Improving productivity of automated tissue converting lines: an empirical model and a case study

This study is focused on minor stoppages as sources of variance within automated production lines in industrial environments, and it suggests the handling of the problem through a combined phenomenon–mechanism analysis and simulation approach. The resulting seven-step methodological pattern has been applied to a real-life case study of a tissue converting line: the product type and the machine speed have been identified as causal factors for minor stoppages and the wrapper machine has been chosen to exemplify the methodology.

Results point out that the speed of the wrapping machine–which allows the daily throughput of line to be maximized–changes when products change, thus highlighting a trade off between minor stoppages and wrapper speed. However, in some other cases, minor stoppages are more detrimental than the machine speed is useful.     

Selection of a Computerised Maintenance Management System: a case study in a regional health service

The selection of a Computerised Maintenance Management System (CMMS) is a strategic decision in any industry. In hospitals such systems are becoming increasingly necessary because of the high proportion of the budget allocated to the maintenance area and the increasing demand for quality from both health-care professionals and patients. The aim of this study is to propose a more satisfactory CMMS selection process. The process uses a decision-making model based on the use of the multicriteria technique ELECTRE II in two stages. First, the software suppliers that can guarantee a successful implementation of the CMMS are selected. Then, the CMMS that best meets the organisation's needs and requirements is selected. To demonstrate the process, the authors present a case study of the selection process in a Spanish regional health service. Finally, a discussion of the influence of the public health-care environment on the final decision is offered.     

Integration of the information systems in the production process: a case study

This paper evaluates the execution of an ERP – enterprise resource planning in a production process. The changes that were made to processes to make them compatible with ERP modules and adaptations that were required by the ERP implementation are presented. The presented study is different from the normal patterns of a vertical implementation, since its application is not direct. In order to use the standard modules of the ERP system, the internal processes were embellished and the data collection steps were integrated into the production process (production orders, inventory, production, daily consumption, daily output). The case study shows that the ERP implementation caused an improvement of the processes in the areas adjacent to production (purchasing, logistics, distribution, supply and sales). In conclusion, this paper presents the main advantages and disadvantages of the ERP system implementation, as well as some considerations and recommendations for the future ERP implementations.     

Investigating the use of information technology in managing innovation: A case study from a university technology transfer office

This study investigates the use of information technology to manage innovation. It is based on a case study on the adoption of an innovation application, which provides an interface between R&D, marketing and administration functions of innovation development. Drawing on qualitative evidence including a focus group and 16 in-depth interviews, this study contributes by integrating technology acceptance constructs to innovation process performance and marketing literature, as well as by investigating technology acceptance in an innovation context. Implications are discussed for organizations engaged with R&D or innovation process management and suggestions for research directions are offered.     

Linking hybrid systems to ACD models: a case study in the fibre-glass industry

This paper is aimed at formalising and testing a model for hybrid systems where the interactions between the continuous process parts and the manufacturing sub-systems are given by minor stoppages. The proposed approach consists in representing the effects of the continuous process dynamics on discrete manufacturing sub-systems by means of autoregressive conditional duration (ACD) models originally conceived to treat high-frequency and irregularly spaced financial transaction data. The model has been applied to a real-life furnace and spooling-bushing department system of a fibre-glass production plant. Results conclude that the ACD-based model proved useful for representing the occurrence of fibre-glass breakage on the spooling-bushing machines and, in more general terms, that the proposed methodology could be really suitable for the logical modelling of the hybrid production systems where the relationships between the continuous and the discrete parts are given by the occurrence of minor stoppages.     

Managing the growth of electronic office information systems

Organizations, and particularly their information services departments, are facing more difficult problems as society inexorably moves into the information age. The ability of organizations to survive in the future may very well depend upon their capacity to satisfactorily cope with the pace of technological change. With the rate at which technologies such as word processors, electronic mail, personal computing, facsimile devices, private automatic branch exchanges (PABXs), voice recognition systems, intelligent copiers, to name but a few, are being introduced in organizations, well thought out information management strategies are needed. The purpose of this paper is to propose a stage theory of growth which could help organizations develop appropriate information management strategies dealing with electronic office information systems; and additionally, to underline the key role that electronic information systems may play as organizations face the problems of moving into the information age.     

Understanding information systems infrastructure in engineering SMEs: A case study

The benefits of integrated enterprise-wide information systems (IS), such as Enterprise Resource Planning (ERP) systems, are widely accepted. The implementation of such systems in large organisations is established with many in their second or third generation. However, in small to medium-sized enterprises (SMEs) the maturity and extent of their IS infrastructure is less clear. In engineering SMEs, this infrastructure needs to support not only business processes but also the activities of design and manufacture.In this case study, our goal is to provide a better understanding of current IS infrastructure, the functional elements of IS infrastructure, integration and expenditures are explored in ten engineering SMEs. A model of IS functionality is developed and used to identify and classify functional elements within the firms and to compare and contrast the IS infrastructures. The findings are contrasted with the SME literature and conclusions and implications developed.     

Flexible manufacturing systems performance in U.S. automotive manufacturing plants: a case study

Flexible manufacturing systems (FMS) philosophy is a key weapon in achieving global manufacturing competitiveness. It encompasses a wide range of dimensions to improve all aspects of operational performance metrics. The aim of the study is to examine the current state of flexibility adoption in U.S. automotive manufacturing facilities and its impact on operational performance metrics. It utilizes survey questionnaire developed based on previous work in U.S. manufacturing industry. The survey was originally distributed to 420 facility managers in the U.S. domestic automotive industry. It was revealed that 70% of the respondents had implemented all 15 flexibility dimensions listed in the questionnaire. The data analysis conducted shows that implementation of certain flexibility dimensions will lead to significant improvement in specific operational performance metrics. This considerable finding can be used as a guide for manufacturing managers to achieve certain objectives in operational performance improvement in a rapidly changing environment.     

An analytic approach for planning computerized office systems

The increasing demand for timely business information as well as the need to improve the effectiveness of administrative operations are forcing managements to consider installing automated office systems. These systems provide text word processing capabilities, information management and communication options. Their planning and evaluation process considers decision issues that are, at times, in conflict with each other. This paper presents a decision framework for the planning and evaluation of computerized office systems. Attention is focused, in particular, on the selection and the integration of word processing systems in the broader context of future office developments. It evolved from several real acquisition cases where such systems had to be planned, evaluated and selected.     

Qualitative decision making with integrated systems design methodology: A case study

System design is associated with building a formal morphology of the system, comprising the process of defining the system parameters, submodels, and criteria, selecting an optimal candidate, and preparing a detail implementation plan for the chosen candidate. It is primarily a wholistic approach to engineering a system, and is differentiated from operations research and other analytical methods. Specifically, operations research may be used to help resolve problems within a system, but usually does not replace the design and development process necessary to complete a system. However, it assists in the development process of the resulting configurations.This case study introduces a set of criterion function models and algorithms for the design of systems, along with mathematical foundations for building the models. Criteria for the system are determined and candidate system values are represented as probabilities in the [0, 1] range in order to achieve ordinal ranking of candidates on a cardinal scale. Both mutually exclusive and interactive design criteria could be represented by the developed models, which allow reflection of the nature of a wide variety of real-world systems. The developed models and algorithms are illustrated with a numerical example.     

Decision support systems for production scheduling tasks- Part I of a case study: Analysis and task redesign

The first three steps of a new design method for decision support systems in production scheduling tasks are applied to a large bulk terminal. The operational characteristics of the company largely correspond with those of typical semiprocess industries. The design model used consists of five steps: production analysis, task analysis, task redesign, decision support design and decision support implementation. The results of the application of the design model up to the task redesign step are described.     

Implementation of holonic scheduling and control in flow-line manufacturing systems: die-casting case study

The success of a flow-line manufacturing system depends on effective production scheduling and control. However, it has been found that current flow-line manufacturing scheduling and control algorithms lack the flexibility to handle interruptions or resource breakdowns; hence, system performance drops automatically and rapidly when interruptions occur. The objective of this research is to investigate if the performance of a flow-line manufacturing system can be improved by integrating agent-based, holonic scheduling and production control. A holonic manufacturing scheduling model has been developed and implemented into a die-casting manufacturing flow line throughout a simulation model. The analysis takes into account the comparisons of overall performances of the system models with the holonic scheduling and conventional scheduling approaches. Simulation results indicate that the holonic manufacturing scheduling and control can significantly increase the uptime efficiency and the production rate of the flow-line manufacturing system.     

Sustainable planning strategies in supply chain systems: proposal and applications with a real case study in fashion

Abstract

Pollution generated by the fashion industry drives people to pay attention to fashion companies’ sustainability practice. This increase in attention has induced vast literature studying the related area. Since the fashion apparel supply chain is complicated which involves a lot of interrelated steps and decisions, how fashion companies can identify the demand in sustainable fashion and make the right decision in resource allocation throughout the supply chain becomes a critical issue. As a result, this paper examines how a fashion company can develop a successful sustainable planning strategy throughout the sustainable fashion supply chain. The sustainability attributes and the sustainable planning strategy mechanism are also discussed. Based on the institutional theory and resource-based theory, we first analyse the external pressure and internal motivations for companies to adopt a sustainable planning strategy in the fashion supply chain. We then identify the core stakeholders related to the sustainable planning strategy and propose how the decision-making theory can help develop the sustainable supply chain management mechanism. Next, we establish a sustainable planning strategy framework. Finally, via a case study with public data on the fashion giant brand Nike, we explore the application of our proposed sustainable planning strategy framework. The finding suggests that the strategic planning of fashion companies on sustainability can improve the performance of the stakeholders throughout the whole sustainable fashion supply chain.     

Group technology cell design: a case study

Rising production costs, combined with competitive pressures, have resulted in an increased focus on the need for effective manufacturing planning and control. To remain competitive, organizations are exploring new ways for increasing productivity while reducing work-in-progress inventories and product lead time. This article describes a case study of the successful introduction of production cells in a company engaged in small batch production. The company is described and its manufacturing problems presented. Following a detailed analysis of the utilization of machines in the company's machine shop, a new manufacturing technique, giving improved work flow, is proposed.     

Real-time schedule adjustment decisions: a case study

Service capacity management has been extensively studied and successfully applied in many industries, with an emphasis on tour/shift scheduling and assignment decisions. However, few studies have addressed real-time work schedule adjustment decisions made necessary by demand uncertainty and/or labor supply disruption. This case study deals with the real-time work schedule adjustment decision and investigates the association of managerial experience, workforce mix (full- and part-time staff), and information accuracy with managers’ adjustment decisions. We designed an experiment that involved practicing service managers from a McDonald's franchise who provided their adjustment decisions for a given set of test scenarios. Their decisions were analyzed and evaluated via a controlled experiment. Using profitability as the primary performance measure, the study identifies the following outcomes: First, senior managers of a store with a higher proportion of part-time staff made more adjustments and attained slightly higher profitability than junior managers, when all employees accepted adjusted schedules. Second, managers of a store with a higher proportion of part-time staff were able to make slightly higher profits, particularly when capacity shortages occurred. And third, to achieve the majority of the benefits from schedule adjustments, it is sufficient to search for information that correctly identifies the direction of demand changes, rather than identifying the exact magnitude of the changes.     

Understanding performance measurement dynamism: a case study

This paper elaborates on the notion of performance measurement (PM) dynamism. The paper’s argument is based on a literature review and an interventionist case study. The analysis of the structure of PM dynamism is deepened by using New Institutional Sociology theory as a tool. PM dynamism was found to occur at four different levels: in setting the role of performance measures for decision making in general, in the use of measures, in the selection of measures and within the components of single measures. PM dynamism allows, for instance, measures used only for specific and topical purposes (ad hoc), in contrast to the views presented in the extant literature, which reject measures that are not institutionalized. The use of up-to-date measures, a major implication of understanding PM dynamism more thoroughly, could lead to more efficient strategy implementation and enactment at different levels. The originality of the article consists of identifying the rationale and the levels of PM dynamism and of the consideration that the use of ad hoc measures may have a positive impact on managing performance.     

State document legislation: Nebraska a case study

An account of the process of drafting and enacting Nebraska's 1972 state document depository legislation, Chapter 51, Sections 411–418, Revised Statutes of Nebraska 1943. The process can be divided into three distinct stages: gathering information, drafting the legislation, and enactment of the legislation. Included also are six main provisions of the Nebraska law, together with the rationale for the provisions.