NextGen Multi-Model Databases in Semantic Big Data Architectures

When semantic big data is managed in commercial settings, with time, the need may arise to integrate and interlink records from various data sources. In this vision paper, we discuss the potential of a new generation of multi-model database systems as data backends in such settings. Discussing a specific example scenario, we show how this family of database systems allows for agile and flexible schema management. We also identify open research challenges in generating sound triple-views from data stored in interlinked models, as a basis for SPARQL querying. We then conclude with a general overview of multi-model data management systems, to provide a wider scope of the problem domain

Software Engineering for Real-Time NoSQL Systems-centric Big Data Analytics

Recent advances in Big Data Analytics (BDA) have stimulated widespread interest to integrate BDA capabilities into all aspects of a business. Before these advances, companies have spent time optimizing the software development process and best practices associated with application development. These processes include project management structures and how to deliver new features of an application to its customers efficiently. While these processes are significant for application development, they cannot be utilized effectively for the software development of Big Data Analytics. Instead, some practices and technologies enable automation and monitoring across the full lifecycle of productivity from design to deployment and operations of Analytics. This paper builds on those practices and technologies and introduces a highly scalable framework for Big Data Analytics development operations. This framework builds on top of the best-known processes associated with DevOps. These best practices are then shown using a NoSQL cloud-based platform that consumes and processes structured and unstructured real-time data. As a result, the framework produces scalable, timely, and accurate analytics in real-time, which can be easily adjusted or enhanced to meet the needs of a business and its customers

Digital omvandling av en skidort: en fallstudie

Digital technology and new ways of benefitting from information have the potential to radically alter business models and change interaction between a company and its customers. Some leading ski resorts are becoming aware of the potential of customer data and the benefits of having a digital service offering. Weisse Arena Gruppe (WAG) is the company behind the LAAX ski resort in Switzerland. WAG formed an internal digitalisation team to professionalise data handling, increase their understanding of the digital realm and build future digital capabilities. This thesis gives reasons for why a company running a ski resort decided to assemble an internal team to build digital services, an area out of their core expertise, instead of relying on external contractors. The factors that were instrumental for the digitalisation team’s results are defined. For this purpose, key persons behind the digitalisation initiative were interviewed. Several factors were fundamental for the success of the digitalisation initiative. The digital services team worked in short development cycles, enabling quick creation of minimum viable products resulting in short feedback loops. The team had the appropriate freedom to form suitable processes and work methods, and support from the CEO throughout the process. Certain web- and mobile development technologies were essential for building impactful services with limited resources in a short time.Digital teknologi och nya sätt att utnyttja information kan potentiellt förändra företagsmodeller och företags växelverkan med kunder på ett fundamentalt plan. Några ledande skidorter börjar förstå möjligheterna som kunddata möjliggör och fördelarna av att ha ett digitalt tjänsteerbjudande. Weisse Arena Gruppe (WAG) är företaget bakom skidorten LAAX i östra Schweiz. WAG grundade ett internt digitaliseringsteam för att professionellt kunna hantera data, skapa digital kompetens och bygga en grund för framtida digitala möjligheter. Detta diplomarbete förklarar varför ett företag som driver en skidort och tillhörande tjänster, bestämde sig för att skapa ett internt team för att utveckla digitala tjänster, ett område utanför företagets kärnkompetens, i stället för att anlita utomstående entreprenörer. De viktigaste faktorerna för resultaten av digitaliseringsteamets arbete definieras. För detta har nyckelpersonerna bakom digitaliseringsinitiativet intervjuats. Flera faktorer var grundläggande för framgången av initiativet. Digitaliseringsteamet använde sig av korta utvecklingsperioder, vilket möjliggjorde utveckling av tjänster och insamling av respons så snabbt som möjligt. Teamet hade nödvändig frihet att skapa egna processer och arbetsmetoder, och verkställande direktörens stöd genom hela processen. Vissa teknologier för utveckling av mobilapplikationer var väsentliga för att bygga betydande tjänster med begränsade resurser inom en kort tid

Towards performance evaluation of cloud service providers for cloud data security

© 2016, Elsevier Ltd. All rights reserved. Today's data is sensitive that requires privacy and security both from the cloud service providers (CSP) as well as from users in its all the form of data states: data at rest, while transferring data, enquiring data, and processing the data. Cloud computing has been applied in the health sector, national security services, banking and other business and companies that store confidential data into the cloud as we have seen in recent years. Therefore, information and data security is a crucial issue that needs to be addressed thoroughly in the cloud computing business. This research deals with the performance analysis of recent cloud data security models. This paper proposes cloud data security models based on Business Process Modeling Notations (BPMN) and simulation results can reveal performances issues related to data security as part of any organizations initiative on Business process management (BPM)

DevOps for Digital Leaders

DevOps; continuous delivery; software lifecycle; concurrent parallel testing; service management; ITIL; GRC; PaaS; containerization; API management; lean principles; technical debt; end-to-end automation; automatio

Sensors as a Service in the Cloud

[CATALÀ] Aquest projecte presenta un sistema basat en el Cloud i la metodologia de servei. El problema que adreça és la construcció d'una plataforma on usuaris finals o entitats puguin accedir a les dades que generen els sensors. S'estableix un mecanisme pel qual els propietaris dels sensors son remunerats.[ANGLÈS] This project presents a system grounded in Cloud technologies and services. The problem that pursues is the implementation of a platform where the users or entities can access the data produced by the sensors. The platform establishes methods to pay to the owners of the sensors

DevOps for Digital Leaders

DevOps; continuous delivery; software lifecycle; concurrent parallel testing; service management; ITIL; GRC; PaaS; containerization; API management; lean principles; technical debt; end-to-end automation; automatio

Mobile application software development

The smartphone application industry has been on a steady rise all over the world, creating new jobs every year, in one of these companies I realised a 5-month internship in Sweden, developing a new feature for their app using React Native and Firebase. In this internship not only did I improved my programming skill but also gained invaluable insight on the industry, agile environments, how to better work as a team and the responsibility of developing a new feature for an established app on the market. In this dissertation I shall go over the history of the app, some stats of the industry, the agile methodology, the tools, frameworks and Services used to develop the feature I was trusted with, the day-to-day life of an agile developer in Equilab and how we overcame some issues.A indústria de aplicações moveis tem estado num crescimento constante por todo o mundo, criando novos postos de trabalho todos os anos, foi numa destas empresas que realizei meu estágio profissional de 5 meses na Suécia, desenvolvendo uma noca característica para aplicação utilizando maioritariamente React Native e Firebase. Durante o estágio aperfeiçoei não só minhas habilidades como programador, mas também ganhei conhecimento da indústria, trabalhei num ambiente Agile, trabalhar melhor em equipa e lidar com a responsabilidade de desenvolver uma nova característica numa aplicação líder do seu mercado. Nesta dissertação eu irei abordar a história das aplicações, algumas estatísticas sobre a indústria, a metodologia Agile, as ferramentas, frameworks e serviços usados para desenvolver a característica com a qual eu fui confiado em realizar, também irei falar como era o dia a dia na vida de um desenvolvedor Agile na empresa Equilab e como superamos alguns dos problemas encontrado

Implementation and evaluation of a container-based software architecture

Recent advances in fields such as Cloud Computing, Web Systems, Internet of Things and Distributed NoSQL DBMS are enabling the development of innovative enterprise information systems that significantly increase the productivity of end users and developers. The aim of this thesis is to explore the new opportunities that these new technologies are bringing to the enterprise world. The new opportunities are explored by investigating the scenario of a medium-sized worldwide-trading company, Fiorital S.p.A. The thesis presents the design of a software architecture for the future information system of the company. The architecture is based on the usage of the Container technology and of the Microservice architectural style. Containers have empowered the usage of Microservices architectures by being lightweight, providing fast start-up times, and having low overhead. Candidate technologies for the implementation of the proposed software architecture are singled out, and the selection rationale is presented. This thesis provides an evaluation of both the candidate architecture and the technologies through the implementation of a prototype and the application of synthetic workloads that mimic stressful use scenarios. The results show that, in spite of the relative immaturity of some of the candidate technologies, the information system's candidate architecture is appropriate and that a company like Fiorital would considerably benefit from it

Sustainable IoT Sensing Applications Development through GraphQL-Based Abstraction Layer

Internet of Things (IoT) networks are mostly comprised of power-constrained devices, therefore the most important consideration in designing IoT applications, based on sensor networks is energy efficiency. Minor improvement in energy conservation methods can lead to a significant increase in the lifetime of IoT devices and overall network. To achieve efficient utilisation of energy, different solutions are proposed such as duty cycling optimization, design changes at the MAC layer, etc. In this paper, we propose a new approach to overcome this challenge in cloud-based IoT sensing applications, based on integration of an abstraction layer with constrained application mechanism. To achieve energy conservation and efficient data management in IoT sensing applications, we incorporate modules of efficient web framework with cloud services, in order to minimize the number of round trips for data delivery and graph-based data representation. Our study is the first attempt in the literature, to the best of our knowledge, which introduces the potential of this integration for achieving the aforementioned objectives in the target applications. We implemented the proposed interfacing of abstraction layer in constrained applications, to develop a testbed using Z1 IoT motes, Contiki OS and GraphQL web framework with Google cloud services. Experimental comparisons against baseline REST architecture approach show that our proposed approach achieved significant reductions in data delivery delay and energy consumption (minimum 51.53% and 52.88%, respectively) in IoT applications involving sensor network.</jats:p