SOA - Principais motivações e beneficios da adopção da arquitectura SOA

Kriativ-tech
Volume 1, Issue 7, April 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

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<strong>Nuno Miguel Carvalho Galego</strong>, Professor Adjunto do ISTEC

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Nuno Miguel Carvalho Galego, SOA - Principais motivações e beneficios da adopção da arquitectura SOA

<strong>DOI:</strong>10.31112/kriativ-tech-2018-01-15

Abstract

These days many organizations are adopting SOA architectures (Service Oriented Architecture) to consume services form of Web Services. The purpose of the use of the SOA architecture is to allow the interconnection of applications that are implemented in different locations beyond the boundaries of the Organization in heterogeneous and distributed environments. This architecture can revolutionize the way that organizations compete, speeding up decision-making and take advantage of market opportunities. Based on the literature review, of this work discuss the main motivations and benefits of adoption of SOA architecture. This work describes the results of a survey which had as central study object-oriented software architecture (SOA), which identified the main motivations and benefits in adopting this architecture. Will also be addressed in this work, the types of services associated with the SOA as the reference model for SOA-OASIS. At the end of this work, a tool available from IBM organizations that streamlines the implementation of SOA-based projects such as the benefits in adopting an architecture of this type.

Keywords

Service Oriented Architecture (SOA); Web Services; OASIS reference model; IBM;

References

Barry, D. (2014). Service-Oriented Architecture (SOA) Definition. Obtido de http://www.service- architecture.com/articles/web-services/service- oriented_architecture_soa_definition.html

Bueno, J., Correa, P., Onoe, A., Borsoi, B., & Kiramoto, T. (19 de Junho de 2016). OASIS. Modelo de Referência para Arquitetura.

Christensen, E., Curbeta, F., Meredith, G., & Weerawarana. (Março de 2001). Web Services Description Language (WSDL) . Obtido de http://www.w3.org/TR/wsdl

Hohpe, G. (Maio de 2002). Stairway to Heaven, Software Development.

IBM. (Maio de 2004). IBM WebSphere Business Integration Server. Obtido de https://www- 01.ibm.com/common/ssi/rep_ca/4/897/ENUS204- 114/ENUS204-114.PDF

Jessani, V., Chilanti, M., & Iyengar, A. (2007). WebSphere Business Integration Primer: Process Server, BPEL, SCA, and SOA. IBM.

Keen, M., Cavell, J., Hill, S., Kee, C. K., Neave, W., Rumph, B., & Tran, H. (2004). BPEL4WS Business Processes with WebSphereBusiness Integration: Understanding, Modeling, Migrating. IBM.

Kress, J., Maier, B., Normann, H., Schmeidel, D., Schmutz, G., Trops, B., & Winterberg, T. (Julho de 2013). Enterprise Service Bus. Obtido de http://www.oracle.com/technetwork/articles/soa/ind- soa-esb-1967705.html

Kress, J., Maier, B., Normann, H., Schmeidel, D., Schmutz, G., Trops, B., & Winterberg, T. (Fevereiro de 2014). SOA and Business Processes: You are the Process! Obtido de http://www.oracle.com/technetwork/articles/soa/ind- soa-bpm-2133403.html

Lind, K., & Schwenkreis, F. (Janeiro de 2017). Understanding how WebSphere MQ Workflow and WebSphere Application Server Enterprise Process Choreographer can work together. Obtido de https://www.ibm.com/developerworks/websphere/libr ary/techarticles/wasid/WPC_Interop/WPC_Interop.ht ml

Linthicum , D. (Fevereiro de 2007). Rules Engines and SOA. Obtido de http://www.infoworld.com/article/2641011/service- oriented-architecture/rules-engines-and-soa.html

MacKenzie, M., Laskey, K., McCabe, F., Brown, P., & Metz, R. (Outubro de 2006). Reference Model for Service Oriented Architecture 1.0. Obtido de http://docs.oasis- open.org/soa-rm/v1.0/soa-rm.pdf

Mahmoud , H. (2005). Service-oriented architecture and web services: the road to enterprise application integration. Sun Microsystems Inc.

Moe, J. (2015). SOA and Service Catalogues. Obtido de http://www.soainstitute.org/resources/articles/soa- and-service-catalogues

OASIS. (2014). OASIS UDDI Specification. Obtido de https://www.oasis-open.org/committees/uddi- spec/faq.php

Oracle. (2015). Oracle Business Activity Monitoring. Obtido de http://www.oracle.com/technetwork/middleware/bam /overview/index.html

Pinho, S. (2008). Arquitectura de Segurança num ambiente SOA (Service Oriented Architecture). Porto.
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Integration Server Foundation Architecture and Overview. IBM.

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Thompson, H., Mendelsohn, N., Beech, D., & M., M. (Abril de 2012). W3C XML Schema Definition Language (XSD) 1.1 Part 1: Structures. Obtido de http://www.w3.org/TR/xmlschema11-1/

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W3C. (Junho de 2014). HTTP - Hypertext Transfer Protocol. Obtido de http://www.w3.org/Protocols/

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W3Schools. (2012). XML Web Services. Obtido de http://www.w3schools.com/xml/xml_services.asp

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Diferentes Aproximações em Linguagens de Programação

Kriativ-tech
Volume 1, Issue 7, April 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

José Câmara, Professor Adjunto do ISTEC

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José Câmara, Diferentes Aproximações em Linguagens de Programação

DOI: 10.31112/kriativ-tech-2018-01-16

Abstract

We will briefly review the different sub programming techniques and data access used in subprograms in different reference programming languages, since there are languages that implement only one approach, but there are others that require two approaches. With this article, we will try to clarify these aspects.

Keywords

Subprogram, Function, Subroutine, Procedure, Passing Parameters by Value, Passing Parameters by Reference.

References

[1] B. Kernighan, D. Ritchie, “The C Programming Language-Second Edition”, AT&T Bell Laboratories, USA, 1988.

[2] L. Damas, “Linguagem C”, Lisboa, FCA, 1999.

[3] H. Deitel, P. Deitel, “C: How to Program”, Prentice Hall, USA, 1994.

[4] N. Nina, “Visual Basic.NET”, Lisboa, FCA, 2003.

[5] H. Loureiro, “Visual Basic 2010”, Lisboa, FCA, 2010.

[6] A. Carriço, J. Carriço, “Programação em Visual Basic.NET”, Lisboa, ISTEC-Academia Software, 2002.

[7] L. Damas, “SQL”, Lisboa, FCA, 2005.

[8] F. Tavares, “MySQL”, Lisboa, FCA, 2015.

[9] C. Serrão, J. Marques, “Programação com PHP 5.3”, Lisboa, FCA, 2009.

[10] F. Tavares, “Desenvolvimento de Aplicações em PHP”, Lisboa, FCA, 2015.

[11] H. Deitel, P. Deitel, “Java: How to Program”, Prentice Hall, USA, 1999.

[12] F. Martins, “JAVA 6: Programação Orientada pelos Objectos”, Lisboa, FCA, 2009.

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Uma perspetiva aduaneira do comércio eletrónico

Kriativ-tech
Volume 1, Issue 7, April 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Fernando Campos Pereira, Professor Adjunto do ISTEC

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Fernando Campos Pereira, Uma perspetiva aduaneira do comércio eletrónico

DOI: 10.31112/kriativ-tech-2018-01-17

Abstract

The international trade paradigm has undergone a major change in the last 20 years, with an increasing impact on the global economy, and is therefore worthy of response by all actors involved in this process, including the authorities that have to intervene in these transactions, as such as the customs authorities, which must fulfill their mission without creating unnecessary obstacles to their realization.

Keywords

E-commerce, customs authorities, customs duties, customs declarations.

References

[1]ANA HINOJOSA, E-Commerce – What’s in a name, World Customs Organization.
[2]P N PANDEY, Measuring e-commerce – official and private sector data on cross border e-commerce, Geneva; Worls Customs Organization; 2016.[3]Eleventh WTO Ministerial Conference, Buenos Aires, 10 – 13 December 2017. Communication from the International Customs Community on Cross Border E- Commerce (Luxor, December 2017).
[4] SVEN CALLEBAUD, E-Commerce: Global trends and developments, UNCTAD. 2017.
[5] OECD Measuring the Digital Economy A new perspective, p.90-91. 2014.
[6] UNCTAD, B2c E-Commerce Index http://unctad.org/en/PublicationsLibrary/tn_unctad_ict4d09_en.pdf . 2017.
[7] E-commerce and revenue collection. World Customs Organization. 2015.

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História da Informática: o aparecimento do computador pessoal

Kriativ-tech
Volume 1, Issue 7, April 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Pedro Ramos Brandão, Professor Coordenador do ISTEC,  Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade - ISTEC

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Pedro Ramos Brandão, História da Informática: o aparecimento do computador pessoal

DOI: 10.31112/kriativ-tech-2018-01-14

Abstract

The appearance of the first personal computers, the differentiating peculiarities in relation to mainframes. The evolution of storage allowing the appearance of DOS and BIOS. The evolution of microprocessors simultaneously with the evolution of semiconductors.

Keywords

Personal Computer, Computer History, Computer History, Calculation, Microprocessor, Altair, BASIC, System / 360.

References

[1] – Bill Gosper, quoted in Steven Levy, Hackers of the Computer Revolution (New York: Anchor Doubleday, 1984): 67.

[2] – Bell et al., Computer Engineering, tabela na  p. 507

[3] – Edward Fredkin entrevista com o autor, 21 maio de 1993, referida por Paul Ceruzzzi in Modern Computing, 3003.

[4] – David Ahl, “Computer Games”, in Anthony Ralston and Edwin Reilly, eds, in Encyclopedia of Computer Science, third edition (New York: Van Nostrand, 1993): 285-287.

[5] – Max Palevsky, 10 julho 1974, U.S. v. IBM, Accession 1912, Box 31, transcript; Hagley Musem Archives.

[6] – Stephen Manes and Paul Andrews, Gates: How Microsoft’s Mogul Reinvented and Industry, and Made Himself the Richest Man in America (New York: Doubleday, 1993): 28-36.

[7] – Brand, “Spacewar: The Fanatic Life”; também Freiberger, Fire in the valey, 100-102.

[8] – Chuck House, “Hewlett-Packard and Personal Computing Systems”, in Adele Goldberg, ed., Hystory of Personal Worstation (Reading, MA: Addison Wesley, 1988): 413-414; Gordon Bell, entrevista com o autor, 16 de junho de 1992.

[9] – Peggy A., Landmarks in Digital Computing: a Smithsonian Pictorial History(Whashington; DC: Smithosian Press, 1994).

[10] – Chung Tung, “The Personal Computer: a Fully Programmable Pocket Calculator”, Hewlette-Packard Journal (1974).

[11] – Gordon E. Moore, “Progress in Digital Integrated Electronics”, Prooceedings International Electron Devices Meeting (Dezembro de 1975). Robert Noyce afirma que a primeira comunicação de Moore sobre este assunto foi em 1964: “Microeletronics”, Scientific American (Setembro de 1977). Moore previu que a taxa iria duplicar em cada dois anos (1980). Verificamos, hoje, que a taxa de densidade dos chips tem vindo a duplicar cada dezoito meses.

[12] – Clifford Barney, “He Started MOS From Scratch”, Electronics Week (Outubro, 1984).

[13] – William Barden, How to Buy and Use Minicomputers and Microcomputers(Indianopolis: Howard Sams, 1976).

[14] – Noyce e Hoff, “A History of Microprocessor Design”, American Heritage of Invention and Technology (Fall, 1994).

[15] – Edward Roberts, “Exclusive, Altair 8800: The most Powerful Minicomputer Project Ever Presented”, Popular Electronics(Janeiro, 1975).

[16] – Pugh et al, IBM’s 360 and Early 370 Systems (Cambridge: MIT Press, 1991).

[17] – Jim Warren, “First World on a Floppy-disc Operating System”, Dr. Dobb’s Journal(Abril, 1976).

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O potencial dos Social Media como ferramenta de comunicação dos museus

Kriativ-tech
Volume 1, Issue 1, March 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Joana Carvalho, ISTEC – Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade

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Joana Carvalho, O potencial dos Social Media como ferramenta de comunicação dos museus

Abstract

Social mediaallow individuals tointeractcollaboratively, changing the waythey relateand, asthisarticle argues, the museum institutionsare not indifferentto this change in thecommunication paradigm. The transformationsof modern society, closely linkedto information and communication technology, have raisedissuesfor museums, making them facethesenew challengesof transforming theirsocial role, enhancing theireminentlythrough digitalcommunication.Social media allow an evolving role of the museum, from an information provider to an enabler of knowledge, giving visitors the opportunity to explore, in an active way, creating the basis for the design of new perspectives about the museum. Social mediacan helpthe museum tofulfill itssocial role, bringing it closer tothe public, more diverseand heterogeneous, making the digital asanessential formof communicationmuseum.

Keywords

Communication, Participatory Culture, Museums, Social Media, Web 2.0

References

Abad, M. (2010). La Comunicación corporativa de los museos en Espanã a través de la comunicacion 3.0: cuatro años de la evolución comunicativa em la Red. In II Congreso Internacional Comunicación 3.0, edited by U. d. Salamanca. Salamanca.

Anderson, P. (2007). What is Web 2.0? Ideas, techologies and implications for education. JISC Technology and Standards Watch, http://www.jisc.org.uk/media/documents/techwatch/tsw0701b.pdf.

Berlo, D. (2003). O Processo da Comunicação. Brasilia: Martins Fontes.

Berners-Lee, T. (1995). Hypertext and our collective destiny. http://www.w3.org/Talks/9510_Bush/Talk.html.

Bernstein, S. (2008). Where do we go from here? Continuing with Web 2.0 at the Brooklyn Museum. In Museums ant the web 2008. Québec: Archives & Museum Informatics.

Bowen, J. (2008). Wiki software and facilities for museums. In Museums and the Web 2008. Québec: Archives & Museum Informatics.

Bower, J., Lisney, E., & Filippini-Fantoni, S. (2007). A Museums Wiki. In Museums and the Web 2007. California: Archives & Museum Informatics.

Carvalho, A. (2008). Os blogues como instrumentos de trabalho para a museologia.  (1), www.icom-portugal.org/multimedia/info%20II-1_jun-ago08(2).pdf.

Castells, M. (2002). A Era da Informação: economia, sociedade e cultura. Lisboa: Fundação Calouste Gulbenkian.

Deloche, B. (2001). Le musée virtuel: vers un éthique des nouvelles images. Paris: Presses Universitaires de France.

Garcia, N. (2003). O museu entre a cultura e o mercado: um equilíbrio instável. Coimbra: Instituto Politécnico de Coimbra.

Giaccardi, E. (2006). Collective Storytelling and Social Creativity in the Virtual Museum: A case study. Design Issues 22.

Hooper-Greenhill, E. (1998). Los museos y sus visitantes Asturias: Ediciones Trea.

Jenkins, H. (2001). Converge? I diverge. Techology review.

Jenkins, H. (2006). Convergence Culture: Where Old media and New media collide. New York: New York University Press.

Kaplan, A., & Haenlein, M. (2010). Users of the world, unite! The challenges and opportunities of social media. Kelley School of Business 53 (1):59-68.

Kelly, L., Cook C., & Gordon, P. (2006). Building Relationships through Communities of Practice: Museums and Indigenous People. Curator: The Museum Journal 49 (2):217-234.

Lagrosen, S. (2003). Online service marketing and delivery: the case of Swedish museums. Information Technology & People 16:132-156.

Lévy, P. (1997). A Inteligência Colectiva. Lisboa: Instituto Piaget.

Lévy, P. (2000). Cibercultura. Lisboa: Instituto Piaget.

Lira, Sérgio. 2005. Museus e Consumo. http://www2.ufp.pt/~slira/artigos/museus_consumo_tae.pdf.

Loureiro, M. (2007). Os arquivos globais de video na Internet entre o efémero e as novas perenidades. O caso do Youtube. Comunicação e Sociedade, http://revcom.portcom.intercom.org.br/index.php/cs_um/article/view/4797.

McLuhan, M. (1977). A Galáxia de Gutenberg. S. Paulo: Nacional.

Merriam, B. (1988).Case study research in education - A qualitative approach. San Francisco: Jossey-Bass Inc Pub.

Moutinho, Mário. 1989. Museus e Sociedade: Reflexões sobre a função social do Museu. Cadernos de Património.

O'Reilly, T. (2005). What Is Web 2.0?  , http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html/.

O'Reilly, T. & Batelle, J. (2009). Web Squared: Web 2.0 Five Years On. http://gossgrove.com/sites/default/files/web2009_websquared-whitepaper.pdf.

O'Sullivan, T. (2007). Sounding Boards: Performing Arts Organizations and the Internet Forum. International Journal of Arts Management.

Primo, J. (2006). A importância dos Museus Locais em Portugal. Cadernos de Sociomuseologia.

Rothfarb, R. & Doherty, P. (2007). Creating museum content and community in Second Life. In Museums and the Web 2007. California: Archives & Museum Informatics.

Russo, A., Watkins, J., Kelly, L. & Chan, S. (2006). How will social media affect museum communication? In Nordic Digital Excellence in Museums. Oslo.

Saussure, F. (2002). Ecrits de Linguistique Générale. Paris: Gallimard.

Smith, S. (2008). User expectations. http://www.archimuse.com/mw2008/papers/smith/smith.html.

Trant, J. (2006). Exploring the potential for social tagging and folksonomy in art museums: proof of concept. New Review of Hypermedia and Multimedia, http://www.archimuse.com/papers/steve-nrhm-0605preprint.pdf.

Wal, V. (2005). Folksonomy Definition and Wikipedia. http://www.vanderwal.net/random/entrysel.php?blog=1750.

Witcomb, A. (2007). The materiality of virtual technologies : a new approach to thinking about the impact of multimedia in museums In Theorizing digital cultural heritage : a critical discourse Cambridge: MIT Press.

 

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“Perspectiva geral das redes IMS (IP Multimedia Subsytem)”

Kriativ-tech
Volume 1, Issue 1, March 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Sérgio Pinto,Dep. de Estudos e Investigação em Tecnologias de Informação e Sociedade – ISTEC, Professor Adjunto do ISTEC

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Sergio Pinto, “Perspectiva geral das redes IMS (IP Multimedia Subsytem)”

DOI: 10.31112/kriativ-tech-2018-01-05

Abstract

The IMS networks (IP Multimedia Subsystem) allow the telecommunications networks users to access several IP multimedia services from different terminals and IP access networks. Additionally, they intend to allow the operators to have a easier way for new services development, management and networks interoperability.

This paper purpose is to have a brief description of the IMS networks main features, that justify its selection as the NGN (Next Generation Network) networks control standard.

Keywords

IMS, IP, CSCF, AS, NGN, SIP, services, control e connectivity.

References

[1] Poikselka M., Mayer G., Khartabil H. & Niemi A. “The IMS IP Multimedia Concepts and Services”, 3th Edition, John Wiley & Sons, 2009.

[2] 3GPP “TS 23.228 Digital cellular telecommunications system (Phase 2+)”; Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS).

[3] ETSI/TISPAN “TS 182 006 IP Multimedia Subsystem (IMS)”; Stage 2 description.

[4] ETSI “ES 282 007 IP Multimedia Subsystem (IMS)”; Functional architecture NGN IMS Architecture.

[5] GSMA “VoLTE Service Description and Implementation Guidelines”, Version 2.0, October 2014.

[6] Ericsson, “Introduction to IMS, White Paper”, 2007.

[7] Ulticom, “IMS Signaling Architecture, White Paper”, 2005.

[8] F5, “Introduction to the IP Multimedia Subsystem (IMS)”, 2016.

[9] Gilles Bertrand, “The IP Multimedia Subsystem in Next Generation Networks”, 2007.

[10]     Ericsson “MMTel – a standard for multimedia services over IMS, White Paper”, 2008.

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Fatores críticos de sucesso na gestão de projetos de sistemas de informação

Kriativ-tech
Volume 1, Issue 1, March 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Álvaro Magalhães, ISTEC – Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade, Professor Adjunto do ISTEC

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Álvaro Magalhães, Fatores críticos de sucesso na gestão de projetos de sistemas de informação

DOI: 10.31112/kriativ-tech-2018-01-04

Abstract

The purpose of this article was to conduct a survey and analyze the factors that determine and determine the performance of software projects in our industry (including development, installation, migration among other types of projects).
This article is made up of a survey made to the Portuguese market, since the same benchmarking questionnaire was produced and analyzed in the American market.
This was translated and applied to our market, this questionnaire was prepared by the American consultant, PA Consulting and was sent to about 50 companies, of which 23 responses were obtained. This questionnaire allowed to obtain a knowledge of several factors, from the companies that responded, such as the branch of activity, the percentage of sales in several segments, whether they are project managers with a lot of or little experience, which type of projects generate , the duration and the planned budget, for the projects that manage, whether or not they make corrections, and also among others allowed to obtain a knowledge of the impact in the design phase and in the construction phase of several factors. The data were processed and statistical results, presented in the form of a graph, were obtained from the answers that the project managers provided in the questionnaire. The goal was also for this questionnaire to be sent to the top100 companies in our market and this is what happened.

Keywords

Project Management, Project.

References

  1. Rodrigues, Alexandre G., The Application of System Dinamics to Project Management: An Integrated Methodology (SYDPIM), Tese de Doutoramento, London, England July 2000.
  2. Russell, Lou, Learning and E-Projects, Cutter Consortium, May 2000.
  3. Sievert, Richard W., Total Productive Facilities Managment: A Comprehensive Program to Achieve Business Goals by Optimizing Facility Resources, Implement Best Practices Through Benchmarking, Evaluation, Hardcover, October
  4. Silva, Alberto; Videira, Carlos, UML Metodologias e Ferramentas Case, Centro Atlântico, 2001.
  5. Thomsett, Rob, Extreme Project Management, Cutter Consortium, 2001.
  6. Toney, Frank; Powers, Ray, Best Practices of Project Management Groups In Large Functional Organizat, Project Management Institute, December
  7. Whitten, Neal, EnterPrize Organization, The: Organizing Software Projects for Accountability and Success, Project Management Institute, 1999.
  8. Pickering, Chris, Building an Effective E-Project Team, Cutter Consortium, July 2001.
  9. Pinto, Jeffery K.; Trailer; Jeffrey W., Essentials of Project Control, Project Management Institute, 1999.
  10. Highsmith, Jim; Yourdon, Ed, Business Technology Trends and Impacts, Cutter Consortium, December 2000.

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Visualização de Informação para a Descoberta de Padrões Pessoais

Kriativ-tech
Volume 1, Issue 1, March 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Sandra Pereira Gama, ISTEC – Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade, Professora Adjunta do ISTEC

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Sandra Gama, Visualização de Informação para a Descoberta de Padrões Pessoais

DOI: 10.31112/kriativ-tech-2018-01-07

Abstract

Nowadays, people have access to a variety of devices and applications to mediate their social interactions in any time and place. As a result, large amounts of information are generated which are not only heterogeneous but also dispersed, making it difficult to manage and analyze. Information Visualization presents a high potential to decrease cognitive load associated with data interpretation and to agglomerate information in a homogeneous way. Hence, it may potentially provide a comprehensive overview of such information, allowing users to understand their own patterns of social interaction in this personally relevant social context. This article introduces Trend Visualization (TreVi), which uses a variety of Information Visualization techniques to provide users with a unified view of their socially-generated personal information. It allows users to progressively explore the data in coherent and easily understandable items, allowing to maintain the context, while revealing personally relevant patterns.

Keywords

Information Visualization, Social Personal Information, User Interaction.

References

[1] Dix, A. Finlay, J, Abowd, G, Beale, R. (1998). Human-Computer Interaction (2nd Edition). Prentice Hall.

[2] Andrews, K., Evaluating Information Visualizations. Proceedings of the 2006 AVI workshop on BEyond time and errors: novel evaluation methods for information visualization. ACM.

[3] Chen, C. (2006). Information Visualization: Beyond the Horizon. Springer.

[4] Shneiderman, B., Plaisant, C. (2006) Strategies for evaluating information visualization tools: multi-dimensional in-depth long-term case studies. Proceedings of the 2006 AVI workshop on BEyond time and errors: novel evaluation methods for information visualization. ACM.

[5] Spence, R. (2007). Information Visualization - Design for Interaction (2nd Edition). Pearson Education Limited.

[6] Mazza., R. (2009). Introduction to Information Visualization. Morgan Kaufmann

 

[7] Preece, J., Rogers, Y., Sharp, H. (2011). Interaction Design: Beyond Human-Computer Interaction (3rd Edition). John Wiley & Sons.

[8] Fonseca, M.J., Campos, P., Gonçalves, D. (2012). Introdução ao Design de Interfaces. FCA.

[9] Ware, C. (2012). Information Visualization: Perception for Design. Elsevier.

[10] Gama, S., Gonçalves, D. (2014). Studying the Perception of Color Components' Relative Amount in Blended Colors.  In Proceedings NordiCHI 2014, the 8th Nordic Conference on Human-Computer Interaction. Helsinki, Finland. ACM Press.

[11] Gama, S., Gonçalves, D. (2014). Studying Color Blending for Data Visualization.  In Proceedings EuroVis 2014. pp 121-125. Swansea, Wales, UK. Eurographics.

[12] Gama, S., Gonçalves, D. (2014). Guidelines for Using Color Blending in Data Visualization. In AVI '14: International Working Conference on Advanced Visual Interfaces. pp 363-364. Como, Italy. ACM Press.

[13] Gama, S., Gonçalves, D. (2014). Studying Color Blending for Visualizing Social Artifacts. In Proceedings EPCG2014 - 21 Encontro Português de Computação Gráfica. Leiria, Portugal.

[14] Munzner, T. (2014). Visualization Design and Analysis: Abstractions, Principles, and Methods. AK Peters

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Virtualização: fundamentos

Kriativ-tech
Volume 1, Issue 1, March 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

Pedro Ramos Brandão, Professor Coordenador do ISTEC, Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade - ISTEC, Investigador da Universidade de Évora – CIDEHUS

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Pedro Ramos Brandão, Virtualização: fundamentos

DOI: 10.31112/kriativ-tech-2018-01-01

Abstract

We will briefly review the historical context of the concept of virtualization. We'll try to explain the key facts that drive solution providers to virtualization, enumerate the various types of virtualization, define their components, and discuss security issues that are directly related to virtualization.

Keywords

Cloud Computing, Security, ISO 27001, ISO 27002, Security Policies.

References

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Processos de Otimização Gráfica para Recursos 3D no Contexto de Realidade Virtual

Kriativ-tech
Volume 1, Issue 1, March 2018, Pages: xxx
Received: Nov. 28, 2017;

Accepted: Dec. 8, 2017;

Published: Feb. 24, 2018

Authors

André da Cruz Rodrigues, ISTEC – Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade

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André da Cruz Rodrigues, Processos de Otimização Gráfica para Recursos 3D no Contexto de Realidade Virtual

DOI: 10.31112/kriativ-tech-2018-01-03

Abstract

The purpose of the current article is to analyze the peculiarity of 3D asset visualization in virtual reality devices, as well as research the more adequate techniques in 3D production for this type of medium. Having into account that the demand of content for these systems could grow significantly in a near future, development pipelines more optimized for virtual reality could become gradually more relevant, particularly in the relation between graphic quality and performance. As regularly these contents are integrated in real-time engines, it might be important to establish a comparative approach about the production processes within the videogame industry. In the end of this study, we will try to set those comparative elements, present some conclusions about suitable workflows and help to define good practices through the development process.

Keywords

Virtual Reality; 3D Modeling; Digital Sculpting; Texturing; Materials; Graphic Engines.

References

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[3] Lamkin, P (2017). Wareable – The best smartphone headsets for VR apps. Retirado de https://www.wareable.com/vr/best-smartphone-headsets-mobile-vr-apps-1655

[4] Durães, L. (2015). O Cinema de Animação 3D em Sistemas de Realidade Virtual: Exploração dos Modos de Visualização e do Foco da Narrativa, 45-54. Universidade do Porto.

[5] Afonso, L. (2016). Interação em Realidade Virtual usando dispositivos móveis, 3-16. Universidade de Aveiro.

[6] Castro, D. (2015). Estudo Focado no Utilizador de Software Gratuito para Modelação e Visualização 3D Realista, 13-15 e 64-65. Instituto Superior de Engenharia do Porto.

[7] Santos, S. (2016). Impressão 3D – Perspetivas de Adoção na Indústria Portuguesa, 19-29. Universidade Nova de Lisboa.

[8] Vasconcelos J. B. & Ribeiro, N. (2013). Tecnologias de Programação de Jogos, 60-72. FCA – Editora de Informática, LDA.

[9] McDermott, W. (2015a). The Comprehensive PBR Guide by Allegorithmic Vol. 1 – The theory of Physically-Based Rendering and Shading. Retirado de https://www.allegorithmic.com/system/files/software/download/build/PBR_Guide_Vol.1.pdf

[10] Tan, J. (2017). Sculpt a Total War game character with Zbrush – 3D Artist Magazine, nº 109, 48-53. Future Publishing Ltd.

[11] McDermott, W. (2015b). The Comprehensive PBR Guide by Allegorithmic Vol. 2 – Light and Matter: Pratical guidelines for creating PBR texturing. Retirado de https://www.allegorithmic.com/system/files/software/download/build/PBR_volume_02_rev05.pdf

[12] Usher, W. (2016). Cinema Blend - VR Games at E3 Were Making People Sick. Retirado de https://www.cinemablend.com/games/1525170/vr-games-at-e3-were-making-people-sick-get-the-details

[13]Hayes, P. (2017). Em entrevista à 3D World Magazine - VR Game Modeling, nº 219, 18-19. Future Publishing.

[14] Hales, M (2016). Medium – Keep it Canny - Asset Preparation for Virtual Reality. Retirado de https://medium.com/@Hales/keeping-it-canny-asset-preparation-for-virtual-reality-659d46001976

[15] Kinney, J. (2016). The Game Artists Guide to VR – 3D World Magazine, nº 203, 41-49. Future Publishing.

[16] Hales, M (2016). Medium – Keep it Canny - Asset Preparation for Virtual Reality. Retirado de https://medium.com/@Hales/keeping-it-canny-asset-preparation-for-virtual-reality-659d46001976

[17] Homer, S. (2017). Em entrevista à 3D World Magazine - VR Game Modeling, nº 219, 22-23. Future Publishing.

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