User developed applications and information systems success: A test of DeLone and McLean's model

DeLone and McLean’s (1992) model of information systems success has received much attention amongst researchers. This study provides the first empirical test of an adaptation of DeLone and McLean’s model in the user-developed application domain. The model tested was only partially supported by the data. Of the nine hypothesized relationships tested, four were found to be significant and the remainder not significant. The model provided strong support for the relationships between perceived system quality and user satisfaction, perceived information quality and user satisfaction, user satisfaction and intended use, and user satisfaction and perceived individual impact. This study indicates that user perceptions of information systems success play a significant role in the user-developed application domain. There was, however, no relationship between user developers’ perceptions of system quality and independent experts’ evaluations, and user ratings of individual impact were not associated with organizational impact measured as company performance in a business simulation. Further research is required to understand the relationship between user perceptions of IS success and objective measures of success, and to provide a model of IS success appropriate to end user development

United Kingdom minerals yearbook 2014 : statistical data to 2013

The United Kingdom Minerals Yearbook is an annual publication providing comprehensive statistical data on minerals production, consumption and trade, and includes commentary on the UK's minerals industry. It contains: • essential guidance for decision makers • reliable and up–to–date information • authoritative commentary on current developments It is of value to all those interested in the many facets of Britain's minerals industry and its contribution to the national economy. This publication forms part of Britain's continuous mining and quarrying record

United Kingdom Minerals Yearbook 2013 : statistical data to 2012

The compilers of this volume are grateful for the help received from the Office for National Statistics, the Department for Business, Innovation and Skills, the Department for Communities and Local Government, the Department of Energy and Climate Change, the Crown Estate Commissioners, The Crown Mineral Agent, the Northern Ireland Department of Enterprise, Trade and Investment and the Isle of Man Department of Trade and Industry. They would also like to acknowledge the valuable assistance given by the World Bureau of Metal Statistics, the UK Iron and Steel Statistics Bureau, the Mineral Products Association, The Coal Authority and the numerous companies that have generously provided additional information

European mineral statistics 2009-13 : a product of the World Mineral Statistics database

This volume is the latest edition of a series that began in 2002 following the replacement of ‘World Mineral Statistics’ with ‘World Mineral Production’. It contains mineral production, import and export data for more than 70 mineral commodities, for 36 European countries including all EU Member States and EU Candidate Countries, plus Norway and Switzerland. These data are presented in two sections: by individual country and by commodity; the latter is illustrated by graphics. It remains the only freely available and up-to-date publication dedicated to statistical information about minerals and metals in Europe

Developing a self-paced interactive package for introductory computer programming

Teaching introductory programming can be a challenging task. Students can become too concerned with learning syntax at the expense of more general conceptual understanding. Distance education students in particular often have problems as the difficulty of the course content is compounded by the problems of isolation from other students and their tutor. Although instructional strategies for emphasising conceptual knowledge are well known for face-to-face instruction, there has been little attempt to apply them to the external situation. This paper describes the development of a supplementary package for external students designed to address some of these problems

European Mineral Statistics 2010-14: a product of the World Mineral statistics database

European Mineral Statistics provides statistical information about minerals and metals in Europe. It provides the essential background intelligence for any European minerals-related activities. Production, export and import tables are presented for all EU members and EU candidate countries, plus Norway and Switzerland, in two sections: •by individual country •by commodity, with bullets on salient features and graphics More than 70 different mineral commodities are included from Aluminium to Zirconium, plus statistics relating to primary aggregates and cement. The book also includes commentary discussing the different categories of minerals – construction minerals, industrial minerals, metals and energy minerals – in the European context and contains general information on the compilation of data

World Mineral Production 2011-15

The latest edition of this annual publication from the British Geological Survey (BGS). This volume contains mineral production statistics for the five year period from 2011 to 2015, for more than 70 mineral commodities, by country worldwide. It is the latest publication from the World Mineral Statistics dataset which began in 1913. The information contained in the dataset, and associated publications, is compiled from a wide range of sources: home and overseas government departments, national statistical offices, specialist commodity authorities, company reports, and a network of contacts throughout the world. The database compilers aim for integrity and accuracy in the data and, for quality control purposes, participate in international specialist groups, and maintain close links with other mineral statistics providers in Europe and North America

World Mineral Production 2012-16

The latest edition of this annual publication from the British Geological Survey (BGS) is now available to download. This volume contains mineral production statistics for the five year period from 2012 to 2016, for more than 70 mineral commodities, by country worldwide. Additional tables containing European production of aggregates and cement are included as an Appendix. It is the latest publication from the World Mineral Statistics dataset which began in 1913. The information contained in the dataset, and associated publications, is compiled from a wide range of sources: home and overseas government departments, national statistical offices, specialist commodity authorities, company reports, and a network of contacts throughout the world

User satisfaction as a measure of success in end user application development: An empirical investigation

End user application development to support organisational tasks is a phenomenon that is becoming increasingly important to organisations, yet there is little empirical research evaluating its effectiveness. Measures of user satisfaction, which are commonly used to evaluate organisational systems, may be inappropriate when end users assess systems they have developed themselves. This study compared the satisfaction ratings of applications which were evaluated by their end user developers with ratings of the same application by other end users. End users were significantly more satisfied with applications they had developed themselves. Possible implications of this finding are discussed

World Mineral Production 2015-2019

The latest edition of this annual publication from the British Geological Survey (BGS). This volume contains mineral production statistics for the five year period from 2015 to 2019, for more than 70 mineral commodities, by country worldwide. Additional tables containing European production of aggregates and cement are included as an Appendix. It is the latest publication from the World Mineral Statistics dataset which began in 1913. The information contained in the dataset, and associated publications, is compiled from a wide range of sources: home and overseas government departments, national statistical offices, specialist commodity authorities, company reports, and a network of contacts throughout the world. The database compilers aim for integrity and accuracy in the data and, for quality control purposes, participate in international specialist groups, and maintain close links with other mineral statistics providers in Europe and North America. The data provides essential mineral intelligence for: security of supply issues economic analyses environmental issues sustainable development planning regulation and policy issues ommercial strategic plannin