Гібридна сервісна модель організації доступу до електронних ресурсів у хмаро орієнтованому навчальному середовищі

Nowadays, the search for innovative technological solutions to the organization of access to electronic learning resources in the university and their configuration within the environment to fit the needs of users and to improve learning outcomes has become key issues. These solutions are based on the emerging tools among which cloud computing and ICT outsourcing have become very promising and important trends in research. The problems of providing access to electronic learning resources on the basis of cloud computing are the focus of the article. The article outlines the conceptual framework of the study by reviewing existing approaches and models for the cloud-based learning environment’s architecture and design, including its advantages and disadvantages, and the features of its pedagogical application and the experience of it. The hybrid service model of access to learning resources within the university environment is described and proved. An empirical estimation of the proposed approach and current developments in its implementation are provided.Нині питання пошуку інноваційних технологічних рішень щодо організації доступу до електронних освітніх ресурсів і їх конфігурації в середовищі університету з метою більш повного задоволення потреб користувачів і поліпшення результатів навчання постають ключовими. Ці рішення засновані на новітніх засобах, серед яких – технології хмарних обчислень та механізм ІКТ аутсорсингу, що постають перспективним предметом досліджень. Проблеми забезпечення доступу до електронних освітніх ресурсів на основі засобів хмарних обчислень знаходяться в центрі уваги статті. У статті висвітлено концептуальні основи дослідження і проведено огляд існуючих підходів і моделей архітектури та дизайну хмаро орієнтованого середовища навчання, розглянуто їх переваги і недоліки, особливості і педагогічний досвід їх застосування. Обґрунтовано гібридну сервісну модель організації доступу до навчальних ресурсів у середовищі університету. Здійснено емпіричну оцінку пропонованого підходу та досвіду його використання

Системи комп'ютерної математики в хмарному середовищі навчання освітніх установ

The article highlights the promising ways of providing access to the mathematical software in higher educational institutions. It is emphasized that the cloud computing services implementation is the actual trend of modern ICT pedagogical systems development. The analysis and evaluation of existing experience and educational research of different types of mathematical software packages use are proposed. The methodological guidance on the organization of the cloud-based learning environment in higher educational institutions using the systems of computer mathematics (SCM) is outlined. The advantages and disadvantages of different cloud service models of access to SCM are described. The cloud-based learning component with the use of Maxima system is described and evaluated.У статті висвітлено перспективні шляхи забезпечення доступу до програмно-математичного забезпечення у вищих навчальних закладах. Слід підкреслити, що реалізація обчислювальних послуг хмари фактична тенденція розвитку сучасних ІКТ педагогічних систем. Запропоновано аналіз і оцінка існуючого досвіду та досліджень в галузі освіти різних видів математичного використання програмних пакетів. Розглянуто методичний посібник з організації хмарного середовища навчання у вищих навчальних закладах з використанням систем комп'ютерної математики (СКМ). Описані переваги та недоліки різних моделей хмарних послуг доступу до SCM. Описано і оцінено хмарний компонент, що базується на основі навчання з використанням системи Maxima

INVESTIGATIVE APPROACH IN OPERATIONS RESEARCH LEARNING USING MAXIMA SYSTEM

In the article the problems of using the systems of computer mathematics (SCM) as a tool to support the teaching and research activities in the field of informatics and mathematics disciplines training are investigated. The role of SCM in the process of bachelors of informatics training and special aspects of pedagogical applications of these systems in the “Operations research” study is defined. The main characteristics of SCM MAXIMA and the ways of organizing access to it both in local and the cloud-oriented implementation are considered. The results of the pedagogical experiment on MAXIMA application to support the investigative approach to operation research study and the analysis of its conclusions are reported. The use of SCM Maxima in the process of “Operations research” teaching aims at the forming students’ ICT-competences, including in a cloud-based environment due to: the acquaintance with functional characteristics of SCM Maxima; developing skills of mathematical research of the applied tasks, in particular the construction of mathematical models; mastering programming in the SCM Maxima; obtaining the necessary knowledge base for studying other disciplines; increasing the level of informatics acquirement by means of the extensive use of SCM and cloud oriented systems in the educational process and research work. The aim of the research is justification of Maxima system use of in the process “Operations research” teaching in the pedagogical university as enchasing the investigative approach to learning and determination of the perspective ways of its introductio

Information technology governance maturity and technology innovation in higher education: factors in effectiveness

Prior research has explored many facets of innovation, provided models of governance maturity, and analyzed the impact of corporate decision-making on innovation. However, there is little research on IT governance maturity in higher education or on IT innovation in organizations outside of the IT industry. Findings from previous research were ambiguous regarding whether a mature IT governance process helps or hinders innovation. This study fills a gap in existing knowledge by reviewing the literature and examining the interaction of IT governance and information technology innovation at five major U.S. universities. It provides insights into the structures and processes necessary for IT governance to facilitate technology innovation and the factors required for effective IT governance in higher education. Highly effective IT governance processes focused on collaboration and communication were associated with greater integration of radical innovation into institutional processes than effective IT governance processes that focused primarily on the prioritization of large enterprise projects. Incremental technology innovations were pervasive among all schools studied. IT governance was found to be more effective under a delegated model of decision-making authority that empowers IT governance bodies than under a CIO-centric model. The inclusion of a faculty, students and business units in IT governance committees was associated with a stronger innovation culture

VM Selection Process Management for Live Migration in Cloud Data Centers

With immense success and fast growth within the past few years, cloud computing has been established as the dominant computing paradigm in information technology (IT) industry, wherein it utilizes dissipated resource benefits and supports resource sharing and time access flexibility. The proliferation of cloud computing has resulted in the establishment of large-scale data centers across the world, consisting of hundreds of thousands, even millions of servers. The emerging cloud computing paradigm provides administrators and IT organizations with considerable freedom to dynamically migrate virtualized computing services among physical servers in cloud data centers. Normally, these data centers incur very high investment and operating costs for the computing and network devices as well as for the energy consumption. Virtualization and virtual machine (VM) migration offers significant benefits such as load balancing, server consolidation, online maintenance and proactive fault tolerance along data centers. VM migration relies on how to determine the trigger condition of VM migration, select the target virtual machine, and choose the destination node. As a result, dynamic VM migration in the scope of resource management is becoming a crucial issue to emphasize on optimal resource utilization, maximum throughput, minimum response time, enhancing scalability, avoiding over-provisioning of resources and prevention of overload to make cloud computing successful. Intelligent host underload/overload detection, VM selection, and VM placement are the primary means to address VM migration issue. Therefore, these three problems are considered to be the most common tasks in VM migration. This thesis presents novel techniques, models, and algorithms, for distributed dynamic consolidation of virtual machines in cloud data centers. The goal is to improve the utilization of computing resources and reduce energy consumption under workload independent quality of service constraints. The proposed approaches are distributed and efficient in managing the energy-performance trade-off

NASA Technology Plan 1998

This NASA Strategic Plan describes an ambitious, exciting vision for the Agency across all its Strategic Enterprises that addresses a series of fundamental questions of science and research. This vision is so challenging that it literally depends on the success of an aggressive, cutting-edge advanced technology development program. The objective of this plan is to describe the NASA-wide technology program in a manner that provides not only the content of ongoing and planned activities, but also the rationale and justification for these activities in the context of NASA's future needs. The scope of this plan is Agencywide, and it includes technology investments to support all major space and aeronautics program areas, but particular emphasis is placed on longer term strategic technology efforts that will have broad impact across the spectrum of NASA activities and perhaps beyond. Our goal is to broaden the understanding of NASA technology programs and to encourage greater participation from outside the Agency. By relating technology goals to anticipated mission needs, we hope to stimulate additional innovative approaches to technology challenges and promote more cooperative programs with partners outside NASA who share common goals. We also believe that this will increase the transfer of NASA-sponsored technology into nonaerospace applications, resulting in an even greater return on the investment in NASA