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Article
Publication date: 27 June 2008

Gladys D.C. Barriga, Linda Lee Ho and Vicente G. Cancho

The purpose of this paper is to present designs for an accelerated life test (ALT).

Abstract

Purpose

The purpose of this paper is to present designs for an accelerated life test (ALT).

Design/methodology/approach

Bayesian methods and simulation Monte Carlo Markov Chain (MCMC) methods were used.

Findings

In the paper a Bayesian method based on MCMC for ALT under EW distribution (for life time) and Arrhenius models (relating the stress variable and parameters) was proposed. The paper can conclude that it is a reasonable alternative to the classical statistical methods since the implementation of the proposed method is simple, not requiring advanced computational understanding and inferences on the parameters can be made easily. By the predictive density of a future observation, a procedure was developed to plan ALT and also to verify if the conformance fraction of the manufactured process reaches some desired level of quality. This procedure is useful for statistical process control in many industrial applications.

Research limitations/implications

The results may be applied in a semiconductor manufacturer.

Originality/value

The Exponentiated‐Weibull‐Arrhenius model has never before been used to plan an ALT.

Details

International Journal of Quality & Reliability Management, vol. 25 no. 6
Type: Research Article
ISSN: 0265-671X

Keywords

Article
Publication date: 8 June 2021

Tiago Ribeiro de Araujo, Daniel Jugend, Marcio Lopes Pimenta, Gessica Mina Kim Jesus, Gladys Dorotea Dorotea Cacsire Barriga, José Carlos de Toledo and Ari Melo Mariano

This study aims to propose and test a research framework for analyzing the relationship between new product development (NPD) best practices and performance in companies that…

Abstract

Purpose

This study aims to propose and test a research framework for analyzing the relationship between new product development (NPD) best practices and performance in companies that belong to innovative industries in Brazil.

Design/methodology/approach

A quantitative survey was conducted, involving several industries, including agricultural machinery, automotive and pharmaceutical. Data was analyzed through multiple linear regression.

Findings

Among the best practices investigated, the main results show that “innovative culture” and “project climate” are factors that significantly affect the performance of the NPD.

Research limitations/implications

The choice of best practices can be considered a major limitation of this study, as this is a dynamic concept depending on a continuous analysis that must take into account the economic and technological environment.

Practical implications

This study highlights a relationship between an innovative culture and performance. Some practices may be adopted to address an innovative culture, such as stimulating employee creativity, acceptance and partnership with external actors for the joint development of technologies and employee involvement with NPD.

Originality/value

The findings expand the debate on best practices in NPD and innovation management by presenting results on the topic in an emerging country, in this case, Brazil.

Details

Journal of Business & Industrial Marketing, vol. 37 no. 2
Type: Research Article
ISSN: 0885-8624

Keywords

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