Business Process Management (BPM) [4] é uma forma sistemática e estruturada para analisar, melhorar, controlar e gerenciar processos com a meta de melhorar a qualidade de produtos e serviços [2]. No decorrer da última década, diversos estudos têm apontado para a importância da integração entre modelos de negócios e arquitetura de Tecnologia da Informação (TI) na busca de uma fundação para execução efetiva dos objetivos de negócios [1]. A proposta desta dissertação consiste num método estruturado de modelagem de Arquitetura Corporativa, baseado em perfis UML para modelagem de fluxos de processo de negócio [3], aplicações, dados e infra-estrutura de TI. O método proposto é validado com um estudo de caso no qual é detalhada toda a interdependência entre um processo de negócio e a arquitetura de TI que o suporta, ou seja, a Arquitetura Corporativa[1] do processo de negócio. / Business Process Management (BPM) [4] is a systematic and structured approach to analyze, improve, control and, manage processes with the goal of enhancing quality of products and services [2]. In the past decade, several studies indicate the importance of integrating business models and Information Technology (IT) Architecture, aiming an effective foundation for execution of business objectives [2]. This work proposal consists of a structured method to document Enterprise Architecture, based on UML Profiles for Business Process Modeling [3] and IT Infrastructure. The proposed method is validated using a case study in which all the interdependence of a Business Process and the necessary IT architecture to support it is detailed, i.e, the Enterprise Architecture [1] for that Business Process.

Made available in DSpace on 2016-04-29T14:23:45Z (GMT). No. of bitstreams: 1 Roger Pascoal.pdf: 870165 bytes, checksum: 48c0b0fb40025c970534b1bc2a95458f (MD5) Previous issue date: 2008-07-31 / The collaboration is present in sites that appeared in the last times and become widely used, such as Flickr and YouTube. And, if on the one hand it represents the same ideals intended by the inventors of the World Wide Web, on the other hand it is a reinvented process in accordance with the new available technological possibilities at the current moment. Thus, this research seeks to deepen the understanding about collaboration and how it had developed in the net. It intends to understand the features of collaborative production in cyberspace and to verify the existence of an emergent knowledge from it. The research is divided in five parts. In the first one, the Web development highlighting its collaboration features. In the second, the formation of cyberspace through telematics. In the third, the human cognition in accordance with perspective of the complexity theories and knowledge biology. In the fourth, cognitives technologies and the reflections about coletive cognition. In the fifth, in relation with the previous subjects, the observation of collaborative potential of web architectures and how they can contribute to the knowledge production / A colaboração está presente em sites que surgiram nos últimos tempos e tornaram-se amplamente utilizados, como Flickr e YouTube. E, se por um lado representa os mesmos ideais pretendidos pelos inventores da World Wide Web, por outro trata-se de um processo reinventado de acordo com as novas possibilidades tecnológicas disponíveis no momento atual. Assim, esta pesquisa segue em busca de aprofundar o entendimento sobre a colaboração e como ela evoluiu na rede. Dessa compreensão, pretende entender as características da produção colaborativa no ciberespaço e verificar a existência de um conhecimento emergente a partir dela. A pesquisa divide-se em cinco partes. Na primeira, o desenvolvimento da Web, destacando as suas características colaborativas. Na segunda, a formação do ciberespaço através das redes telemáticas. Na terceira, a cognição humana de acordo com perspectivas das teorias da complexidade e da biologia do conhecimento. Na quarta, as tecnologias cognitivas e as reflexões sobre a cognição em grupo. Na quinta, através da inter-relação entre os campos descritos anteriormente, a observação do potencial colaborativo das arquiteturas da Web e como elas podem contribuir para a produção de conhecimento

websites are one of the most popular and quickest way for communicating with users and providing information. Measuring the effectiveness of website, availability of information on website and information architecture on users

The intent of this report is to expose the audience to the contemporary organization of the Internet and to highlight the challenges it has to deal with in the future as well as the current efforts being made to overcome such threats. This report aims to build a frame of reference for how the Internet is currently structured and how the different layers interact together to make it possible for the Internet to exist as we know it. Additionally, the report explores the challenges the current Internet architecture design is facing, the reasons why these challenges are arising, and the multiple efforts taking place to keep the Internet working. In order to reach these objectives I visited multiple sites of organizations whose only reason for existence is to support the Internet and keep it functioning. The approach used to write this report was to research the topic by accessing multiple technical papers extracted from the IEEE database and network conferences reviews and to analyze and expose their findings. This report utilizes this vii information to elaborate on how network engineers are handling the challenges of keeping the Internet functional while supporting dynamic requirements. This report exposes the challenges the Internet is facing with scalability, the existence of debugging tools, security, mobility, reliability, and quality of service. It is explained in brief how each of these challenges are affecting the Internet and the strategies in place to vanquish them. The final objectives are to inform the reader of how the Internet is working with a set of ever changing and growing requirements, give an overview of the multiple institutions dedicated to reinforcing the Internet and provide a list of current challenges and the actions being taken to overcome them. / text

This item is not the definitive copy. Please use the following citation when referencing this material: Mostafa, J. and Dillon, A. (1996) Design and Evaluation of a User Interface Supporting Multiple Image Query Models. Proceedings of the 59th Annual Conference of the American Society for Information Science, Baltimore, MD, USA, October 21-26, 1996. I. Introduction: Digital image use occurs in many fields. For example, in the area of medicine, huge volumes of digital images are routinely generated for diagnostic purposes, sometimes reaching gigabyte range (Gitlin, 1992). Besser (1990) has designed highly innovative image- based selection systems to improve access to visual resources in architecture, anthropology and art collections. There are also signs that museums and archives have accepted the value of digital image technology in their environments (Besser, 1991; Wentz, 1989). Unfortunately, the technology for effective storage and retrieval of images has not kept pace with the technology of image production. The situation has reached such a critical stage that National Science Foundation (NSF) organized a special workshop on the topic of visual information management (Jain, 1993). The NSF workshop report stated, "It would be impossible to cope with this explosion of image information, unless the images were organized for retrieval. The fundamental problem is that images, video, and other similar data differ from numeric data and text data format, and hence they require a totally different technique of organization, indexing and query processing." This paper addresses the critical need for different techniques in improving retrieval of digital images. Our position is that the user interface is the principal component responsible for facilitating retrieval in databases. Therefore, to assure effective access design of interfaces need to be improved.

This item is not the definitive copy. Please use the following citation when referencing this material: Vaughan, M. and Dillon, A. (1998) The role of genre in shaping our understanding of digital documents. Proc. 61st Annual Meeting of the American Society for Information Science. Medford NJ: Information Today Inc., 559-566. Abstract: Interacting with documents in the digital domain is challenging many of our notions about discourse and its boundaries. Hyperlinked documents on the World Wide Web defy easy categorization and evaluation - making the role and value of digital documents difficult to assess. Most importantly, in such fluid and complex environments it is difficult to understand the nature of the interaction between users and information resources. This paper argues that notions such as navigation are limiting our understanding of these complex information spaces. Instead, what is needed is a broader framework of analysis that can embrace these concepts, and incorporate extended issues relating to shared understanding, relevance, and style. In the present paper we explore the utility of the intersection of genre theory and cognitive psychology in providing a meaningful framework for analysis and design purposes. In so doing we report the results of our latest research into the elements of genre that influence users of digital documents and provide examples of the usefulness of this analysis in web-based environments.

This item is not the definitive copy. Please use the following citation when referencing this material: Dillon, A. and Watson, C. (1996) User analysis HCI-the historical lessons from individual differences research. International Journal of Human-Computer Studies, 45(6), 619-638. Abstract: User analysis is a crucial aspect of user-centered systems design, yet Human-Computer Interaction (HCI) has yet to formulate reliable and valid characterizations of users beyond gross distinctions based on task and experience. Individual differences research from mainstream psychology has identified a stable set of characteristics that would appear to offer potential application in the HCI arena. Furthermore, in its evolution over the last 100 years, research on individual differences has faced many of the problems of theoretical status and applicability that are common to HCI. In the present paper the relationship between work in cognitive and differential psychology and current analyses of users in HCI is examined. It is concluded that HCI could gain significant predictive power if individual differences research was related to the analysis of users in contemporary systems design.

This item is not the definitive copy. Please use the following citation when referencing this material: Dillon, A., Richardson, J. and McKnight, C. (1991) Institutionalizing Human Factors in the design process: the ADONIS Experience. Contemporary Ergonomics '91, London: Taylor and Francis, 421-426. Abstract: The ADONIS workstation was an experimental document delivery system developed to facilitate retrieval and printing of CD-ROM stored articles. Although primarily aimed at the document supply industry, its potential application in libraries and research environments with end users was recognised. Hence, the present authors were asked to assess the system ergonomically from this perspective, and the outcomes of this assessment form the basis of this paper. It was clear that the design of the system ignored many formal ergonomic considerations. Subsequent user evaluations of the interface highlighted several potentially serious problems and cast doubt on the usability of the system in the end-user domain. A follow-up study of actual usage rates during field-testing of the product confirmed the findings of the initial evaluation and also indicated that some of the very first design decisions (e.g., regarding the choice of journal titles included), which proved detrimental to the system's acceptance, might have been very different if human factors considerations had been taken into account. The present paper describes the system and the problems highlighted by the human factors practitioners as well as discussing the pitfalls that could have been avoided by earlier involvement. The potential role of human factors in early design of such products is emphasised.

In an effort to understand the impact of designing for digital genres on usersâ mental representations of structure, a two-phase study was conducted. In phase 1, six expert news readers and a panel of HCI experts were solicited for input regarding genre-conforming and genre-violating web news page design, navigation, and story categorization. In phase 2, a longitudinal experiment with a group of 25 novice web news readers who were exposed to one of the two designs over 5 sessions is reported. During these sessions a variety of user data were captured, including: comprehension (recall, recognition), usability (time on task, accuracy, user satisfaction), and navigation (path length, category node hits). The between-group difference of web site design was signiï¬ cant for comprehension, usability, and navigation with the users of the genre-conforming design demonstrating better performance. The within-group difference of time was signiï¬ cant across these three measures as well, with performance improving over time. No interaction effect was found between web site design and time on comprehension or usability. However, a surprising interaction effect was found on navigation; speciï¬ cally the breadth of navigation (i.e. the number of nodes visited for two classes of tasks) increased over time more dramatically for the genre-violating group than for the genre-conforming group. By examining the changes in these data over time and between the two designs, evidence for the development of usersâ mental representations of structure was captured.

This item is not the definitive copy. Please use the following citation when referencing this material: Dillon, A. and Maynard, S. (1995) Don't forget to put the cat out! Why collaborative hypermedia and everyday writing pass one another by. The New Review of Hypermedia and Multimedia: Applications and Research, 1, 135-153. Abstract: Hypermedia technology is seen as offering potentially innovative support for the process of writing as much as information access and reading. However, authoring enviroments to date have had little impact in the realâ world production of text. One possible reason is our poor conceptualisation of current writing practice. In the present paper, 31 adult writers kept diaries of their writing activities over the course of one week. The results indicate that for most pople, real world writing is a short communicative act aimed at a limited audience and that technological support for such writing is less likely to resemble a hypermedia workstation than a portable personal communication device. Implications for work in the design of authoring tools are developed.