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This research performed phase-based studies to determine effective project management tasks, strategies, and outsourcing activities for transportation infrastructure projects. A comprehensive literature review was conducted to discover phase-based project management strategies, tasks, and activities that can be adopted or outsourced by state transportation agencies (STAs), then a survey was designed and distributed nationally through an online platform to STAs. The results of the 96 survey responses were analyzed and demonstrated that team qualifications and environmental planning are the project management strategies that STAs adopt most often. The outcomes of this study will help decision- makers and project managers assess the effects of adopting effective strategies and outsourcing some activities on delivering transportation infrastructure projects on time, within budget, and with the desired level of quality. Key words: transportation infrastructure, cost estimation, management strategy, construction project, project success. Cette recherche a permis de realiser des etudes axees sur les phases pour determiner les taches, les strategies et les activites de sous-traitance efficaces au niveau de la gestion de projets d'infrastructure de transport. Un examen exhaustif de la documentation a ete effectue pour decouvrir les strategies, les taches et les activites de gestion de projet axees sur les phases qui peuvent etre adoptees ou externalisees par les agences de transport d'etat (ATE), puis un sondage a ete concu et distribue a l'echelle nationale au moyen d'une plateforme en ligne pour les ATE. Les resultats des 96 reponses au sondage ont ete analyses et ont demontre que les qualifications de l'equipe et la planification environnementale sont les strategies de gestion de projet que les ATE adoptent le plus souvent. Les resultats de cette etude aideront les decideurs et les gestionnaires de projet a evaluer les effets de l'adoption de strategies efficaces et de la sous-traitance de certaines activites sur la realisation de projets d'infrastructure de transport dans les delais, dans les limites du budget et avec le niveau de qualite souhaite. [Traduit par la Redaction] Mots-cles: infrastructure de transport, estimation des couts, strategie de gestion, projet de construction, reussite du projet., 1. Introduction The number of transportation infrastructure projects in the US has significantly increased over the last decade. State transportation agencies (STAs), including state departments of transportation (DOTs), deal with [...]

Modularization, an important trend in innovation markets, allows for recombination of product components into multiple end-product configurations. Although modularization has consequences for how firms manage their relationships with upstream component suppliers, the governance implications of modularity for innovation sourcing relationships have not been adequately examined in the prior literature. We intend to bridge this gap. We argue that (i) buyer firms employ governance mechanisms (monitoring and socialization) to cope with the strategic hazards of innovation sourcing relationships (knowledge specificity, knowledge asymmetry, and knowledge spillover) and (ii) the consequences of deploying these mechanisms in response to the strategic hazards on relationship performance are contingent upon the degree of modularity of the system in which they are deployed. We provide empirical support for the developed moderated mediation model through an analysis of 194 innovation projects. The developed theory and findings contribute to the governance and modularity literatures. In addition, our findings may help change managers' behaviors: we observe that managers do not consider modularity when selecting governance mechanisms, while our model findings suggest they should., Author(s): Nukhet Harmancioglu [sup.1] , Stefan Wuyts [sup.2] , Peren Ozturan [sup.3] Author Affiliations: (1) grid.15876.3d, 0000000106887552, Koç University, , Istanbul, Turkey (2) grid.29857.31, 0000 0001 2097 4281, Pennsylvania State [...]

The expansion of a telecommunications network faces two sources of uncertainty, which are the demand for traffic that will transit through the expanded network and the outsourcing cost that the [...]

The general trend in data management is to outsource data to 3rd party systems that would provide data retrieval as a service. This approach naturally brings privacy concerns about the (potentially sensitive) data. Recently, quite extensive research has been done on privacy-preserving outsourcing of traditional exact-match and keyword search. However, not much attention has been paid to outsourcing of similarity search, which is essential in content-based retrieval in current multimedia, sensor or scientific data. In this paper, the authors propose a scheme of outsourcing similarity search. They define evaluation criteria for these systems with an emphasis on usability, privacy and efficiency in real applications. These criteria can be used as a general guideline for a practical system analysis and we use them to survey and mutually compare existing approaches. As the main result, the authors propose a novel dynamic similarity index EM-Index that works for an arbitrary metric space and ensures data privacy and thus is suitable for search systems outsourced for example in a cloud environment. In comparison with other approaches, the index is fully dynamic (update operations are efficient) and its aim is to transfer as much load from clients to the server as possible. Keywords: Cloud, EM-Index, Outsourcing, Privacy, Similarity Search, INTRODUCTION With the rapid growth of the volume and diversity of digital data produced by all kinds of commercial, scientific and leisure-time applications, the retrieval in large data sets became [...]

Information technology (IT) infrastructure outsourcing arrangements involve multiple services and processes that are interdependent. The interdependencies pose significant challenges in designing appropriate incentives to influence a provider's effort-allocation decisions. By [...]

This article analytically and experimentally investigates how firms can best capture the business value of 1 information technology (IT) investments through IT contract design. Using a small sample of outsourcing [...]

This paper considers on-demand services and its impact on market structure, firm profitability, and consumer welfare. The unique properties of on-demand services are the conversion of fixed costs to variable [...]

The emergence of information-intensive business process outsourcing (BPO) relationships calls for the study of exchange performance beyond traditional considerations of the contractual structure that facilitates cooperative intent to include the [...]