Search results

1 – 10 of over 7000
To view the access options for this content please click here
Article
Publication date: 13 March 2009

William Fawcett and Danny Rigby

The growth in flexible working by employees in many office‐based organisations means that workstation sharing at the employer's premises is increasingly attractive…

Downloads
1233

Abstract

Purpose

The growth in flexible working by employees in many office‐based organisations means that workstation sharing at the employer's premises is increasingly attractive. However, because of peaks and troughs in demand it is difficult to decide how many workstations should be provided. The purpose of this paper is to investigate the cost‐effectiveness of alternative workstation sharing strategies.

Design/methodology/approach

The study used an agent‐based simulation model with two input variables: the employees' reaction if they are blocked (i.e. they find that all workstations are already occupied), and the number of workstations at the employer's premises. The simulation was run for 56 scenarios. The results were evaluated by assigning cost penalties for workstations, blocking and displacement; there were eight cost regimes reflecting different organisational characteristics.

Findings

The simulations showed trade‐offs between the activity and space variables, in terms of utilisation, blocking and displacement. When costs were applied the output of the simulation runs, the most cost‐effective scenarios varied markedly with the different cost regimes.

Research limitations/implications

The variation in optimum strategies with different model input values suggests that cost‐effective workstation sharing strategies must be developed on a case‐by‐case basis. The simplifying assumptions in the model must be considered when applying the findings to real organisations.

Originality/value

Quantified analysis of the cost‐effectiveness of workstation sharing strategies has not been found previously in the literature.

Details

Journal of Corporate Real Estate, vol. 11 no. 1
Type: Research Article
ISSN: 1463-001X

Keywords

To view the access options for this content please click here
Article
Publication date: 1 December 2000

Philip Konomos and Scott Herrington

From the moment the ASU Libraries migrated from dumb terminals to PC workstations for access to electronic resources, there was great concern that these workstations would…

Downloads
411

Abstract

From the moment the ASU Libraries migrated from dumb terminals to PC workstations for access to electronic resources, there was great concern that these workstations would be used “inappropriately”. Whether students should be allowed to check their e‐mail from the workstations was debated, as was the need to restrict access to the Internet. The Information Technology division at the University was concerned with how the Library would provide accountability for anything that happened at a public workstation. After much discussion, it was decided that the Library PC workstations would provide unrestricted access to the Internet. Telnet access was limited to library‐related resources requiring Telnet, in an effort to keep students from doing computing assignments and personal e‐mail on these workstations. The systems department developed an approach to data collection that included both an observational system and an electronic data collection system, using sampling techniques, to collect data on the use of the PC workstations at the main library (Hayden) at Arizona State University. This presentation will describe the data collection techniques, the results of data analysis, and how the results of data analysis are being used to better manage the PC workstations in the Library.

Details

The Electronic Library, vol. 18 no. 6
Type: Research Article
ISSN: 0264-0473

Keywords

To view the access options for this content please click here
Article
Publication date: 1 April 1989

Ron G. Martin

Academic libraries that are replacing the traditional card catalog with the online public access catalog (OPAC) are faced with a number of complex and difficult decisions…

Abstract

Academic libraries that are replacing the traditional card catalog with the online public access catalog (OPAC) are faced with a number of complex and difficult decisions regarding the shape and design of the OPAC workstation. This article provides guidelines and recommendations for an OPAC workstation that will support the terminal, printer, and other peripherals. Emphasis is placed on the library's commitment to flexibility when designing a workstation that will serve the needs of users for several years.

Details

Library Hi Tech, vol. 7 no. 4
Type: Research Article
ISSN: 0737-8831

To view the access options for this content please click here
Article
Publication date: 1 May 1997

A. Andijani

Investigates the trade‐off between the average throughput rate and the average systems time using kanban discipline. Considers a multistage serial production line system…

Downloads
1265

Abstract

Investigates the trade‐off between the average throughput rate and the average systems time using kanban discipline. Considers a multistage serial production line system with materials in the system controlled by kanban discipline. Presents simulation results to evaluate the production system performance in terms of the average throughput rate and the average system time for a fixed total number of kanbans over a given number of serial workstations. Constructs and compares efficient allocation sets for three and four workstations that are generated by kanban discipline for two processing time distributions, namely, uniform and exponential distributions. Based on the simulation results from three and four work‐stations, develops a general design rule to maximize the average throughput rate and to minimize the average system time. Analyses five and six workstations using the general design rule. Tests the validity of the general design rule by considering five and six workstations with a different number of kanbans. The results show that most of the efficient sets generated by the design rule are identical to those generated by enumerating all combinations of kanban allocations. However, using the general design rule reduces the simulation work tremendously.

Details

International Journal of Operations & Production Management, vol. 17 no. 5
Type: Research Article
ISSN: 0144-3577

Keywords

To view the access options for this content please click here
Article
Publication date: 1 October 2004

Rajesh Piplani and Sen Ann Puah

Production planning using simulation has been gaining popularity as manufacturing routings become more complicated. However, a detailed simulation model that contains…

Abstract

Production planning using simulation has been gaining popularity as manufacturing routings become more complicated. However, a detailed simulation model that contains hundreds of machines and thousands of operations is far too large and complex to work with. The thesis in this research is that production planners at plant level do not need to see all the details of the shop floor to develop an effective production plan. Simulation model used for production planning can be simplified to ensure maintainability and manageability of the model. Model simplification is done in two stages, namely aggregation and condensation. Model aggregation reduces the number of routings in the model by using representative flows, whereas model condensation reduces the number of elements in a model by eliminating high throughput rate workstations. Both strategies reduce the complexity of a simulation model without sacrificing its accuracy. Experimental results using real‐life data indicate that the simplified model is a valid representation of the detailed model, and can be used for high level production planning. t‐Tests are used to compare the results of the detailed and simplified simulation model. Finally, rules of thumb are developed to standardize the simplification strategy.

Details

Journal of Manufacturing Technology Management, vol. 15 no. 7
Type: Research Article
ISSN: 1741-038X

Keywords

To view the access options for this content please click here
Article
Publication date: 1 March 1992

Ron G. Martin

It has been three years since an OPAC workstation at Indiana State University Libraries (ISU) was designed and constructed. During the planning stages, two surveys helped…

Abstract

It has been three years since an OPAC workstation at Indiana State University Libraries (ISU) was designed and constructed. During the planning stages, two surveys helped determine user preferences at the time. More recently, a third survey was conducted. The purpose of this survey was two‐fold: to assess how well the workstation was actually meeting users' present needs, and to provide guidance in the construction of future OPAC workstations. In particular, the survey sought ideas both on what new equipment should be purchased for a future workstation and how to better arrange the equipment that is already part of the present workstation.

Details

Library Hi Tech, vol. 10 no. 3
Type: Research Article
ISSN: 0737-8831

To view the access options for this content please click here
Article
Publication date: 16 April 2020

Berna Unver, Özgür Kabak, Y. Ilker Topcu, Armagan Altinisik and Ozcan Cavusoglu

In the automotive industry, the high process complexity becomes an important issue because of the increased number of product and process variants demanded by the…

Abstract

Purpose

In the automotive industry, the high process complexity becomes an important issue because of the increased number of product and process variants demanded by the customers. To avoid quality defects in assembly and losses in such a complex manufacturing environment, new predictive support systems are required. This study aims to develop a multiple attribute decision support system (DSS) for the prediction and quantification of the risk of failures on the workstations of a leading Turkish automotive manufacturing company.

Design/methodology/approach

Initially, the factors affecting the failures in workstations and the attributes to evaluate the factors are identified. Subsequently, the relations among the attributes are specified and priorities of them are calculated. Finally, the risk of failures is calculated and tested in a pilot study and validated with real production data.

Findings

To the best of authors’ knowledge, this is a unique study that computes the risk scores on the workstations via DSS. The DSS has various advantages for improvements of the manufacturing quality: the risk of failures can be detectable and comparable, the effect of changes in the design of new workstations can be observed. Stations that have medium or high complexity scores demonstrated strong correlation with failure rates. A sensitivity analysis is conducted to predict the effect of improvement actions on the riskiness of the workstations.

Originality/value

High level of production complexity becomes a crucial issue for companies that use various production processes. Considering this fact, it is a requirement for companies to observe and monitor the risk factors, especially in the assembly lines to be able to eliminate failures derived from complexity. Accordingly, to measure risk scores of the workstations in the assembly lines, a decision support for companies aids executives to manage the complexity level in a reliable and effective way. In this study, the authors develop such a DSS for TOFAS, a leading Turkish automotive company. The proposed DSS is verified and applied through a pilot study on a specific basic production unit. A sensitivity analysis is also conducted to see the effects of potential improvements on the risk scores. Additionally, the trend of risk scores for the stations can also give valuable information for tracing the changes in the time horizon. The proposed DSS also enables an opportunity for the executives in their decision of design processes of new production lines by allocating limited resources in an appropriate way based on the risk scores of possible workstations. The proposed DSS is the first and unique proactive failure prevention model developed in a Fiat Chrysler Automobiles (FCA) plant across the world. TOFAS executives also plan to introduce and enlarge the usage of the model to other FCA plants. It may also be possible to apply the model to other assembly lines in any sector. Another plan of the executives of TOFAS is developing a software, which manages each parameter, to constitute data to the DSS to run this system more instantly and effectively. Moreover, they can take integration actions of the software with world-class manufacturing problem management system that is currently in use in TOFAS.

Details

Journal of Enterprise Information Management, vol. 33 no. 5
Type: Research Article
ISSN: 1741-0398

Keywords

To view the access options for this content please click here
Article
Publication date: 27 April 2020

Ashish Yadav, Shashank Kumar and Sunil Agrawal

Multi-manned assembly lines are designed to produce large-sized products, such as automobiles. In this paper, a multi-manned assembly line balancing problem (MALBP) is…

Abstract

Purpose

Multi-manned assembly lines are designed to produce large-sized products, such as automobiles. In this paper, a multi-manned assembly line balancing problem (MALBP) is addressed in which a group of workers simultaneously performs different tasks on a workstation. The key idea in this work is to improve the workstation efficiency and worker efficiency of an automobile plant by minimizing the number of workstations, the number of workers, and the cycle time of the MALBP.

Design/methodology/approach

A mixed-integer programming formulation for the problem is proposed. The proposed model is solved with benchmark test problems mentioned in research papers. The automobile case study problem is solved in three steps. In the first step, the authors find the task time of all major tasks. The problem is solved in the second step with the objective of minimizing the cycle time for the sub-tasks and major tasks, respectively. In the third step, the output results obtained from the second step are used to minimize the number of workstations using Lingo 16 solver.

Findings

The experimental results of the automobile case study show that there is a large improvement in workstation efficiency and worker efficiency of the plant in terms of reduction in the number of workstations and workers; the number of workstations reduced by 24% with a cycle time of 240 s. The reduced number of workstations led to a reduction in the number of workers (32% reduction) working on that assembly line.

Practical implications

For assembly line practitioners, the results of the study can be beneficial where the manufacturer is required to increased workstation efficiency and worker efficiency and reduce resource requirement and save space for assembling the products.

Originality/value

This paper is the first to apply a multi-manned assembly line balancing approach in real life problem by considering the case study of an automobile plant.

Details

Benchmarking: An International Journal, vol. 28 no. 5
Type: Research Article
ISSN: 1463-5771

Keywords

To view the access options for this content please click here
Article
Publication date: 29 June 2020

Xiaofeng Quan, Hongjun Xiao, Qiong Ji and Jinkang Zhang

This paper aims to analyse the role of government-led innovative knowledge management platforms in innovation knowledge management, social network effects and innovative…

Abstract

Purpose

This paper aims to analyse the role of government-led innovative knowledge management platforms in innovation knowledge management, social network effects and innovative resource clusters in the context of academician workstations in China. Specifically, this paper empirically studies the impact of academician workstations on corporate innovation capabilities and the mechanisms behind this impact.

Design/methodology/approach

This study uses the propensity matching score method and difference-in-differences method to test the relationship between academician workstations and corporate innovation capabilities. Baron and Kenny’s (1986) mediation method is used to test two potential mechanisms.

Findings

Academician workstations significantly improve corporate innovation capabilities because of their contribution to knowledge and innovation management. The facilitation effects are stronger in non-state-owned firms, high-tech firms and firms in industries with low levels of competition. Further, academician workstations enhance corporate innovation capabilities through their funding effect.

Practical implications

This paper encourages policymakers to create a better market environment and stable support policies to facilitate sustainable scientific and technological innovation.

Originality/value

To the best of authors’ knowledge, this study is among the first to empirically analyse the impacts of innovative knowledge management platforms on corporate innovation. It enriches the theoretical perspective of innovation platforms and provides an excellent research perspective for effectively analysing the impacts of innovation platforms. This study also contributes to the literature on the determinants of innovation.

Details

Journal of Knowledge Management, vol. 25 no. 1
Type: Research Article
ISSN: 1367-3270

Keywords

To view the access options for this content please click here
Article
Publication date: 18 June 2020

Amira Mohamed Eladly, Mohamed Gaber Abou-Ali, Aida Mohamed Sheta and Sherwet Hussein EL-Ghlomy

The apparel industry is a labor-intensive industry, which depends mainly on the performance of the worker. The purpose of this study is to present an ergonomic redesign of…

Abstract

Purpose

The apparel industry is a labor-intensive industry, which depends mainly on the performance of the worker. The purpose of this study is to present an ergonomic redesign of the sewing machine workstation, with different sewing table heights and inclination angles, based on the operator’s anthropometric data.

Design/methodology/approach

A flexible ergonomic sewing table has been designed, four main workstation-setting factors were studied; sewing desk inclination angles – X_1, height – X_2, sewing machine type – X_3 and operator’s body mass index (BMI) – X_4, with three levels for each factor, except sewing machine type, which only has two levels. The study was undertaken to specify the limitations and advantages of each combination tested. Different measurement techniques were used; subjective information, production rates – P, working postures (head, neck and trunk inclination angles in the kinematic stage) were measured.

Findings

Sewing operators’ sitting posture angles in the kinematic stage were affected more or less by their anthropometric measurements and the type of sewing machine. These two factors should be taken into consideration when ergonomically redesigning the sewing machine workstation.

Practical implications

A new ergonomically redesigned sewing machine table can be incorporated into garment factories, taking into consideration the BMI of the operators to improve their productivity and reduce musculoskeletal disorder complaints due to incorrect operators’ posture.

Originality/value

An important correlation was found between the sewing operator’s anthropometric body measurement – BMI and the type of sewing machine (with significant R^2 = 0.8385 and 0.9764 with both the head and neck inclination angles O_H, O_N, respectively).

Details

Research Journal of Textile and Apparel, vol. 24 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

1 – 10 of over 7000