Impact of process conformance on the effects of test-driven development

Context: One limitation of the empirical studies about test-driven development (TDD) is knowing whether the developers followed the advocated test-code-refactor cycle. Research dealt with the issue of process conformance only in terms of internal validity, while investigating the role of other confounding variables that might explain the controversial effects of TDD. None of the research included process conformance as a fundamental part of the analysis. Goal: We aim to examine the impact of process conformance on the claimed effects of TDD on external quality, developers’ productivity and test quality. Method: We used data collected during a previous study to create regression models in which the level of process conformance was used to predict external quality, productivity, and tests thoroughness. Result: Based on our analysis of the available data (n = 22), we observe that neither quality (p – value = 0.21), productivity (p – value = 0.80), number of tests (p – value = 0.39) nor coverage (p – value = 0.09) was correlated with the level of TDD process conformance. Conclusion: While based on a small sample, we raise concerns about how TDD is interpreted. We also question whether the cost of strictly following TDD will pay-off in terms of external quality, productivity, and tests thoroughness.This research has been supported in part by the Academy of Finland with decision/grant no: 278354

New product development in an emerging economy: analysing the role of supplier involvement practices by using Bayesian Markov chain Monte Carlo technique

The research question is whether the positive relationship found between supplier involvement practices and new product development performances in developed economies also holds in emerging economies. The role of supplier involvement practices in new product development performance is yet to be substantially investigated in the emerging economies (other than China). This premise was examined by distributing a survey instrument (Jayaram’s (2008) published survey instrument that has been utilised in developed economies) to Malaysian manufacturing companies. To gauge the relationship between the supplier involvement practices and new product development (NPD) project performance of 146 companies, structural equation modelling was adopted. Our findings prove that supplier involvement practices have a significant positive impact on NPD project performance in an emerging economy with respect to quality objectives, design objectives, cost objectives, and “time-to-market” objectives. Further analysis using the Bayesian Markov Chain Monte Carlo algorithm, yielding a more credible and feasible differentiation, confirmed these results (even in the case of an emerging economy) and indicated that these practices have a 28% impact on variance of NPD project performance. This considerable effect implies that supplier involvement is a must have, although further research is needed to identify the contingencies for its practices

Dynamics of Buyer-Supplier Co-dependency for Optimizing Functional Efficiency

The performance related issues of buyer-supplier relationship have attracted both the academic and corporate managers. The study attempts to make theoretical contributions to the literature on relationships in marketing channels. Compared with the impact of the often-investigated construct of dependence structure, the impact of channel function performance on relationship quality is relatively large. This study has been conducted in reference to the suppliers of office equipments serving to the industrial accounts in Mexico. The study addresses broadly the issues as to what extent is the impact of quality performance responsible for doing business with the organizational buyers. Discussions also analyze the impact of channel function performance on relationship quality, which is moderated by the extent dependence structure of the relationship.Buyer behavior, supplier performance, co-dependency, supply design, profit optimization, buyer value, market coverage, conformance, supply quality

Effects of Customer Services Efficiency and Market Effectiveness on Dealer Performance

Market orientation is positively associated with performance of dealers in terms of customer service quality, growth in sales and increase in market share. This paper aims at analyzing the impact of market orientation strategies and performance of customer services on customer acquisition, retention and sales of automobiles, which reveals overall performance of the automobile dealers in Mexico. Discussion in the paper also comprehends understanding on customer-dealer relationship in the automobile market segment referring to the key factors which establish services quality encompassing tangibility, responsiveness, trust, accuracy and empathy. The results of the study reveal that the customers perceive better quality of the relationship in a given frame of functions that are performed effectively by the dealer lowering the extent of conflicts thereof. High conformance quality services of dealers and value added customer relationship to offer high customer satisfaction develop life time customer value and strengthen the customer-dealer relationship.Market orientation, customer services, services quality, dealer performance, customer value, competitive strategies

Bridging Sales and Services Quality Functions in Retailing of High Technology Consumer Products

High technology product sales are positively associated with performance of retailers and distributors in terms of customer service quality, growth in sales and increase in market share. This paper aims at analyzing the impact of retail sales strategies and performance of customer services on customer acquisition, retention and sales growth of high technology consumer products of the high technology consumer products retailers and distributors in Mexico. This paper discusses the triadic relationship of customer- retailer-distributor in the high technology consumer products market segment in reference to the SERVQUAL factors which establish services quality encompassing tangibility, responsiveness, trust, accuracy and empathy. Results of the study reveal that the customers perceive better quality of the relationship in a given frame of functions that are performed effectively by the distributor lowering the extent of conflicts thereof. The discussions in the paper argue that high conformance of quality services delivered by the distributors and value added customer relationship is instrumental for retailers in acquiring new customers and retaining existing customer by augmenting the customer life time value.High technology products sales, customer services, SERVQUAL, customer-distributor relationship, customer value, distributor performance

Can Auditors Be Independent? - Experimental Evidence

The Sarbanes-Oxley Act of 2002 has transformed the institutional environment in the US by making the audit committee responsible for the appointment, compensation and oversight of the auditor. We examine whether this institutional change successfully resolves the alleged problem of an unconscious favoring of the management (Bazerman et al. 1997, 2002, 2006) by changing the effects of auditors’ economic incentives and psychological pressure. In our experimental design, we make use of the particular features of the German institutional setting as it enables us to manipulate the client of the auditor in a realistic and clear-cut way. 72 German auditors with at least two years of job experience participated in our experiment. Following Turner (2001), we distinguish in our analyses between belief tasks (e.g. evidence evaluation) and action tasks (e.g. audit opinion). Our findings imply that certain institutional features seem to be helpful in ensuring auditor independence. First, we find that auditors demonstrate professional scepticism in belief tasks. This seems to counteract any potentially negative effect of the acceptability heuristic in actions tasks. Second, experience helped auditors in coping with psychological pressure. Third, making the auditor accountable to a supervisory board was helpful in reducing the risk that financial considerations would impair auditor independence.

A collaborative platform for integrating and optimising Computational Fluid Dynamics analysis requests

A Virtual Integration Platform (VIP) is described which provides support for the integration of Computer-Aided Design (CAD) and Computational Fluid Dynamics (CFD) analysis tools into an environment that supports the use of these tools in a distributed collaborative manner. The VIP has evolved through previous EU research conducted within the VRShips-ROPAX 2000 (VRShips) project and the current version discussed here was developed predominantly within the VIRTUE project but also within the SAFEDOR project. The VIP is described with respect to the support it provides to designers and analysts in coordinating and optimising CFD analysis requests. Two case studies are provided that illustrate the application of the VIP within HSVA: the use of a panel code for the evaluation of geometry variations in order to improve propeller efficiency; and, the use of a dedicated maritime RANS code (FreSCo) to improve the wake distribution for the VIRTUE tanker. A discussion is included detailing the background, application and results from the use of the VIP within these two case studies as well as how the platform was of benefit during the development and a consideration of how it can benefit HSVA in the future