In the last decade, a growing number of studies focused on the qualitative/quantitative analysis of bibliometric-database errors. Most of these studies relied on the identification and (manual) examination of relatively limited samples of errors. Using an automated procedure, we collected a large corpus of more than 10,000 errors in the two multidisciplinary databases Scopus and Web of Science (WoS), mainly including articles in the Engineering-Manufacturing field. Based on the manual examination of a portion (of about 10%) of these errors, this paper provides a preliminary analysis and classification, identifying similarities and differences between Scopus and WoS. The analysis reveals interesting results, such as: (i) although Scopus seems more accurate than WoS, it tends to forget to index more papers, causing the loss of the relevant citations given/obtained, (ii) both databases have relatively serious problems in managing the so-called Online-First articles, and (iii) lack of correlation between databases, regarding the distribution of the errors in several error categories. The description is supported by practical examples concerning a variety of errors in the Scopus and WoS databases.

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com.MINITAB Ò and all other trademarks and logos for the Company's products and services are the exclusive property of Minitab Inc. All other marks referenced remain the property of their respective owners. See minitab.com for more information.Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms of licenses issued by the Copyright Licensing Agency. Enquiries concerning reproduction outside those terms should be sent to the publishers.The use of registered names, trademarks, etc., in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant laws and regulations and therefore free for general use.The publisher makes no representation, express or implied, with regard to the accuracy of the information contained in this book and cannot accept any legal responsibility or liability for any errors or omissions that may be made.

External metrology systems are increasingly being integrated with traditional industrial articulated robots, especially in the aerospace industries, to improve their absolute accuracy for precision operations such as drilling, machining, and jigless assembly. While currently most of the metrology assisted robotics control systems are limited in their position update rate, such that the robot has to be stopped in order to receive a metrology coordinate update, some recent efforts are addressed toward controlling robots using real-time metrology data. The indoor GPS is one of the metrology systems that may be used to provide real-time 6DOF data to a robot controller. Even if there is a noteworthy literature dealing with the evaluation of iGPS performance, there is, however, a lack of literature on how well the iGPS performs under dynamic conditions. This paper presents an experimental evaluation of the dynamic measurement performance of the iGPS, tracking the trajectories of an industrial robot. The same experiment is also repeated using a laser tracker for reference. Beside the experiments results presented, this paper also proposes a novel method for dynamic repeatability comparisons of tracking instruments.

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Purpose-One of the stated goals behind the formation of the International Organization for Standardization was to develop standards to facilitate international trade in goods and services. This goal has caused different country-group trends in the diffusion of ISO certification. The purpose of this paper is to create a taxonomy of ISO 9000 certification diffusion in Europe. Design/methodology/approach-The diffusion of ISO certificates in Europe was analyzed using the single linkage clustering algorithm. Then the features of each cluster were highlighted. Findings-European nations were found to belong to three macro areas which differ for patterns of ISO 9000 certification diffusion: the constant growth area, the saturation area and the decline area. Research limitations/implications-The present study deals with European nations, focusing on ISO 9000 standards. Future research will be addressed toward the analysis of other standards in a wider geographical area in order to see if the results found for the European reality may be extended. In addition the outcomes of such analysis may be used to enhance the existing models for the diffusion of ISO 9000 certification. Practical implications-The analysis of the evolution of the certification market may arouse the interest of both companies and certification bodies that, from this study, may gain an insight into the future possible demand of certification. Furthermore, this study can be interesting from a legislature point of view, providing an answer to a more general question: "What is the general life cycle of standards or regulations?" Originality/value-The novelty of the paper is the clustering approach that allows the grouping of different nations according to similar diffusion dynamics.

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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