ENTERprise Information Systems
International Conference, CENTERIS 2011, Vilamoura, Portugal, October 5-7, 2011, Proceedings, Part II

Maria Manuela Cruz-Cunha, João Varajão, Philip Powell, Ricardo Martinho

Pozycje od 1 do 12 spośród 12 wyników

rozdział

Cloud Computing: A Platform of Services for Services

Nuno Sénica, Cláudio Teixeira, Joaquim Sousa Pinto

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 91-100

This article describes the state of the art of cloud computing, focusing on its features and on the variety of services and applications that can be placed inside a cloud system, such as databases, processing, cloud gaming, storage and backup, etc.. This article also assesses and highlights the advantages and disadvantages of using cloud computing by companies and provides an overview of cloud computing...

rozdział

Cloud Computing to Support the Evolution of Massive Multiplayer Online Games

Dario Maggiorini, Laura Anna Ripamonti

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 101-110

In these recent years, with the gain in popularity of online games, we are witnessing a progressive increment in the number of massive multiplayer online games available over the Internet. Given the scalability requirements imposed by a huge population of users over an extended length of time, game providers face the major challenge of long-term IT infrastructures dimensioning. In particular, the...

rozdział

Quality Evaluation Methods to Improve Enterprise VoIP Communications

Filipe Neves, Salviano Soares, Pedro Assuncao, Filipe Tavares, więcej

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 111-119

In the last few years there has been a dramatic development in voice communications technology with a significant move towards Voice over the Internet Protocol (VoIP). Since the Internet was primarily designed as a besteffort technology, good quality conversation and intelligibility are not guaranteed. In this paper we address quality evaluation of voice communications in the context of modern enterprises...

rozdział

Survey on Anti-spam Single and Multi-objective Optimization

Iryna Yevseyeva, Vitor Basto-Fernandes, José R. Méndez

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 120-129

In this paper anti-spam filtering is presented as a cumbersome service, as opposing to a software product perspective. The human effort for setting up, adaptation, maintenance and tuning of filters for spam detection is stressed. Because choosing the proper scores (relevance) for the spam filters is essential to the accuracy of the anti-spam system and one of the biggest challenges for the Apache...

rozdział

Location-Based Service for a Social Network with Time and Space Information

Ana Filipa Nogueira, Catarina Silva

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 130-140

The proliferation of social networking and sharing of all kinds of information, including location information, triggered the emergence of new services, including location-based services. In this paper we enhance location-based services by adding a temporal component, allowing information about past and future locations to be considered. Such services may be important for those who want other...

rozdział

Citizens@City Mobile Application for Urban Problem Reporting

António Miguel Ribeiro, Rui Pedro Costa, Luís Marcelino, Catarina Silva

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 141-150

Urban problems, such as holes in the pavement, poor accesses to wheelchairs or lack of public lighting, are becoming pervasive. Despite the fact that most of these problems directly affect life quality and sometimes even safety, not everyone has the readiness or initiative to report them to the proper authorities. This fact makes these “black spots” difficult to identify and the repairing process...

rozdział

Mobile Multimedia Visiting Guide to Knowledge and Experiences Sharing

Diogo Lopes, Miguel Pragosa, Catarina Silva, Luis Marcelino

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 151-161

The increasing search for applications that enable the sharing of experiences and the absence of applications that motivate the sharing of local knowledge prompted the development of Visit-M. It is a mobile application that allows residents and visitors of a city to share their experiences and knowledge as a community. Visit-M stimulates a strong social participation, enabling contributions of users...

rozdział

Mobile Application Webservice Performance Analysis: Restful Services with JSON and XML

Carlos Rodrigues, José Afonso, Paulo Tomé

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 162-169

Mobile devices are growing on a pace without precedents. It is estimated that by 2013 there will be about 1.1 Billion Smartphones on use. This quick growth on Smartphone numbers and the appearance of marketplaces where mobile applications can easily be bought or downloaded is turning mobile development into a big market. As the number of users grows in a fast pace, so does the demand for new applications,...

rozdział

Error-Detection in Enterprise Application Integration Solutions

Rafael Z. Frantz, Rafael Corchuelo, Carlos Molina-Jim

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 170-179

Enterprise Application Integration (EAI) is a field of Software Engineering. Its focus is on helping software engineers integrate existing applications at a sensible costs, so that they can easily implement and evolve business processes. EAI solutions are distributed in nature, which makes them inherently prone to failures. In this paper, we report on a proposal to address error detection in EAI solutions...

rozdział

Back-Propagation Artificial Neural Network for ERP Adoption Cost Estimation

Mohamed T. Kotb, Moutaz Haddara, Yehia T. Kotb

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 180-187

Small and medium size enterprises (SMEs) are greatly affected by cost escalations and overruns Reliable cost factors estimation and management is a key for the success of Enterprise Resource Planning (ERP) systems adoptions in enterprises generally and SMEs specifically. This research area is still immature and needs a considerable amount of research to seek solid and realistic cost factors estimation...

rozdział

TCP, UDP and FTP Performances of Laboratory Wi-Fi IEEE 802.11g WEP Point-to-Point Links

J. A. R. Pacheco Carvalho, H. Veiga, N. Marques, C. F. Ribeiro Pacheco, więcej

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 188-195

Wireless communications, e.g. Wi-Fi, have been increasingly important in the context of networked and virtual organizations and enterprise information systems. Performance is an issue of fundamental importance, resulting in more reliable and efficient communications, therefore improving enterprise information system yield. Security is equally important. Laboratory measurements are made about several...

rozdział

Systems of Synchronism in Optical Digital Communications

António D. Reis, José F. Rocha, Atílio S. Gameiro, José P. Carvalho

Communications in Computer and Information Science > ENTERprise Information Systems > Technical Aspects and Emerging Technologies > 196-205

To transmit fidelity the information, at long distances, was from the beginning, a great human dream. The information signal, when transmitted from the emitter to the receiver, suffers attenuation and distortion. Then, it is necessary to use frequently a regenerator to restore the original amplitude and also to retime the bit original period. The amplitude can be restored with an amplifier with AGC...

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ANDROID (2)
CLOUD COMPUTING (2)
MOBILE APPLICATIONS (2)
ANTI-SPAM (1)
COST ESTIMATION (1)
DAAS (1)
DEPENDABILITY AND RESILIENCE (1)
DIGITAL TELECOMMUNICATIONS (1)
ENTERPRISE APPLICATION INTEGRATION (1)
ENTERPRISE VOICE COMMUNICATIONS (1)
ERP (1)
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ERROR MONITORING (1)
IAAS (1)
IEEE 802.11G (1)
JSON (1)
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LOCATION-BASED SERVICES (1)
MASSIVE MULTIPLAYER ONLINE GAMES (1)
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MOS (1)
MULTI-OBJECTIVE (1)
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SMES (1)
SOCIAL COMMUNITIES (1)
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SYNCHRONISM (1)
URBAN PROBLEM REPORTING (1)
VOICE QUALITY (1)
WEBSERVICES (1)
WEP POINT-TO-POINT LINKS (1)
WI-FI (1)
WIRELESS NETWORK LABORATORY PERFORMANCE (1)
WLAN (1)
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ENTERprise Information Systems
International Conference, CENTERIS 2011, Vilamoura, Portugal, October 5-7, 2011, Proceedings, Part II