Determining the Trustworthiness of New Electronic Contracts

Expressing contractual agreements electronically potentially allows agents to automatically perform functions surrounding contract use: establishment, fulfilment, renegotiation etc. For such automation to be used for real business concerns, there needs to be a high level of trust in the agent-based system. While there has been much research on simulating trust between agents, there are areas where such trust is harder to establish. In particular, contract proposals may come from parties that an agent has had no prior interaction with and, in competitive business-to-business environments, little reputation information may be available. In human practice, trust in a proposed contract is determined in part from the content of the proposal itself, and the similarity of the content to that of prior contracts, executed to varying degrees of success. In this paper, we argue that such analysis is also appropriate in automated systems, and to provide it we need systems to record salient details of prior contract use and algorithms for assessing proposals on their content. We use provenance technology to provide the former and detail algorithms for measuring contract success and similarity for the latter, applying them to an aerospace case study.

Electronic Business Contracts between Services

Electronic contracts mirror the paper versions exchanged between businesses today, and offer the possibility of dynamic, automatic creation and enforcement of restrictions and compulsions on service behaviour that are designed to ensure business objectives are met. Where there are many contracts within a particular application, it can be difficult to determine whether the system can reliably fulfil them all, yet computer-parsable electronic contracts may allow such verification to be automated. In this chapter, we describe a conceptual framework and architecture specification in which normative business contracts can be electronically represented, verified, established, renewed, and so on. In particular, we aim to allow systems containing multiple contracts to be checked for conflicts and violations of business objectives. We illustrate the framework and architecture with an aerospace aftermarket example.

Using Normative Markov Decision Processes for Evaluating Electronic Contracts: A Case Study in a Simulated Aerospace Aftermarket

Before signing electronic contracts, a rational agent should estimate the expected utilities of these contracts and calculate the violation risks related to them. In order to perform such pre-signing procedures, this agent has to be capable of computing a policy taking into account the norms and sanctions in the contracts. In relation to this, the contribution of this work is threefold. First, we present the Normative Markov Decision Process, an extension of the Markov Decision Process for explicitly representing norms. In order to illustrate the usage of our framework, we model an example in a simulated aerospace aftermarket. Second, we specify an algorithm for identifying the states of the process which characterize the violation of norms. Finally, we show how to compute policies with our framework and how to calculate the risk of violating the norms in the contracts by adopting a particular policy.

Robert Cornell, Technical Editor, Electronic Technician Magazine

New York Trade School graduate Robert Cornell is pictured at his desk in his position of Technical Editor, Electronic Technician Magazine. Original caption reads "Robert Cornell - Advanced Television 1954, was appointed Technical Editor of Electronic Technician Magazine in 1956 and has served with distinction since. He is President of CETA (Certified Electronic Technicians Association), which consists of alumni of the New York Trade School who are graduates of the Advanced Television Course. He was recently invited to serve a a member of the Attorney General's Committee seeking to establish safeguards to protect the public in the field of television servicing." Black and white photograph with caption to glued to reverse.

Model Configuration And Data Management In The Short-Term Water Information Forecasting Tools

The Short-term Water Information and Forecasting Tools (SWIFT) is a suite of tools for flood and short-term streamflow forecasting, consisting of a collection of hydrologic model components and utilities. Catchments are modeled using conceptual subareas and a node-link structure for channel routing. The tools comprise modules for calibration, model state updating, output error correction, ensemble runs and data assimilation. Given the combinatorial nature of the modelling experiments and the sub-daily time steps typically used for simulations, the volume of model configurations and time series data is substantial and its management is not trivial. SWIFT is currently used mostly for research purposes but has also been used operationally, with intersecting but significantly different requirements. Early versions of SWIFT used mostly ad-hoc text files handled via Fortran code, with limited use of netCDF for time series data. The configuration and data handling modules have since been redesigned. The model configuration now follows a design where the data model is decoupled from the on-disk persistence mechanism. For research purposes the preferred on-disk format is JSON, to leverage numerous software libraries in a variety of languages, while retaining the legacy option of custom tab-separated text formats when it is a preferred access arrangement for the researcher. By decoupling data model and data persistence, it is much easier to interchangeably use for instance relational databases to provide stricter provenance and audit trail capabilities in an operational flood forecasting context. For the time series data, given the volume and required throughput, text based formats are usually inadequate. A schema derived from CF conventions has been designed to efficiently handle time series for SWIFT.

Brave New World, 2050: The Implications of Shifting to Electronic Collections

This futuristic article discusses the shift in academic and research libraries to electronic collections in the context of information access, costs, publication models, and preservation of content. Certain factors currently complicate the shift to electronic formats and challenge their widespread acceptance. Future scenarios spanning skill ecosystems, technologies and workflows, and societal implications are explored as logical outgrowths of present circumstances.

April 2000: Internet Caveats, Electronic Classroom

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Ah, Libraries: How I Love the Smell of... Electronic Access?!

In the olden days, we Baby-Boomers would walk into our university or college libraries and pause just long enough to take in that wonderful smells of high grade cowhide leather and aging papyrus before rushing off to study. There was something about opening any leather bound edition of anything and being transported by the smell to some distant land, not unlike Charles Swann in Marcel Proust’s famous French novel, A La Recherché du Temps Perdu, Remembrance of Things Past.

Heranças patrimonialistas, (dis)funções burocráticas, práticas gerenciais e os novos arranjos do estado em rede: entendendo a configuração atual da administração pública brasileira

O objetivo do trabalho é compreender a configuração atual da administração pública brasileira a partir da identificação dos seus atributos caracterizadores, tomando como ponto de partida a rejeição da ideia de modelos rígidos e de ruptura entre esses modelos. Os caminhos teóricos percorridos, e que culminaram com a construção de um quadro teórico preliminar, contemplaram inicialmente: a análise histórico-conceitual das relações entre sociedade, Estado e administração pública; a análise da formação do Estado brasileiro desde o período colonial até os dias atuais; a apresentação das configurações da administração pública brasileira, consagradas pela literatura e seus respectivos atributos. Em seguida, foram resgatadas as bases teóricas da administração pública patrimonial, desde a ideia weberiana de dominação patrimonial até as contribuições de alguns interpretes do pensamento social brasileiro à luz da experiência nacional. Foram apresentadas as bases teóricas da administração pública burocrática, desde o tipo ideal weberiano de dominação racional-legal até a releitura do seu processo de implementação e desenvolvimento no Brasil. Também foram expostas as bases teóricas da administração pública gerencial, desde sua origem a nível mundial até os efeitos de seu marco inaugural no Brasil, o Plano Diretor da Reforma do Aparelho do Estado. A pesquisa, predominantemente qualitativa, assumiu três tipologias: bibliográfica, documental e de campo, permitindo o emprego da triangulação. A pesquisa de campo processou-se por meio de nove entrevistas, com roteiro semi-estruturado, com experts em administração pública brasileira. Para a pesquisa documental, foram selecionadas, primordialmente fontes primárias, com ênfase em documentos oficiais, mas também matérias e reportagens em sites, jornais e revistas. Após a análise do conteúdo das entrevistas e dos documentos, chegou-se a quatro eixos temáticos, cada qual com suas respectivas unidades de significado, que permitiram identificar os atributos presentes na administração pública brasileira e definir sua configuração, são eles: a) heranças patrimonialistas, sendo elas o mandonismo (a personalização do poder), o clientelismo, o favoritismo e a cultura da corrupção; b) (dis)funções burocráticas, sendo elas o formalismo, a hierarquia de cargos e funções, a profissionalização do quadro administrativo e a (im)pessoalidade); c) práticas gerenciais, sendo elas a busca da efetividade, as técnicas do management, a governança e a gestão transparente e participativa; e d) novos arranjos do Estado em rede, sendo elas o Estado Global, a cultura da virtualidade, a lógica das redes e o governo eletrônico. Esses eixos permitiram a construção de um quadro final de interpretações que demonstra a presença de atributos patrimonialistas, burocráticos e gerenciais na administração pública brasileira, e também atributos do que se chama de administração pública em rede, principal achado da pesquisa, o que explica a sua configuração múltipla.

Antecedents of e-loyalty and electronic word-of-mouth

O objetivo principal da dissertação foi o de examinar a relação entre lealdade (e-loyalty) e o boca-a-boca (eWOM) no contexto do varejo eletrônico. Como objetivo secundário, foi feito uma verificação da significância das variáveis preditoras de e-loyalty. Essa pesquisa foi focada em um tipo de produto/serviço: compra de livros através da internet. Duzentos e quarenta e dois questionários online foram respondidos por um público representativo da geração Y (millennials), e rresidentes em diferentes localidades no Brasil e nos Estados Unidos. A análise de dados foi efetuada pela aplicação do método PLS-SEM sobre um modelo de pesquisa cuidadosamente formulado com base em resultados empíricos prévios. Enquanto que a relação entre e-loyalty e eWOM foi classificada como fraca, um ambiente de boca-a-boca online de alta qualidade representou uma variável preditora significativa para o sentimento de e-loyalty. Todas as variáveis preditoras foram classificadas como significativas nesse estudo, sendo que comprometimento tem o efeito mais forte sobre a variável e-loyalty.

Nitretação iônica sem efeito de borda :desenvolvimento e avaliação de uma nova técnica

The ionic nitriding process presents some limitations related with the control of the thickness of the layer and its uniformity. Those limitations that happen during the process, are produced due to edge effects, damage caused by arcing arc and hollow cathode, mainly in pieces with complex geometry and under pressures in excess of 1 mbar. A new technique, denominated ASPN (active screen shapes nitriding) it has been used as alternative, for offering many advantages with respect to dc plasma conventional. The developed system presents a configuration in that the samples treated are surrounded by a large metal screen at high voltage cathodic potencials, (varying between 0 and 1200V) and currents up to 1 A. The sample is placed in floting potential or polarized at relatively lower bias voltages by an auxiliary source. As the plasma is not formed directly in the sample surface but in the metal screen, the mentioned effects are eliminated. This mechanism allows investigate ion of the transfer of nitrogen to the substrate. Optical and electronic microscopy are used to exam morphology and structure at the layer. X-ray difration for phase identification and microhardness to evaluate the efficiency of this process with respect to dc conventional nitriding