Search results for "Information system"

The Design Science Research Process : A Model for Producing and Presenting Information Systems Research

2006

The authors design and demonstrate a process for carrying out design science (DS) research in information systems and demonstrate use of the process to conduct research in two case studies. Several IS researchers have pioneered the acceptance of DS research in IS, but in the last 15 years little DS research has been done within the discipline. The lack of a generally accepted process for DS research in IS may have contributed to this problem. We sought to design a design science research process (DSRP) model that would meet three objectives: it would be consistent with prior literature, it would provide a nominal process model for doing DS research, and it would provide a mental model for p…

Information system supported project estimation and measurement

2006

System for Executing Encrypted Java Programs

2017

Teoría de la educación : educación y cultura en la sociedad de la información

2011

Se exponen las principales perspectivas en el estudio del comportamiento informacional: la perspectiva del usuario y la del sistema. En el primer caso, se asume una visión global del proceso de búsqueda de información y se desarrollan modelos teóricos y metodológicos para guiar la investigación en este campo. Se presentan como ejemplo la teoría del Sense-Making de Brenda Dervin y el modelo de Proceso de Búsqueda de Información de Carol Kuhlthau. En el segundo caso, se asume una perspectiva parcial del proceso de búsqueda de información, centrándose fundamentalmente en las transacciones entre usuario y el sistema o entre el usuario y la información. Se describen los estudios del uso de recur…

ITKA111 Oliosuuntautunut analyysi ja suunnittelu

2009

Icon-based language in requirements development

2012

An Information Systems Design Theory for Integrated Requirements and Release Management Systems

2009

High-tech companies need to collect and analyze requirements and allocate them to appropriate product releases in market-driven product development. Development activities are typically scattered across multiple sites and involve multiple partners in different countries, complicating requirements and release management. Flexible, scalable, and secure groupware-based support for the activities provides substantial payoffs. Yet, the extant literature provides little theoretical guidance for designing and using requirements and release management systems in multi-site, multi-partner environments. This article develops the meta-requirements and a meta-design of an information systems design the…

Mapping of Biomass Residues for Potential Energy Generation from the Wine-Growing Sector in the Provinces of Palermo and Trapani

2019

This paper is based on results obtained during the project Vienergy (Interreg Italia-Malta programme 2007-2013) and contains data on the potential energy generation of biomass residues following pruning from vineyards located within the provinces of Trapani and Palermo. Analysis of the energy potential, following microgasification tests and heat production related to the biomass, included a preliminary mapping of vineyards in the area and an assessment of the total biomass available. Vineyard mapping was carried out using remote-sensing technologies: images were acquired and analysed using Landsat satellite; spectroradiometric calibration then took place using various targets obtained from …

Optimal Resource Allocation in Multi-Hop Networks: Contention vs. Scheduling

2014

CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is actually the most used method in ad-hoc networks for transmitting on a contending medium, even if it shows poor performance in presence of hidden nodes. To increase performance, we propose an algorithm that combines CSMA and TDMA (Time Division Multiple Access) approaches. The adopted solution consists of grouping contending nodes in non-interfering subsets and granting a different numbers of time slots to different groups, while using the CSMA to manage medium access among nodes belonging to the same subset. An optimization procedure to assign the time slots to each subset of nodes and to find an equilibrium between contention …

A Systematic Literature Review and Analysis of Mobile Retailing Adoption

2019

The purpose of this study is to provide a comprehensive updated review and analysis of mobile retailing adoption. Although research on mobile channel utilization has increased significantly in recent years and many new studies on this topic have been published, research has not yet provided a clear structure regarding how consumers’ expectations have advanced in relation to mobile retailing adoption. Thus, this study synthetizes the mobile retail adoption literature and develops a framework for it. Our systematic literature review analyzed 94 scientific articles that were published between 2010 and 2018 to determine customers’ different expectations and demands during different mobile chann…