925 resultados para digital business


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Dissertação de Mestrado em Informação e Sistemas Empresariais apresentada à Universidade Aberta em associação com o Instituto Superior Técnico

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Rating systems are used by many websites, which allow customers to rate available items according to their own experience. Subsequently, reputation models are used to aggregate available ratings in order to generate reputation scores for items. A problem with current reputation models is that they provide solutions to enhance accuracy of sparse datasets not thinking of their models performance over dense datasets. In this paper, we propose a novel reputation model to generate more accurate reputation scores for items using any dataset; whether it is dense or sparse. Our proposed model is described as a weighted average method, where the weights are generated using the normal distribution. Experiments show promising results for the proposed model over state-of-the-art ones on sparse and dense datasets.

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With the level of digital disruption that is affecting businesses around the globe, you might expect high levels of Governance of Enterprise Information and Technology (GEIT) capability within boards. Boards and their senior executives know technology is important. More than 90% of boards and senior executives currently identify technology as essential to their current businesses, and to their organization’s future. But as few as 16% have sufficient GEIT capability. Global Centre for Digital Business Transformation’s recent research contains strong indicators of the need for change. Despite board awareness of both the likelihood and impact of digital disruption, things digital are still not viewed as a board-level matter in 45% of companies. And, it’s not just the board. The lack of board attention to technology can be mirrored at senior executive level as well. When asked about their organization’s attitude towards digital disruption, 43% of executives said their business either did not recognise it as a priority or was not responding appropriately. A further 32% were taking a “follower” approach, a potentially risky move as we will explain. Given all the evidence that boards know information and technology (I&T***) is vital, that they understand the inevitably, impact and speed of digital change and disruption, why are so many boards dragging their heels? Ignoring I&T disruption and refusing to build capability at board level is nothing short of negligence. Too many boards risk flying blind without GEIT capability [2]. To help build decision quality and I&T governance capability, this research: • Confirms a pressing need to build individual competency and cumulative, across-board capability in governing I&T • Identifies six factors that have rapidly increased the need, risk and urgency • Finds that boards may risk not meeting their duty of care responsibilities when it comes to I&T oversight • Highlights barriers to building capability details three GEIT competencies that boards and executives can use for evaluation, selection, recruitment and professional development.

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[ES] El presente TFG plantea una reflexión sobre la puesta en marcha de un negocio digital en el contexto empresarial de hoy en día. Se trata con ello de identificar pistas que resulten clave en el proceso de arranque de un negocio online exitoso. Para ello, se estudia el contexto empresarial en la era digital, así como la evolución de este en los últimos años con el paso de negocios puramente offline, a una combinación de estos, o a negocios puramente online. Una vez puestos en situación, se analizan algunos factores que resultan clave para iniciar un negocio online, como son los beneficios que estos ofrecen, así como los errores más comunes cometidos en negocios digitales. En este contexto, analizamos las estrategias empresariales seguidas por negocios digitales de éxito, considerando algunos ejemplos de los diferentes modelos de negocios digitales existentes hasta la fecha. El objetivo último es extraer algunas conclusiones generales que permitan orientar las decisiones de puesta en funcionamiento de un negocio digital.

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The system described herein represents the first example of a recommender system in digital ecosystems where agents negotiate services on behalf of small companies. The small companies compete not only with price or quality, but with a wider service-by-service composition by subcontracting with other companies. The final result of these offerings depends on negotiations at the scale of millions of small companies. This scale requires new platforms for supporting digital business ecosystems, as well as related services like open-id, trust management, monitors and recommenders. This is done in the Open Negotiation Environment (ONE), which is an open-source platform that allows agents, on behalf of small companies, to negotiate and use the ecosystem services, and enables the development of new agent technologies. The methods and tools of cyber engineering are necessary to build up Open Negotiation Environments that are stable, a basic condition for predictable business and reliable business environments. Aiming to build stable digital business ecosystems by means of improved collective intelligence, we introduce a model of negotiation style dynamics from the point of view of computational ecology. This model inspires an ecosystem monitor as well as a novel negotiation style recommender. The ecosystem monitor provides hints to the negotiation style recommender to achieve greater stability of an open negotiation environment in a digital business ecosystem. The greater stability provides the small companies with higher predictability, and therefore better business results. The negotiation style recommender is implemented with a simulated annealing algorithm at a constant temperature, and its impact is shown by applying it to a real case of an open negotiation environment populated by Italian companies

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In the context of the digital business ecosystems, small organizations cooperate between them in order to achieve common goals or offer new services for expanding their markets. There are different approaches for these cooperation models such as virtual enterprises, virtual organizations or dynamic electronic institutions which in their lifecycle have in common a dissolution phase. However this phase has not been studied deeply in the current literature and it lacks formalization. In this paper a first approach for achieving and managing the dissolution phase is proposed, as well as a CBR process in order to support it in a multi-agent system

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Para maximizar los beneficios, una compañía fundamenta sus acciones en ciertas estrategias que ayudan a cumplir su objetivo de generar utilidades. Entre las diferentes acciones que una organización puede utilizar, están las de responsabilidad social y las de relaciones estratégicas con la comunidad. Partiendo de la definición de comunidad, pasando por una descripción de responsabilidad social y sus diferentes formas de aplicabilidad dentro de una empresa, hasta la definición de relación estratégica con la comunidad; esta investigación dirige sus esfuerzos a determinar el vínculo que existe entre los conceptos de responsabilidad social y relación estratégica comunitaria. Adicionalmente, se plantea que otras estrategias de relacionamiento con clientes, como el mercadeo relacional o el CRM, las cuales enfocan sus esfuerzos en conocer a cada uno de los clientes de una compañía para plantear una oferta acorde a sus necesidades, no son muy efectivas a la hora de crear un vínculo emocional con la comunidad.

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The logistics of the aerospace aftermarket raises a number of very interesting challenges from the perspective of electronic contracting. This is a highly dynamic domain, where contracts are established between airlines and engine manufacturers, as well as between engine manufacturers all the way down the supply lines, providing a particularly illustrative showcase for the technologies developed in the CONTRACT project. In this paper, we describe such a domain, as well as our modelling of it as a multiagent simulator where the CONTRACT framework has been used to monitor for compliance with norms.

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Media convergence and newsroom integration have become industry buzzwords as the ideas spread through newsrooms around the world. In November 2007 Fairfax Media in Australia introduced the newsroom of the future model, as its flagship newspapers moved into a purpose-built newsroom in Sydney. News Ltd, the country’s next biggest media group, is also embracing multi-media forms of reporting. What are the implications of this development for journalism? This paper examines changes in the practice of journalism in Australia and around the world. It attempts to answer the question: How does the practice of journalism need to change to prepare not for the future, but for the likely present.

Early in November 2007 The Sydney Morning Herald, the Australian Financial Review and the Sun-Herald moved into a new building dubbed the ‘newsroom of the future’ at One Darling Island Road in Sydney’s Darling Harbour precinct. Phil McLean, at the time Fairfax Media’s group executive editor and the man in charge of the move, said three quarters of the entire process involved getting people to ‘think differently’ – that is, to modify their mindset so they could work with multi-media.

The new newsroom symbolised the culmination of a series of major changes at Fairfax. In August 2006 the traditional newspaper company, John Fairfax Ltd, changed its name to Fairfax Media to reflect its multi-platform future. In March 2007 Fairfax launched Australia’s first online-only daily publication in Queensland, brisbanetimes.com.au. In May 2007 Fairfax completed its merger with Rural Press to become the biggest media company in Australasia, with annual revenues of about $2.5 billion and market capitalisation of about $7 billion. Two months later Fairfax got even bigger when it acquired at least one radio station in all Australian capital cities plus television studios when it bought Southern Cross Broadcasting. Fairfax is expected to bid for one of the two digital television licences made available by the changes to media ownership laws promulgated in May 2007.

The aim in moving Fairfax from a print to a multi-platform company was to reach as large an audience as possible. ‘We have a total readership in print of over 4 million per day and online of over 5 million per month’, CEO David Kirk said at the time of the Rural Press merger. ‘Our brand of quality, independent, balanced journalism will serve and support more communities than ever’ (Kirk 2007). A few months earlier chairman Ron Walker had written in the company’s annual report: ‘Fairfax is evolving into a truly digital media company’ (2006: 2). Within five years Fairfax would be a significantly bigger Internet company that distributed its content ‘over more media’, Kirk wrote in the same report (2006: 5).

Kirk developed a three-pronged strategy. The first part of the strategy involved the need to ‘defend and grow our newspaper publishing businesses’ – that is, to consolidate and develop the existing newspapers, whose circulations were holding steady during the week and improving on Saturdays. The second part involved plans to ‘accelerate the revenue and earnings of our digital business’. The third part was ‘to build a digital media company for the twenty-first century’ (Fairfax annual report 2006: 3). In June 2007 Kirk appointed Tim Mannes project leader for the Fairfax Media-Rural Press integration. ‘The purpose of the integration work is to bring the two companies together and build what is truly Australasia’s leading media company’, Mannes wrote in a memo to all staff on 7 June 2007. ‘It’s vital throughout this process that we maintain continuity and momentum and protect the interests and needs of our customers’ (2007: 1).

The business model appears attractive. Kirk said Fairfax’s increased scale and diversity would mean it relied less on classified lineage advertising in major metropolitan newspapers, so it could ‘rapidly develop the best online response to changing media advertising patterns’. In the two years to 2006, online’s contribution to Fairfax’s profits had grown from 1 per cent to 14 per cent with ‘much more to come’. Online’s share of the national advertising pie had grown from 2 per cent in 2002 to 10 per cent in 2006 (Beverley 2007: 6) and had jumped to 14 per cent in 2007. Analysts said they were happy with Fairfax’s move ‘from a newspaper company to a media company’ and banks such as Credit Suisse upgraded their profits forecast (AFR 19 September 2007: 37).

Planning for the move to One Darling Island Road in Sydney’s Darling Harbour started early in 2006. Fairfax CEO David Kirk took personal responsibility. He and chairman Ron Walker visited integrated sites around the world, along with a group of editorial bosses. The favoured site was The Daily Telegraph in London, which embraced convergence from June 2006. CEO Murdoch McLennan hired a consultant from Ifra, Dr Dietmar Schantin, director of the Newsplex, to facilitate the move from mono-media to multi-media at The Telegraph. Schantin said change was less about new technologies and more about altering the established mindset. The focus must be on the audience: ‘The whole idea of audience orientation seems to be quite new for some newspapers. In the past it was more “we know what is good for our readers and so we distribute the content”.’ Newspapers were a service industry whose service was information and news, he said. Newspapers had to learn to ‘serve’ its audience with the things the audience wanted to know, on any appropriate platform. ‘We start from the audience. What they want is a very important point. That does not mean that a newspaper should just do what the audience wants. The newspaper [also] needs to stick
to its core values’ (Luft 2006, Coleman 2007: 5).

Tom Curley, CEO of the world’s biggest newsgathering organisation, Associated Press, gave an important speech to the annual Knight-Bagehot dinner in New York in November 2007. The news industry had come to a fork in the road and needed to take bold steps to secure the audiences and funding to support journalism’s essential role for both the economy and democracy, he said. Otherwise the media industry would find itself ‘on an ugly path to obscurity’. He similarly emphasised the need to serve the audience: ‘Our focus must be on becoming the very best at filling people’s 24-hour news needs. That’s a huge shift from the we-know-best, gatekeeper thinking. Sourcing, fact gathering, researching, storytelling, editing [and] packaging aren’t going away’
(Curley 2007).

Kirk appointed a ‘newsroom of the future’ committee from editorial (reporters and photographers), IT and HR. The committee initiated a study tour by editorial executives of leading integrated and converged newsrooms in the UK and the US in April 2007. This became known as the ‘Tier 1’ course and involved the editor and deputy editor of The Age, and the news editor of The Sydney Morning Herald. The Herald’s editor went to the annual conference of the World Association of Newspapers in Cape Town, South Africa in June 2007 because that event featured convergence as one of its main themes (PANPA Bulletin June 2007: 6). The committee designed a two-day awareness course for senior editorial managers, known as ‘Tier 2’, that was run in Sydney in July 2007. The ‘Tier 3’ program for all editorial staff started in August 2007 and this ‘multi-media awareness program’ continued until the end of the year. A ‘Tier 4’ course for about 10 per cent of editorial staff (about 40 journalists), where they learned a range of multi-media skills, was scheduled to start after the Beijing Olympics in 2008. The author facilitated most of the Tier 2 and 3 courses.

The Tier 3 and 4 courses have profound implications for journalism education in Australia because they represent the start of major changes to how journalists work in Australia. The process reflects evolution in newsroom practices around the world. In November 2006 Ifra, the international media research company, asked newspaper executives worldwide about their priorities for 2007. The survey attracted 240 responses from 43 countries and results appeared in January 2007. Integration, editorial convergence and cross-media strategies attracted the most attention. Four in five executives rated it one of their top priorities, and half made it their main priority in terms of allocating ‘significant’ funds (Ifra 2007: 34). Ifra repeated the survey in November 2007 and published the results in January 2008. Expanding web strategies was first on the list for 2008, just ahead of editorial convergence strategies, which topped the list in 2007. Improving video and audio content jumped 14 places, and mobile phone strategies leapt 9 places between 2007 and 2008 to be near the top of the list (Ifra 2008: 8).

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Após endereçar questões relativas à integração de suas funções internas, a empresa está se voltando para a criação de um ambiente externo interconectado com seus parceiros de negócio. Torna-se imperativo o aperfeiçoamento do relacionamento com estes parceiros, por meio de processos automatizados, que gerenciam as Cadeias de Suprimento e Distribuição formadas. A Tecnologia de Informação, ao permitir a conexão de processos e a interoperação de sistemas, passa a ser um instrumento essencial nesta transformação. Especificamente, o ambiente digital de negócio construído sobre a Infovia, formada principalmente pela Internet e seus serviços, como a WWW, confere avanços consideráveis ao relacionamento dentro da organização, entre organizações e entre estas e seus clientes. A esta transformação do negócio, baseada na Tecnologia de Informação, conectado às redes de comunicação, chama-se Comércio Eletrônico. Com base no conhecimento consolidado pelo referencial teórico disponível e nos resultados obtidos com o estudo de caso conduzido, o autor identifica e categoriza as influências do Comércio Eletrônico nos processos de compra da Cadeia de Suprimentos na indústria química, estruturando estas influências em relação aos modelos de negócios digitais conhecidos.

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As the user base of the Internet has grown tremendously, the need for secure services has increased accordingly. Most secure protocols, in digital business and other fields, use a combination of symmetric and asymmetric cryptography, random generators and hash functions in order to achieve confidentiality, integrity, and authentication. Our proposal is an integral security kernel based on a powerful mathematical scheme from which all of these cryptographic facilities can be derived. The kernel requires very little resources and has the flexibility of being able to trade off speed, memory or security; therefore, it can be efficiently implemented in a wide spectrum of platforms and applications, either software, hardware or low cost devices. Additionally, the primitives are comparable in security and speed to well known standards.

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China’s Creative Industries explores the role of new technologies, globalization and higher levels of connectivity in re-defining relationships between ‘producers’ and ‘consumers’ in 21st century China. The evolution of new business models, the impact of state regulation, the rise of entrepreneurial consumers and the role of intellectual property rights are traced through China’s film, music and fashion industries. The book argues that social network markets, consumer entrepreneurship and business model evolution are driving forces in the production and commercialization of cultural commodities. In doing so it raises important questions about copyright’s role in the business of culture, particularly in a digital age.

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The competent leadership of digital transformation needs to involve the board of directors. The reported lack of such capability in boards is becoming a pressing issue. A part of leadership in such transformation is the board of director’s competence to lead Enterprise Business Technology Governance (EBTG). In this paper we take the position that EBTG competencies are essential in boards, because competent EBTG has been shown to contribute to increased revenue, profit, and returns. We update and expand on the results of a multi-method approach to the development of a set of three board of director competencies needed for effective EBTG.