Computing and Information Systems - Research Publications
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ItemBusiness Process Model Abstraction(Springer-Verlag, 2010-01-01)In order to execute, study, or improve operating procedures companies document them as business process models. Often business process analysts capture every single exception handling or alternative task handling scenario within a model. Such a tendency results in large process specifications. The core process logic becomes hidden in numerous modeling constructs. To fulfill different tasks companies develop several model variants of the same business process at different abstraction levels. Afterwards, maintenance of such model groups involves a lot of synchronization effort and is erroneous. We propose an abstraction technique that allows generalization of process models. Business process model abstraction assumes a detailed model of a process to be available and derives coarse grained models from it. The task of abstraction is to tell significant model elements from insignificant ones and to reduce the latter. We propose to learn insignificant process elements from supplementary model information, e.g., task execution time or frequency of task occurrence. Finally, we discuss a mechanism for user control of the model abstraction level - an abstraction slider.
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ItemThe Structured Phase of Concurrency(Springer Berlin Heidelberg, 2013)This extended abstract summarizes the state-of-the-art solution to the structuring problem for models that describe existing real world or envisioned processes. Special attention is devoted to models that allow for the true concurrency semantics. Given a model of a process, the structuring problem deals with answering the question of whether there exists another model that describes the process and is solely composed of structured patterns, such as sequence, selection, option for simultaneous execution, and iteration. Methods and techniques for structuring developed by academia as well as products and standards proposed by industry are discussed. Expectations and recommendations on the future advancements of the structuring problem are suggested.
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ItemFlexible Service Systems(SPRINGER, 2011-01-01)Service science combines scientific, management, and engineering disciplines to improve the understanding of how service systems cooperate to create business value. Service systems are complex configurations of people, technologies, and resources that coexist in a common environment of service provisioning. While the general concepts of service science are understood and agreed upon, the representation of service systems using models is still in its infancy. In this chapter, we look at business processes and their role in properly representing service systems. We propose flexible process graphs, a high-level process modeling language, and extend it in order to specify service systems and their compositions within shared environments in a flexible way. The discussion in this chapter is the first step towards a formal description of service science environment, including service systems, networks, and whole ecology.
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ItemFacebook and the Other: Administering to and Caring for the Dead Online(Melbourne University Press, 2012)
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ItemA PROPOSED SURVEY OF EAST MEDITERRANEAN MUREX HEAPS FROM THE BRONZE AGE TO ROMAN TIMES: A GIS ANALYSIS OF POSSIBLE TRADE NETWORKS(UNIVERSITATDE VALÈNCIACENTRE JEAN BÉRARD (CNRS-EFR) NAPLES, 2011)
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ItemNo Preview AvailableExploring the Impact of Relationship and Value Perceptions on the Adoption of Mobile Broadband Services(Routledge, 2013)The emergence of mobile telephony devices with increasing Internet capabilities, particularly with the availability of the broadband Internet, has helped mobile broadband services to become one of the fastest growing industries. Using mobile broadband, consumers can send or receive emails, download music, shop for goods and services, play interactive online games, trade stocks, purchase tickets, fi nd friends and conduct fi nancial, banking and commerce transactions in addition to many other services (Ohmori et al. 2000). Mobile broadband services vary from basic services (such as short messaging services [SMS] and multimedia messaging services [MMS]) to more advanced services such as mobile banking, mobile stock trading and mobile selling and buying.
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ItemCybraries in paradise: New technologies and ethnographic repositories(Routledge, 2013-01-01)Digital technologies have altered research practices surrounding creation and use of ethnographic field recordings, and the methodologies and paradigms of the disciplines centered around their interpretation. In this chapter we discuss some examples of our current research practices as fieldworkers documenting music and language in the Asia-Pacific region in active engagement with the cultural heritage communities, and as developers and curators of the digital repository PARADISEC (the Pacific and Regional Archive for Digital Sources in Endangered Cultures: ). We suggest a number of benefits that the use of digital technologies can bring to the recording of material from small and endangered cultures, and to its re-use by communities and researchers.
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ItemDevelopment of an Endocrine Genomics Virtual Research Environment for Australia: Building on Success(SPRINGER-VERLAG BERLIN, 2013)The $47m Australian National eResearch Collaboration Tools and Resources (NeCTAR - www.nectar.org.au) project has recently funded an initiative to establish an Australia-wide endocrine genomics virtual laboratory (endoVL – www.endovl.org.au) covering a range of disorders including type-1, type-2 diabetes, rare diabetes-related disorders, obesity/thyroid disorders, neuroendocrine/adrenal tumours, bone disorders and disorders of sex development. This virtual laboratory will establish a range of targeted databases, clinical registries and support a range of genetically targeted clinical trials leveraging a body of international projects and experiences garnered over many years through a range of EU and MRC funded initiatives. This paper focuses on the plans for endoVL and especially, the systems it leverages in supporting large-scale clinical, collaborative environments.
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ItemAchieving flexible SLA and resource management in clouds(IGI Global, 2012-12-01)One of the key factors driving Cloud computing is flexible and on-demand resource provisioning in a pay-as-you-go manner. This resource provisioning is based on Service Level Agreements (SLAs) negotiated and signed between customers and providers. Efficient management of SLAs and Cloud resources to reduce cost, achieve high utilization, and generate profit is challenging due to the large-scale nature of Cloud environments and complex resource provisioning processes. In order to advance the adoption of this technology, it is necessary to identify and address the issues preventing proper resource and SLA management. The authors purport that monitoring is the first step towards successful management strategies. Thus, this chapter identifies the SLA management and monitoring challenges in Clouds and federated Cloud environments, and proposes a novel resource monitoring architecture as a basis for resource management in Clouds. It presents the design and implementation of this architecture and presents the evaluation of the architecture using heterogeneous application workloads.
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ItemTowards an organizational culture framework for information security practices(IGI Global, 2012-12-01)In organizations, employee behaviour has a considerable impact on information security. The organizational culture (OC) that shapes acceptable employee behaviours is therefore significant. A large body of literature exists that calls for the cultivation of security culture to positively influence information security related behaviour of employees. However, there is little research examining OC that enables the implementation of information security. The authors address the unsubstantiated claim that there is an important relationship between OC and the ability to successfully implement information security. Findings suggest that security practices can be successfully implemented within eight organizational culture characteristics. Investigation of these organizational culture characteristics from a security perspective is an important step toward future empirical research aimed at understanding the relationship between OC and the implementation of systematic improvement of security practices. The research and practical implications of these findings are discussed, and future research areas are explored.