Analysis of current middleware used in peer-to-peer and grid implementations for enhancement by catallactic mechanisms

This deliverable describes the work done in task 3.1, Middleware analysis: Analysis of current middleware used in peer-to-peer and grid implementations for enhancement by catallactic mechanisms from work package 3, Middleware Implementation. The document is divided in four parts: The introduction with application scenarios and middleware requirements, Catnets middleware architecture, evaluation of existing middleware toolkits, and conclusions. -- Die Arbeit definiert Anforderungen an Grid und Peer-to-Peer Middleware Architekturen und analysiert diese auf ihre Eignung für die prototypische Umsetzung der Katallaxie. Eine Middleware-Architektur für die Umsetzung der Katallaxie in Application Layer Netzwerken wird vorgestellt.Grid Computing

Proof-of-Concept Application - Annual Report Year 1

In this document the Cat-COVITE Application for use in the CATNETS Project is introduced and motivated. Furthermore an introduction to the catallactic middleware and Web Services Agreement (WS-Agreement) concepts is given as a basis for the future work. Requirements for the application of Cat-COVITE with in catallactic systems are analysed. Finally the integration of the Cat-COVITE application and the catallactic middleware is described. --Grid Computing

Blockchain and certificate authority cryptography for an asynchronous on-line public notary system

The true innovation behind the Bitcoin protocol is blockchain technology. Blockchain is the underlying distributed database and encryption technology that enables trustless transactions that can be verified, monitored, and enforced without a central institution. This master’s report presents the core concepts behind blockchain that are concerned with carrying instructions for storage, sharing of non-financial data, including an examination of the byzantine fault tolerant cryptography model. A literature review describes the types of blockchains, nodes, proof of work, disadvantages, and risks and provides a survey of future applications related to state government records, such as birth certificates, automobile registrations, land deeds, and voting. This review will answer the question: Is it possible for a state government to use blockchain employing trusted nodes given that the nature of blockchain is that of a distributed network of peers accompanied by a public ledger without a central authority? Finally, the requirements for a specific application case study will be defined and developed. The desired application will be a smart contract to invoke a statutory durable power of attorney using blockchain technology for oneself in case of incapacitation while still living.Electrical and Computer Engineerin

The design of a protocol for collaboration in a distributed repository - Nomad

Computer Supported Cooperative Work (CSCW) is the study of how people use technology, with relation to hardware and software, to work together in shared time and space. Mobile office environments are becoming commonplace. Workers form virtual online communities on a global scale and use groupware to collaborate and complete a common goal. We tend to be mobile, yet need to be available to collaborate. This thesis investigates a protocol for our decentralized artifact control system, Nomad. Nomad enables globally dispersed members of small casually connected communities to share artifacts which are gathered on a best effort approach. The Nomad protocol takes into consideration the work habits of users and their variety of devices. The major contribution of this thesis is a simulator of the Nomad protocol, which serves as a proof-of-concept for its design. Specifically, we look at how such a protocol handles casually connected small communities. We consider high level aspects such as setting up the community, the overhead of nodes, availability, scalability and connectivity. We demonstrate scenarios that the protocol will need to handle. Furthermore, we take a broad look at CSCW, push and pull technologies, peer-to-peer technologies, and enabling technologies such as Microsoft .Net. These form the basis of the Nomad design. In addition, we suggest the integration of mobile agents, which we consider a future addition to Nomad. It was found that the protocol had to compensate for two nodes that were never online at the same time. In the case that a best effort approach is not feasible, we propose alternate approaches at the cost of overhead on a propagation node. The developed concept provided valuable insight into the problem domain, outlined the boundaries of the protocol and provided a possible solution for Nomad. The simulator proved to be a useful tool for determining outcomes from possible scenarios. The results from the simulator will feed directly into the development of Nomad.Dissertation (MSc (Computer Science))--University of Pretoria, 2007.Computer Scienceunrestricte

The impact of blockchain technology on information technology governance

Abstract : This dissertation forms a hypothesis that Blockchain technology is giving rise to a new form of enterprise IT governance. Blockchain is a computational design that first emerged as the technology underpinning the popular cryptocurrency Bitcoin. Despite its use in cryptocurrency, it has an array of different use cases that may significantly impact the global economy. Some areas that Blockchain will affect were never truly re-engineered by the internet era, namely Economics and Governance. This dissertation is a qualitative exploration and analysis of blockchain’s impact on Information Technology Governance. The research unpacks these implications by comparing governance in hierarchical organisations and decentralised autonomous organisations. The primary data is attained through a questionnaire and the secondary data from a case study. The research contains two literature reviews on Blockchain and IT governance. The primary finding of this research reveals that although conventional IT Governance will still be used in the future, fifty percent of the sentiments shared by subject matter experts indicate that unconventional governance will take precedence with decentralised autonomous organisations. This implies that changes in traditional governance frameworks may be required in the future.M.Com. (Information Technology Management

FinBook: literary content as digital commodity

This short essay explains the significance of the FinBook intervention, and invites the reader to participate. We have associated each chapter within this book with a financial robot (FinBot), and created a market whereby book content will be traded with financial securities. As human labour increasingly consists of unstable and uncertain work practices and as algorithms replace people on the virtual trading floors of the worlds markets, we see members of society taking advantage of FinBots to invest and make extra funds. Bots of all kinds are making financial decisions for us, searching online on our behalf to help us invest, to consume products and services. Our contribution to this compilation is to turn the collection of chapters in this book into a dynamic investment portfolio, and thereby play out what might happen to the process of buying and consuming literature in the not-so-distant future. By attaching identities (through QR codes) to each chapter, we create a market in which the chapter can ‘perform’. Our FinBots will trade based on features extracted from the authors’ words in this book: the political, ethical and cultural values embedded in the work, and the extent to which the FinBots share authors’ concerns; and the performance of chapters amongst those human and non-human actors that make up the market, and readership. In short, the FinBook model turns our work and the work of our co-authors into an investment portfolio, mediated by the market and the attention of readers. By creating a digital economy specifically around the content of online texts, our chapter and the FinBook platform aims to challenge the reader to consider how their personal values align them with individual articles, and how these become contested as they perform different value judgements about the financial performance of each chapter and the book as a whole. At the same time, by introducing ‘autonomous’ trading bots, we also explore the different ‘network’ affordances that differ between paper based books that’s scarcity is developed through analogue form, and digital forms of books whose uniqueness is reached through encryption. We thereby speak to wider questions about the conditions of an aggressive market in which algorithms subject cultural and intellectual items – books – to economic parameters, and the increasing ubiquity of data bots as actors in our social, political, economic and cultural lives. We understand that our marketization of literature may be an uncomfortable juxtaposition against the conventionally-imagined way a book is created, enjoyed and shared: it is intended to be

A Design Framework for Researching Collaborative Learning Environments

Despite the increasing use of communication and social media technologies in higher education teaching environments, and an extensive literature describing the potential of using technology in teaching, there is limited empirical literature demonstrating that technology enhances learning. The widespread adoption of some Web 2.0 and other mature technologies in education creates an opportunity to extend current research by identifying relationships between these technologies and pedagogically informed interactions within a Community of Inquiry. In this research, we propose a conceptual framework linking educational pedagogy, technological support of learning interactions, and emergent teaching, social and cognitive presences, which are linked with learning outcomes. This framework grounds discussion of the future design and evaluation of a prototype Collaborative Learning Environment based on the proposed interactions. Additional future research based on this framework is discussed

Disruptive Power of Blockchain on the Insurance Industry

Kindlustus on olnud globaalse majanduse võtmekomponendiks oma lisatasude suuruse, investeerimismahtude ja ennekõike oma isikliku ja äririski katva sotsiaalse ja majandusliku rolli tõttu. Aastate jooksul on antud sektoris olnud püsiv reform, kuid sellele vaatamata on kindlustuse tööstusharu jäänud suuremalt jaolt samaks oma ärimudeli ja toimimise osas. Seda sektorit domineerivad vahendajad, kes mängivad võtmerolli kliendi vajaduste mõistmises ja viivad selle kokku kindlale sihtgrupile mõeldud kindlustustootega. PwC poolt tehtud uuring raportis „Kindlustus 2020: Muutuse pööramine võimaluseks“ [1] võtab arvesse sotsiaalsed, tehnoloogilised, keskkondlikud, majanduslikud ja poliitilised faktorid ning viitab sellele, et kindlustuse sektoril on vajadus muutuda agentuuripõhisest jaotusmudelist kasutusepõhiseks ärimudeliks. Antud uurimustöö uurib plokiahela tehnoloogiat ja selle häirivat mõju kindlustussektorile hinnates praegust äriprotsessi ja –mudelit ning seda, kuidas see tehnoloogia suudab antud mudeleid täiustada. Uurimustöö järeldusena pakutakse uut protsessi suunda kindlustuse tööstusharule rõhutades kliendile pakutavat parema väärtusega teenust, kus on kasutusel plokiahela tehnoloogia. Võtmesõnad: plokiahela tehnoloogia, kindlustuse äriprotsess, jaotatud peaarvetehnoloogiaThe insurance industry has been a key component of the global economy by the amount of premiums it generates, the scale of its investment and more fundamentally, the essential social and economic role it plays in covering personal and business risk. Over the years, there have been a growing reform in this sector but despite some of these reforms, the insurance industry has remained much the same in its business model and operations. The sector has been dominated by intermediaries who play the key role of understanding and matching the need of the customer with specific tailored insurance product. A research conducted by PwC in a report titled “Insurance 2020: Turning change into opportunity” [1], takes into account STEEP (Social, Technology, Environmental, Economic and Political) drivers all points to the need of the insurance sector to evolve from the agency- based distribution model to an usage based business model. This paper examines the blockchain technology and its disruptive power in the insurance sector by evaluating the current business process and model in the industry and how this technology can improve this model. This paper concludes by proposing a new process flow for the insurance industry placing emphasis on better values service to the customer using blockchain technology