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1 – 10 of 124
Article
Publication date: 1 February 1992

N. Singh and J.K. Brar

Provides a comprehensive review of various modelling approachesrelated to Just‐in‐Time (JIT) manufacturing. JIT is essentially aphilosophy for reducing lead time as well…

Abstract

Provides a comprehensive review of various modelling approaches related to Just‐in‐Time (JIT) manufacturing. JIT is essentially a philosophy for reducing lead time as well as excessive work‐in‐progress inventories. Based on this concept a number of techniques have been developed for the design, planning, scheduling and control of JIT manufacturing systems. Reports on a comparative study of these approaches for JIT manufacturing along with the conventional manufacturing approaches and alternative systems for JIT manufacture. Explores future research areas.

Details

International Journal of Operations & Production Management, vol. 12 no. 2
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 1 July 1993

A.Z. Keller and A. Kazazi

Examines Just‐in‐Time (JIT) from its evolution as a Japaneseconcept through to a review of its philosophy and implementation. Citesseveral techniques of implementation…

2294

Abstract

Examines Just‐in‐Time (JIT) from its evolution as a Japanese concept through to a review of its philosophy and implementation. Cites several techniques of implementation. Includes a review of the early work of various researchers and practitioners. Concludes that JIT is a very effective manufacturing philosophy which is universal in nature encompassing all aspects of manufacturing. Suggests a few deficiencies in current literature.

Details

Industrial Management & Data Systems, vol. 93 no. 7
Type: Research Article
ISSN: 0263-5577

Keywords

Article
Publication date: 1 December 2001

Göran Svensson

Many widespread managerial concepts are expressed as abbreviations of two or three letters. In addition, they have often been introduced and treated as new‐to‐the‐world by…

8915

Abstract

Many widespread managerial concepts are expressed as abbreviations of two or three letters. In addition, they have often been introduced and treated as new‐to‐the‐world by both scholars and practitioners. For example, just‐In‐time (JIT) is a managerial concept that has been heavily promoted in the world‐wide automotive industry. Its underlying principles have been implemented by most car manufacturers or car assemblers for many decades. JIT, as a phenomenon, has been named differently at different times during the last century. Therefore, the newness of JIT and its underlying principles is questioned in the article. The article describes parts of the historic evolution of JIT during the twentieth century in literature. It is concluded that JIT is just a reincarnation of past theory and practice.

Details

Management Decision, vol. 39 no. 10
Type: Research Article
ISSN: 0025-1747

Keywords

Article
Publication date: 1 March 2002

Göran Svensson

The reason for this research originates from the time‐ and functional dependencies between firms’ activities and resources in supply chains. These dependencies cause…

7981

Abstract

The reason for this research originates from the time‐ and functional dependencies between firms’ activities and resources in supply chains. These dependencies cause vulnerability. The principal objective of this research is to conceptualize the construct of vulnerability in firms’ inbound and outbound logistics flows. The vulnerability construct of this research consists of two components: disturbance and the negative consequence of disturbance. This research is based upon a two‐phase process utilizing sequential triangulation. It is proposed that the vulnerability in the inbound logistics flows from sub‐contractors, and the vulnerability in the outbound logistics flows to customers, may be measured and evaluated by four principal dimensions, namely: service level, deviation, consequence and trend. In addition, a model of inbound and outbound vulnerability scenarios in supply chains is introduced for teaching and training purposes, as well as to position and compare the outcome of replication studies of vulnerability in firms’ inbound and outbound logistics flows.

Details

International Journal of Physical Distribution & Logistics Management, vol. 32 no. 2
Type: Research Article
ISSN: 0960-0035

Keywords

Article
Publication date: 1 October 1999

Surendra M. Gupta, Yousef A.Y. Al‐Turki and Ronald F. Perry

Just‐in‐time (JIT) systems were originally designed for deterministic production environments such as constant processing times and smooth and stable demand. However, once…

6914

Abstract

Just‐in‐time (JIT) systems were originally designed for deterministic production environments such as constant processing times and smooth and stable demand. However, once implemented, JIT is fraught with numerous types of uncertainties, including variations in processing time and demand, planned interruptions such as preventive maintenance and unplanned interruptions such as equipment failure. These uncertainties lead to lowered production throughput, decreased machine utilization, increased order completion time and greater backlogs and overtime requirements. In this paper, we introduce a newly developed system, which we refer to as the flexible kanban system (FKS), to cope with uncertainties and planned/unplanned interruptions. We demonstrate the superiority of the new system by considering four case examples covering various uncertainties, conducting numerous studies and comparing the overall performances of the FKS with that of the traditional JIT system. In all the cases considered, the performance of the FKS was, indeed, superior to that of the traditional JIT system.

Details

International Journal of Operations & Production Management, vol. 19 no. 10
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 1 December 2002

Göran Svensson

Originates from the time‐ and relationship‐dependencies between companies’ activities and resources in marketing channels which cause vulnerability. The construct of…

2579

Abstract

Originates from the time‐ and relationship‐dependencies between companies’ activities and resources in marketing channels which cause vulnerability. The construct of vulnerability is still fairly unexplored in marketing channel research. Therefore, the principal objective of this research is to conceptualise the construct of vulnerability. Bases the conceptualisation on generic time‐ and relationship‐dependencies between companies’ business activities in marketing channels. This research is based on a mail survey in three different industries in Sweden. Develops and describes a typology of vulnerability scenarios based on a set of generic dimensions of time‐ and relationship‐dependencies between companies’ business activities in these industries. Uses a minor selection of broad items that empirically underpin the introduced typology. Further research has to be carried through in order to explore the validity and reliability of the empirical findings of this research note. Nevertheless, the contribution of this research is a tentative typology of vulnerability scenarios based upon time‐ and relationship‐dependencies between companies’ business activities in marketing channels.

Details

Supply Chain Management: An International Journal, vol. 7 no. 5
Type: Research Article
ISSN: 1359-8546

Keywords

Article
Publication date: 1 September 2000

Tim Haslett and Charles Osborne

A theory of local rules was developed using Kauffman and Holland’s work on fitness landscapes. Local rules are used by individuals to increase their chances of survival on…

1705

Abstract

A theory of local rules was developed using Kauffman and Holland’s work on fitness landscapes. Local rules are used by individuals to increase their chances of survival on a fitness landscape. This paper reports on results from a simulation model of the local rules used by managers in the operation of a kanban system. In this case, local rules were used to optimise chances of survival by deflecting senior management criticism of potential stockouts in the system. The local rules used by the managers were modelled and their success and unintended consequences were reported. Some tentative conclusions about the effectiveness of local rules were advanced.

Details

International Journal of Operations & Production Management, vol. 20 no. 9
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 1 September 1995

Samar K. Mukhopadhyay

The success of a JIT system depends on the effective implementationof all its components, including JIT purchasing. Even after followingall prescribed implementation…

1665

Abstract

The success of a JIT system depends on the effective implementation of all its components, including JIT purchasing. Even after following all prescribed implementation procedures of the JIT purchasing system, many companies are frustrated owing to delayed or early delivery of materials to the work centres because of limited unloading facilities. Identifies this problem, develops a mathematical formulation and provides a methodology for obtaining optimal delivery schedules for JIT purchases by applying operations research techniques. An algorithm‐based decision support system is developed which gives optimal unloading schedules very quickly, making it suitable for daily JIT purchases delivery planning.

Details

International Journal of Operations & Production Management, vol. 15 no. 9
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 5 March 2014

Hannah Dale, Linsay Brassington and Kristel King

There is growing evidence that health behaviour change interventions are associated with mental health and wellbeing improvements. This paper aims to examine the effect of…

6502

Abstract

Purpose

There is growing evidence that health behaviour change interventions are associated with mental health and wellbeing improvements. This paper aims to examine the effect of healthy lifestyle interventions on mental wellbeing.

Design/methodology/approach

Six databases (Medline, Evidence Based Medicine Cochrane Registered Controlled Trials, Evidence Based Medicine Full Text Reviews, British Nursing Index, Embase, PsycINFO) were searched from database commencement up to April 2013. A broad focus on lifestyle interventions and mental health and wellbeing outcomes was chosen. Papers were systematically extracted by title then abstract according to predefined inclusion and exclusion criteria. Inclusion criteria: any individual population (non-couple/family); any health behaviour change interventions; mental health and wellbeing outcomes; and a one-two level of evidence. Interventions aimed at workers were excluded, as were articles assessing cognitive functioning rather than mental health or wellbeing, or those using medications in interventions.

Findings

Two authors reviewed 95 full papers. In total, 29 papers met inclusion criteria, representing a range of interventions spanning physical activity, diet, alcohol intake, drug use and smoking. A range of measures were used. The majority (n=25) of studies demonstrated improvements on at least one indicator of mental health and wellbeing. Limitations include the broad range of outcome measures used, varied follow-up times and the lack of detail in reporting interventions.

Originality/value

Health behaviour change interventions targeting physical outcomes appear to have benefits to mental health and wellbeing spanning healthy populations and those with physical or mental health problems. Evidence is strongest for interventions targeting exercise and diet, particularly in combination and the actual lifestyle changes made and adherence appear to be important. However, it is not clear from this review which specific components are necessary or essential for improvements in mental health and wellbeing.

Details

Mental Health Review Journal, vol. 19 no. 1
Type: Research Article
ISSN: 1361-9322

Keywords

Article
Publication date: 1 October 1995

Jean‐Noel Ezingeard and Peter Race

The application of just‐in‐time manufacturing techniques in batchchemical processing environments, under conditions of variable demand,imposes significant capacity…

1015

Abstract

The application of just‐in‐time manufacturing techniques in batch chemical processing environments, under conditions of variable demand, imposes significant capacity management problems. Making decisions which involve levels of customer service and resource untilization can be aided by the application of the calculation methodology outlined, which uses standard spreadsheet techniques and forecast queue analysis. Presents a case example to clarify the links between service levels and resource utilization which can aid management decisions regarding timing, levels of stocks and sizing of facilities.

Details

International Journal of Operations & Production Management, vol. 15 no. 10
Type: Research Article
ISSN: 0144-3577

Keywords

1 – 10 of 124