73 research outputs found

    Towards a framework for work package allocation for GSD

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    Proceeding of: Proceeding of: OTM 2011 Workshops: Confederated International Workshops and Posters: EI2N+NSF ICE, ICSP+INBAST, ISDE, ORM, OTMA, SWWS+MONET+SeDeS, and VADER 2011, Hersonissos, Crete, Greece, October 17-21, 2011Global software development is an inexorable trend in the software industry. The impact of the trend in conventional software development can be found in many of its aspects. One of them is task or work package allocation. Task allocation was traditionally driven by resource competency and availability but GSD introduces new complexities to this process including time-zones differences, costs and cultural differences. In this work a report on the construction of a framework for work-package allocation within GSD projects is presented. This framework lies on three main pillars: individual and organizational competency, organizational customization and sound assessment methods.This work is supported by the Spanish Centro para el Desarrollo TecnolĂłgico Industrial (CDTI) under the Eureka Project E! 6244 PROPS-Tour and the national cooperation project SEM-IDi (IDI-20091150)

    Toxic effects of Pb2+ on growth of cowpea (Vigna unguiculata)

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    A concentration as low as 1 mu M lead (Pb) is highly toxic to plants, but previous studies have typically related plant growth to the total amount of Pb added to a solution. In the present experiment, the relative fresh mass of cowpea (Vigna unguiculata) was reduced by 10% at a Pb2+ activity of 0.2 mu M for the shoots and at a Pb2+ activity of 0.06 mu M for the roots. The primary site of Pb2+ toxicity was the root, causing severe reductions in root growth, loss of apical dominance (shown by an increase in branching per unit root length), the formation of localized swellings behind the root tips (due to the initiation of lateral roots), and the bending of some root tips. In the root, Pb was found to accumulate primarily within the cell walls and intercellular spaces. (C) 2007 Elsevier Ltd. All rights reserved

    Generic Interfaces to Remote Applications in Open Systems

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    Future industrial production and engineering environments will profit substantially from emerging open distributed computer communication network environments. They will, in principle, be able to benefit from a high potential of services available in such environments to support individual client applications. In practice, however, free and flexible client/ server cooperations are frequently hindered by the great and confusing variety of interfaces involved in accessing various and heterogeneous network services

    Strukturierung von Büroaktivitäten

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    Agents, Services, and Electronic Markets: How do they Integrate?

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    Agent-oriented programming (AOP) is a client/server paradigm that currently gains increasing attention. Recently emerging AOP platforms claim to provide suitable technical support for the implementation of electronic market (EM) systems. EM systems allow both demanders and suppliers of services and goods in worldwide communication networks to cooperate freely based on electronic contracting and clearing services. This paper first argues that an open system infrastructure to support the "right" programming paradigm is a necessary but not sufficient condition for fostering dynamic proliferation of EMs: Another important requirement is organizational openess of client and server cooperations. The COSM (Common Open Service Market) infrastructure aims at a system support for such applications. It was designed and implemented to realize flexible means for accessing remote services dynamically in evolving electronic markets. The paper then shows how the COSM infrastructure can be extended by ..

    Lamersdorf: Generic Interfaces to Remote Applications in Open Systems

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    Future industrial production and engineering environments will profit substantially from emerging open distributed computer communication network environments. They will, in principle, be able to benefit from a high potential of services available in such environments to support individual client applications. In practice, however, free and flexible client / server cooperations are frequently hindered by the great and confusing variety of interfaces involved in accessing various and heterogeneous network services. In order to support open client / server cooperations in distributed systems, this contribution proposes a unifying description mechanism for remote services in computer networks. It describes an application oriented generic communication service, which facilitates client / server cooperation in open systems. Most important basis for such a service is a uniform service specification mechanism for open server interfaces. Correspondingly, the paper first specifies a specific service interface description language (SIDL). It then shows how such a service interface description could also be used for automatic creation of serverspecific local human user interfaces. In combination, a generic network interface description language (NIDL) specification, as proposed here, supports client applications in open systems by providing a common mechanism to access and utilize any service available anywhere in the network

    Cooperation Support for an Open Service Market

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    ... This paper seeks to derive design principles for distributed application development from an economics open market analogy. A Service Interface Description Language (SIDL) is presented as the basis for minimizing transition costs for distributed applications. It is used for the trading process as well as the creation of graphical local user interfaces for arbitrary remote services at binding time. Finally, the paper outlines the current status of a distributed prototype system which implements cooperation support for a COS
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