The shift level of the utilization of capacity as the stochastic variable in work sampling

Klarin, Milivoj; Cvijanović, Janko M.; Spasojević-Brkić, Vesna

doi:10.1080/002075400411402

Cited by 15 publications

(19 citation statements)

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“…However only three elements are observed, namely machine is operating, machine is not operating and machine is in preparation. Authors of present paper modified this method [14,15] by dividing the observed elements into more components than Tippet had, which provided more details about process and showed that capacities utilization is a stochastic function via control limits that are optimal when defined by 2 standard deviations.…”

Section: Methodsmentioning

confidence: 99%

Production cycle time reduction in low and medium-low-tech companies: a case study for Serbia

et al. 2016

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M. Klarin i dr.Smanjenje vremena proizvodnog ciklusa kod tvrtki na niskom i srednje-niskom tehnološkom stupnju: studija slučaja za Srbiju Original scientific paper Serbia is a developing country, which among other things implies underdeveloped industrial base. A fact is that more than two thirds of all Serbian industry includes low-tech and medium-low-tech companies. These companies should implement tools and methods that are simple and low cost, but effective and helpful in a way that will increase their productivity and product quality. This paper suggests such a method for obtaining production cycle time components, and verifies it through a case study conducted during three years in one Serbian company. Practical result of this research is that application of the proposed method leads to reducing production cycle time, increasing production time, increasing production and increasing overall satisfaction and engagement of the executor. Keywords: low and medium-tech companies; production cycle; time components of production cycleSmanjenje vremena proizvodnog ciklusa kod tvrtki na niskom i srednje-niskom tehnološkom stupnju: studija slučaja za Srbiju Izvorni znanstveni članak Srbija je zemlja u razvoju, što između ostalog podrazumijeva nerazvijenu industrijsku bazu. Činjenica je da više od dvije trećine svih Srpskih industrija uključuje tvrtke na niskom i srednje niskom tehnološkom stupnju. Te tvrtke trebaju implementirati alate i metode koji su jednostavni i zahtijevaju male troškove, ali su učinkoviti i korisni u smislu da će povećati produktivnost i kvalitetu proizvoda. Ovaj članak predlaže jednu takvu metodu za dobivanje vremenskih komponenti proizvodnog ciklusa i provjerava njenu učinkovitost kroz studiju slučaja provedenu tijekom tri godine u jednoj srpskoj tvrtki. Praktični rezultat ovog istraživanja je da primjena predložene metode dovodi do smanjenja vremena proizvodnog ciklusa, povećanja proizvodnog vremena, povećanja proizvodnje i povećanja ukupnog zadovoljstva i angažmana izvršitelja. Ključne riječi: proizvodni ciklus; tvrtke na niskom i srednje niskom tehnološkom stupnju; vremenske komponene proizvodnog ciklusa

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Section: Methodsmentioning

confidence: 99%

Production cycle time reduction in low and medium-low-tech companies: a case study for Serbia

et al. 2016

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“…The conclusion drawn is that the shift level of capacity utilization as the stochastic variable in work sampling is the model which solves the problem of determining the total level of capacity utilization in a convenient way with accurate results. On the other hand, on the basis of Klarin et al (2000), Elnekave and Gilad (2006) propose a digital video-based approach to enhance work measurement and analysis by facilitating the generation of rapid time standards, which serves as a computerized tool for remote work measurement with the ability to derive the rapid generation of time standards. The application of the modified work sampling method in the processing industry indicates that the methods of monitoring capacity utilization applied in the processing industry such as cement production may also be used in the metalworking industry which has a high level of capacity utilization.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Despite its shortcomings, this method is still used in production practice and is found in all industrial engineering text-books (Richardson and Eleanor, 1982). The indispensible modification of the method presented by Klarin et al (2000) aims to explain and justify both the necessity and importance of using the shift level of the utilization of capacity as the stochastic variable in determining the total level of capacity utilization in the production process by using the method of work sampling on a sample comprising 74 Serbian companies. The conclusion drawn is that the shift level of capacity utilization as the stochastic variable in work sampling is the model which solves the problem of determining the total level of capacity utilization in a convenient way with accurate results.…”

Section: Literature Reviewmentioning

confidence: 99%

A stochastic model to determine the elements of production cycle time in enterprise

Klarin¹,

Spasojević-Brkić²,

Stanisavljev³

et al. 2012

JEMC

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A model for the stochastic determination of the elements of production cycle time is proposed and experimentally verified in this survey. The originality of the model is reflected in the idea of using a work sampling model to monitor the production cycle, as one of the most significant indicators of production effectiveness and efficiency, instead of applying classical methods. It has been experimentally proved that for a corresponding representative set the elements of working time range according to normal distribution law and that, dynamically viewed, it is possible using mean value calculations to establish control limits on 3 standard deviations for the individual elements of working time and thus to master the process.

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“…1 and 2 represent only manufacturing time that involves the waiting time for the operation beforehand and the worker's manual work time related to a single unit. Therefore, manufacturing time should be distinguished when the machine capacity is analyzed [6] and when the PC time is analyzed and monitored. This refers particularly to serial production, when the work sampling method is applied and, in general, work study is performed.…”

Section: Problem Statementmentioning

confidence: 99%

Determination of the Elements of Production Cycle Time in Serial Production: The Serbian Case

Ćoćkalo

Stanisavljev

Đorđević

et al. 2014

Transactions of the Canadian Society for Mechanical Engineering

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A model for the stochastic determination of the elements of production cycle time is proposed and experimentally verified in this survey. The originality of the model as reflected in the idea of using a work sampling model to monitor the production cycle is one of the most significant indicators of production effectiveness and efficiency, instead of applying classical methods. It has been experimentally proved that for a corresponding representative set the elements of working time range according to normal distribution law and that, dynamically viewed, it is possible to use mean value calculations to establish control limits on three standard deviations for the individual elements of working time and thus to master the process. Based on our experimental investigations, it has been proved that in the practice of small and medium-sized enterprises with serial production it is possible to design and apply a very simple but accurate enough stochastic model to determine the elements of working cycle time and in this way optimize the duration of production cycle time.Keywords: production cycle, production cycle time, work sampling, stochastic model. DÉTERMINATION DES COMPOSANTES DU TEMPS DE CYCLE DANS

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The shift level of the utilization of capacity as the stochastic variable in work sampling

Cited by 15 publications

References 0 publications

Production cycle time reduction in low and medium-low-tech companies: a case study for Serbia

Production cycle time reduction in low and medium-low-tech companies: a case study for Serbia

A stochastic model to determine the elements of production cycle time in enterprise

Determination of the Elements of Production Cycle Time in Serial Production: The Serbian Case

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