Transparent Dynamic reconfiguration for CORBA

Distributed systems with high availability requirements have to support some form of dynamic reconfiguration. This means that they must provide the ability to be maintained or upgraded without being taken off-line. Building a distributed system that allows dynamic reconfiguration is very intrusive to the overall design of the system, and generally requires special skills from both the client and server side application developers. There is an opportunity to provide support for dynamic reconfiguration at the object middleware level of distributed systems, and create a dynamic reconfiguration transparency to application developers. We propose a Dynamic Reconfiguration Service for CORBA that allows the reconfiguration of a running system with maximum transparency for both client and server side developers. We describe the architecture, a prototype implementation, and some preliminary test result

An approach to rollback recovery of collaborating mobile agents

Fault-tolerance is one of the main problems that must be resolved to improve the adoption of the agents' computing paradigm. In this paper, we analyse the execution model of agent platforms and the significance of the faults affecting their constituent components on the reliable execution of agent-based applications, in order to develop a pragmatic framework for agent systems fault-tolerance. The developed framework deploys a communication-pairs independent check pointing strategy to offer a low-cost, application-transparent model for reliable agent- based computing that covers all possible faults that might invalidate reliable agent execution, migration and communication and maintains the exactly-one execution property

Remittance flows to post-conflict states: perspectives on human security and development

This repository item contains a single issue of the Pardee Center Task Force Reports, a publication series that began publishing in 2009 by the Boston University Frederick S. Pardee Center for the Study of the Longer-Range Future.Migrant remittances – that is, money or other goods sent to relatives in the country of origin– play an increasingly central role in post-conflict reconstruction and national development of conflict-affected states. Private remittances are of central importance for restoring stability and enhancing human security in post-conflict countries. Yet the dynamics of conflict-induced remittance flows and the possibilities of leveraging remittances for post-conflict development have been sparsely researched to date. This Pardee Center Task Force Report is the outcome of an interdisciplinary research project organized by the Boston University Center for Finance, Law & Policy, in collaboration with The Frederick S. Pardee Center for the Study of the Longer-Range Future. The Task Force was convened by Boston University development economist John R. Harris and international banking expert Donald F. Terry, and social anthropologist Daivi Rodima-Taylor, Visiting Researcher at the Boston University African Studies Center, served as lead researcher and editor for the report. The Task Force was asked to research, analyze, and propose policy recommendations regarding the role of remittances in post-conflict environments and their potential to serve as a major source of development funds. The report’s authors collectively suggest a broader approach to remittance institutions that provides flexibility to adapt to specific local practices and to make broader institutional connections in an era of growing population displacement and expanding human and capital flows. Conditions for more productive use of migrants’ remittances are analyzed while drawing upon case studies from post-conflict countries in Africa, Asia and Latin America. The papers in this Task Force Report establish the importance of remittances for sustaining local livelihoods as well as rehabilitating institutional infrastructures and improving financial inclusion in post-conflict environments. Highlighting the increasing complexity of global remittance systems, the report examines the growing informality of conflict-induced remittance flows and explores solutions for more efficient linkages between financial institutions of different scales and degrees of formality. It discusses challenges to regulating international remittance transfers in the context of growing concerns about transparency, and documents the increasing role of diaspora networks and migrant associations in post-conflict co-development initiatives. The Task Force Report authors outline the main challenges to leveraging remittances for post-conflict development and make recommendations for further research and policy applications

Middleware Design Framework for Mobile Computing

Mobile computing is one of the recent growing fields in the area of wireless networking. The recent standardization efforts accomplished in Web services, with their XML-based formats for registration/discovery, service description, and service access, respectively UDDI, WSDL, and SOAP, certainly represent an interesting first step towards open service composition, which MA supports for mobile computing are expected to integrate within their frameworks soon. A middle-ware that can work even if the network parameters are changed can be a better solution for successful mobile computing. A middle-ware is proposed for handling the entire existing problem in distributed environment. Middleware is about integration and interoperability of applications and services running on heterogeneous computing and communication devices. The services it provides - including identification, authentication, authorization, soft-switching, certification and security - are used in a vast range of global appliances and systems, from smart cards and wireless devices to mobile services and e-Commerce

The Electronics Sector in Malaysia: A Case Study in Migrant Workers’ Risk of Forced Labor

This document is part of a digital collection provided by the Martin P. Catherwood Library, ILR School, Cornell University, pertaining to the effects of globalization on the workplace worldwide. Special emphasis is placed on labor rights, working conditions, labor market changes, and union organizing.V_2012_Electronics_Sector_Malaysia_Forced_Labor_WP.pdf: 1440 downloads, before Oct. 1, 2020

Fast dynamic deployment adaptation for mobile devices

Mobile devices that are limited in terms of CPU power, memory or battery power are only capable of executing simple applications. To be able to run advanced applications we introduce a framework to split up the application and execute parts on a remote server. In order to dynamically adapt the deployment at runtime, techniques are presented to keep the migration time as low as possible and to prevent performance loss while migrating. Also methods are presented and evaluated to cope with applications generating a variable load, which can lead to an unstable system