ishikawa, 1985; Oakland, 1989). Product improvements are often also

    dependent upon technological advances by suppliers of materials, and their supplier

    (Price, 1984). Some organizations have reported benefits by encouraging contacts with

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    THEORIES ND CONCEPTS IN TQ 137

    customers and suppliers at several levels, and including the operators in this (Doran,

    1985).

    Other organizations and lobbies, which do not have direct commercial links, also

    influence considerations of quality. The consumer movement, Government action on

    deregulation, development of national and international standards, and technological

    advances, are all examples of this. Another, and in some situations a primary influence,

    is competition. Quality as noted in the introduction, is at last being recognized as a

    strategic issue, fundamental to survival in increasingly competitive situations (Peters,

    1988; Heskett, 1986, 1987; Levitt, 1980).

    ustomer orientation

    Customer awareness and being responsive to customers requirements, is integral to TQM.

    Its importance has been stressed by most authorities.

    Conway (1988) pointed out that

    customers define quality and customer orientation is a cornerstone of several models,

    including Japanese company-wide quality control. This emphasis is needed to overcome

    the results of the process of industrialization which has tended to isolate producers from

    the customer (Juran Gryna, 1980)-an observation made in a manufacturing context but

    which can also be seen in the more mature and complex services, for example, in banks

    where there are large numbers of operators who work in the back office, not unlike those

    in a factory (Levitt, 1979; Deming, 1982,1986).

    People in direct customer contact, such as many people in the service sector, benefit

    from direct feedback (Juran Gryna, 1980). Even so, objective on-the-spot assessment of

    that feedback is not always possible. Emigh (cited in Deming, 1982) observed that service

    workers are not aware of the product (because it is intangible) and hence they may be

    unable to visualize customer satisfaction.

    In all types of organizations, it is necessary to know about customers likes, tastes and

    applications (Ishikawa, 1985). This applies to the immediate customer and the ultimate

    user (Juran Gryna, 1980). I t is insufficient to rely solely on customer complaints. Careful

    attentive listening to customers opinion is also needed (Hutchins, 1985; Kinsley, 1979;

    Deming, 1982, 1986; Marr, 1986; Desatnick, 1987; Peters, 1988; Scholes Hacquebord,

    1988). This can be through formal market research (Juran 1974), and also by creating

    opportunities for people at all levels, and in all positions in the organization, to be exposed

    to customers (Doran, 1985; Peters, 1988).

    Peters Austin (1985) found that, although executives agree that customers are of

    primary importance, very little is acted on. Marr (1986) attributed this to lack of trust in

    customer research data because they are based on subjective perceptions, and he provided

    some recommendations for making assessment more reliable; though these still rely on

    subjective customer opinion. Leading organizations are active in this field and Hauser

    (1988) gave examples of Japanese and U S companies using discussion with customers,

    focus groups and qualitative interviews throughout the product development and design

    process. These techniques, incorporated into quality function deployment (GFD)

    (Sullivan, 1988), increase the effectiveness of customer consideration.

    Even this level of customer involvement is not sufficient to determine future needs.

    The customers of banks could not have anticipated charge cards . It needed computer

    technology, investment in the network and marketing before EFTPOS (electronic

    financial transactions at point of sale) could be realized. It is often necessary to lead the

    customer into the future (Deming, 1982), but to focus creativity on the application, and

    hence the customer, rather than to rely on giant technological leaps (Peters, 1988).

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    THEORIES ND CONCEPTS I N TQM

    139

    Attention to the process

    One of the most important precepts in total quality, and a hallmark of its application in the

    Far East, was noted by Oakland (1989) as the attention paid to the detail of the process.

    Often improvements can only be achieved by involving people who have detailed knowl-

    edge of the process, or are in a position to acquire it. For example, a detailed flowchart of

    anything more than the simplest process can seldom be completed without the help of

    others (Oakland, 1989), since boundaries of responsibility are crossed by nearly all

    processes in real organizations (Ishikawa, 1985).

    Standards are necessary to know if the job has been completed and determining

    methods leads naturally to standardization which is necessary for delegation of authority

    (Ishikawa, 1985). Standards used merely as a means of preventing progress must be

    avoided however (Juran, 1964). There are particular problems which apply in standardiz-

    ing some service processes because of the variation which direct customer involvement

    introduces (Morris Johnston, 1987). Nevertheless some types of services have very

    successfully applied standards. The fast food business (Levitt, 1979) provides and

    example where setting service standards has contributed to simultaneous improvement in

    efficiency and quality.

    For Deming (1982, 1986), understanding the nature of variation is essential. The

    causes of variation can be either common , and determined by the capability of the system,

    or special (Shewhart used random and assignable ), and can be attributed to some

    special event. Failure to distinguish one from the other will result in inappropriate adjust-

    ment actually increasing variability. system is only manageable when it is in statistical

    control, because then it is possible to predict output and measure the effect of changes.

    Applying this in some parts of service organizations may prove difficult, because of the

    problem of setting standards when customers are present during the operation, and

    because of the difficulty in measuring multiple, intangible attributes.

    T o clarify the relationship between cause and effect and to identify the factors which

    hinder smooth functioning of the process, analysis using seven simple tools is adequate in

    the majority of cases (Ishikawa, 1985). These are flowcharts, tally graphs, histograms,

    Pareto analysis, scatter diagrams, Ishikawa (cause and effect) diagrams and control charts.

    Most writers agree that statistical process control (SPC) is a key tool for the manage-

    ment of processes (Deming, 1982; Oakland Followell, 1990; Endosomwan, 1988). Juran

    and others wisely caution against any approach to quality driven only by technique. There

    are numerous examples of SPC being used in manufacturing and some in other situations.

    Deming gives many examples of what might be studied with statistics in service industries,

    but does not include the less tangible process which, according to Morris Johnston

    (1987), are key differences between service and manufacture.

    Difficulties with service processes compared with manufacturing processes were

    summarized by Endosomwan (1988) as follows:

    (1) more difficult to define ownership, measurement, cycle times, customers and

    boundaries;

    2)

    both inputs and outputs are less tangible;

    (3)

    more difficult to quantify;

    (4) less well established;

    (5) less repetition.

    Williams Zigli (1987) suggested that further research is needed into the application

    of multivariate methods to produce information for the control of service processes. They

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    140

    JOH N A DOT CHI N JOH N S OAKL AND

    further suggested that operations research techniques like fuzzy set theory, and goal

    programming, which can be useful in dealing with ambiguous and subjective information,

    may also provide insights when applied to the problems of process improvement in

    services.

    uality systems

    Juran (1988) has stated that strategic planning for quality requires a corporate infra-

    structure, in a structure, in a similar way to strategic business planning. Many other

    authorities also place stress on the need for a system so that, '. . . human, administrative

    and technical factors affecting quality will be under control (Oakland, 1989). Oakland

    also explained that, in practice, gaining control takes the form of Quality Management

    Systems which are used to ensure that the customer s requirements and the organization s

    requirements can be met. These systems are established within the context of the organiz-

    ation s quality policy and structure, and will incorporate a plan for achieving quality of

    each product or service and be documented in a quality manual setting out the procedures

    and practices in appropriate detail.

    Oakland (1989) described how international and company standards, such as I S 0

    9000 and Ford s Q l , provide a template for systems which can be used by organizations as

    the stimuli to examine their activities, record what they actually do, and provide the basis

    for standardization and improvement. This involves setting policy, developing quality

    manuals, a quality information recording and analysis system, quality plans, and providing

    for quality system checks by audit, survey and review.

    Although Ishikawa (1985) recognized the role played by national standards in his

    country s economic recovery, he also cautioned against self satisfaction having achieved

    the standard, and stressed the need for continuous improvement. Deming (1986)

    reminded us that systems are not universally regarded as a positive factor since, to the

    production worker, historically the system is mostly repressive. This suggests that sys-

    tems, although necessary, should not be allowed to dictate, or be thought of as justification

    for action or inaction of their own merit . Rather, according to Deming, systems must be

    subordinate to, and supportive of, the organization s objectives.

    There is the mistaken belief in some organizations that performance, as reflected in

    terms of output figures, return on investment, etc., is separate from quality issues. Thi s has

    been blamed on specialization (Juran, 1988), perhaps resulting from wide adoption of

    Taylor s scientific management methods. Possibly the most persistent reason for this

    misconception is constant reinforcement by the actions of senior managers to override

    quality policies and standards in the interest of other priorities. In these circumstances

    there is a need for a quality function with equivalent standing to other functions. Crosby

    (1979) and Harrington (1987) have recommended the use of a procedure of corrective

    action in which quality problems are escalated to successively higher levels in the manage-

    ment and quality function with the two parties acting in equality to resolve the issues

    within the limits of their responsibility.

    In Japan, where there are few quality specialists (Ishikawa, 1985), procedure is

    implicit as well as explicit, and works effectively because in many of the major organiz-

    ations lifetime employment ensures common understanding and shared values (Ouchi,

    1981). Th is does not mean that attention to quality manuals, plans and records, etc. are

    unnecessary in any circumstances, but that the responsibility can rest with either a quality

    function, which is the usual method in manufacturing in Europe and the USA, or with the

    direct operational function concerned, as is practised in Japan. Notably, even in Japan,

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    THEORIES

    ND

    ON EPTS IN TQM 141

    sectional interests need to be balanced and senior level cross-functional councils are used

    (Ishikawa, 1985). These are similar to steering committees which have been proposed

    by Crosby and Harrington and which have been adopted by Western organizations

    attempting to improve and maintain quality.

    Garvin (1988) noted that when T Q M is achieved in an organization, quality is part of

    every job description and the quality function can be performed by a small professional

    group able to advise at all levels and provide strategic input to business decisions.

    Continuous improvement

    The idea of continuous improvement is a cornerstone of the Deming philosophy as

    practised in Japanese companies for many years. Quality should not be portrayed as a

    programme with a definite end-point, but as a process. Crosby s 14-point plan for quality

    improvement has, Do it over again , as the final point, to emphasize this aspect and also

    recommends the use of novel projects to maintain interest among managers. He demands

    improvement towards a standard of zero-defects , as opposed to a limit dictated by

    economics.

    Juran proposed annual improvement targets and project-by-project improvement

    which are similar but, in contrast to Crosby, recognized an economic minimum, i.e. a point

    beyond which it would be wasteful to expend more effort. Price (1984) dismisses this as the

    mathematics of mediocrity . The apparent conflict between authorities concerning the

    economics, and the principal, of continuous improvement, can be explained by noting that

    economic trade-offs will exist, but only if external conditions are held constant. In practice,

    it is never possible to hold constant conditions over an extended period of time since the

    market and technology intervene. All the systems with which organizations are concerned

    are open systems and, unlike closed systems which settle inevitably to an equilibrium,

    open systems adopt different states dependent upon the input conditions (Pall, 1987).

    Hence, today s minimum is tomorrow s suboptimum and continuous improvement is

    required.

    Deming uses the Shewhart cycle to illustrate continuous improvement. Continuation

    of the cycle leads to a helix of improvement which is central to TQM.

    Assembling the concepts theories and componente a new model for

    TQM

    In this paper definitions have been reviewed and we find that quality is most usefully

    expressed in terms of an ability to satisfy customer requirements. It is also apparent that

    quality should be defined in the organizational context.

    We have also seen that T Q M involves the entire organization: all people, all functions,

    and including external organizations, such as suppliers. The several facets of TQ M have

    been reviewed, including the following:

    recognizing customers and discovering their needs;

    setting standards which are consistent with customer requirements;

    controlling processes and improving their capability;

    establishing systems for quality;

    management s responsibility for setting quality policy, providing motivation

    through leadership, and equipping people to achieve quality;

    empowerment of people at all levels in the organization to act for quality

    improvement

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    142

    J O H N A DOT CHI N JOHN S OAKLAND

    The task of implementing T Q M can be daunting and the chief executive and directors

    faced with it may become confused and irritated by the proliferation of theories and

    packages. A synthesis, and at the same time simplification, is required. Dominant within

    T Q M must be customer-supplier interfaces, both internally and externally, which are

    linked by operational processes converting inputs to outputs. A first step is commitment to

    building in quality by management of the inputs.

    How can we help senior managers and directors know what needs to be done to

    implement T Q M and to become committed to quality? Drawing on the words of wisdom

    in management and leadership of the so-called gurus which many organizations are using

    to establish a policy based on quality we have distilled

    10

    points for senior management to

    adopt. Their sources will be clear to those well read in the field.

    T he organization needs long term commitment to constant improvement.

    T he philosophy of zero errorsldefects must be adopted to change the culture to

    right first time .

    Train the people to understand the customer-supplier relationships.

    Do not buy on price alone-look

    t

    thc total cost.

    Recognize that improvement of the systems has to be managed.

    Adopt modern methods of supervision and training-eliminate fear.

    Eliminate barriers between departments by managing the process-improve

    communications and teamwork.

    Eliminate

    -goals without methods

    -work standards based only on numbers

    -barriers to pride of workmanship and

    -fiction, get facts by using the correct tools.

    Constantly educate and retrain-develop experts and gurus .

    Develop a systematic approach

    to

    manage the implementation of TQ M .

    These can be factored into soft and hard outcomes of T Q M . T he soft outcomes form

    the basis of our model (Fig. 2).

    Identify customer-supplier relationships

    Manage processes

    Culture

    Communications

    Commitment

    T he process core must also be surrounded by some hard management necessities

    -Systems (based on good international standard),

    -Teams (the councils, quality improvement teams, quality circles, corrective action

    teams, etc.) and

    -Tools (for analysis, correlations, and predictions for action for continuous

    improvement to be taken).

    The model (Fig. 3 now provides a three-dimensional T Q M vision against which a

    particular company s status can be examined, or against which a particular approach to

    T Q M implementaiton may be compared and weakness highlighted.

    Comparison with some of the models summarized in Table 1 shows that several

    elements are in common, apart from semantic differences. Some other features of T Q M are

    also present by implication. For example, Planning and Control is a necessary element

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    Figure

    2 Foundations for

    the T Q M

    model

    O M M I T M E N T

    Figure 3 T Q M model

    within all the spheres. Similarly many of the tools used to identify and resolve problems

    are relevant to customer and people aspects of quality management just as they are to the

    processes.

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    We hope this conceptualization will help in understanding the differences of opinion

    and approach referred to at the beginning of the paper and which are apparent in the

    literature.

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    THEORIES

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