scholarly journals Swarm-Like Distributed Algorithm for Scheduling a Microservice-Based Application to the Cloud Servers

Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1553
Author(s):  
Marian Rusek ◽  
Grzegorz Dwornicki
Keyword(s):  
Distributed Applications ◽  
Practical Implementation ◽  
Live Migration ◽  
Cloud Infrastructure ◽  
Application Development ◽  
Cloud Management ◽  
Cloud Application ◽  
Cloud Servers ◽  
Distributed Cloud ◽  
Better Than

Introduction of virtualization containers and container orchestrators fundamentally changed the landscape of cloud application development. Containers provide an ideal way for practical implementation of microservice-based architecture, which allows for repeatable, generic patterns that make the development of reliable, distributed applications more approachable and efficient. Orchestrators allow for shifting the accidental complexity from inside of an application into the automated cloud infrastructure. Existing container orchestrators are centralized systems that schedule containers to the cloud servers only at their startup. In this paper, we propose a swarm-like distributed cloud management system that uses live migration of containers to dynamically reassign application components to the different servers. It is based on the idea of “pheromone” robots. An additional mobile agent process is placed inside each application container to control the migration process. The number of parallel container migrations needed to reach an optimal state of the cloud is obtained using models, experiments, and simulations. We show that in the most common scenarios the proposed swarm-like algorithm performs better than existing systems, and due to its architecture it is also more scalable and resilient to container death. It also adapts to the influx of containers and addition of new servers to the cloud automatically.

Does cloud computing improve team performance and employees' creativity?

Kybernetes ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jing Zou ◽  
Cheng Jian
Keyword(s):  
Cloud Computing ◽  
Team Performance ◽  
Supporting Evidence ◽  
Cloud Infrastructure ◽  
Employee Creativity ◽  
Content Type ◽  
Cloud Management ◽  
Cloud Application ◽  
The Impact ◽  
Cloud Resources

Purpose The present investigation goals to empirically test the role of expert cloud on team performance and employee creativity. Here, the expert cloud comprises cloud application, cloud management, cloud infrastructure and cloud resources. The present study aims to identify important and key criteria and examine the relationships among them. In other words, the purpose of this study to find out the impact and relationship between cloud application, cloud management, cloud infrastructure and cloud resources and team performance and employee creativity. Design/methodology/approach Today, human societies’ rapid growth and the environmental changes that surround us every day are clearly visible. They highly affect our activities. In today’s highly complex organizations, people alone cannot handle all the issues that have arisen. As organizational managers are faced with diverse cultures in the governance of organizations, the need to use work teams with different abilities and specializations to achieve the goals of organizations leads managers to use teamwork and focus on employee creativity. On the other hand, the expert cloud makes it possible for human societies like universities, firms, industries, institutes, businesses and colleges to pool and share their human resources’ skills, knowledge and experiences to meet the competitive era’s demands. Therefore, the current investigation examines the impact of expert cloud on team performance and employee creativity. The research information is collected using an online questionnaire. The data collected is analyzed using AMOS and SMART PLS software. Findings All of the formulated hypotheses are supported. The results have shown that cloud application, cloud management, cloud infrastructure and cloud resources positively and significantly affect team performance and employee creativity. Practical implications Managers must be conscious of the vital role that the professional cloud plays in team performance and the innovation of workers. This paper would also make executives more conscious of the powerful tools in the field of cloud computing. Firms can use the outcomes of this paper investigation to improve team performance and employee creativity. Originality/value It is considered one of the initial efforts to demonstrate the impacts of expert cloud on team performance and employee creativity. This study’s value relies on that practitioners and academics may have supporting evidence on the role played by novel technology such as an expert cloud.

scholarly journals Model of the omni-channel Interaction in the Web 4.0 environment

2018 ◽  
Vol 44 ◽  
pp. 00023
Author(s):  
Anna Chernikova ◽  
Sergey Krasnov ◽  
Sergey Sergeyev
Keyword(s):  
Global Markets ◽  
Entire Group ◽  
Practical Implementation ◽  
Channel Interaction ◽  
Complex Topology ◽  
Scientific Approach ◽  
On Line ◽  
Cloud Servers ◽  
The Web

The practical implementation of the concept “Industry 4.0” entirely depends on the level of coordination between businesses, organizations and the entire group of consumers. The dominating comprehension of such interaction as a net of complex topology where nodes act as objects that have an interface a surface for contacts, results in a neuro-net-concept or the Web 4.0. Within the framework of the Russian national program “National Technological Initiative”, the development of this direction is considered as one of the main priorities. The quality of implementation of the system interaction in this paradigm is greatly influenced by algorithms used in the cloud servers of the nodes included into the structure of the Web 4.0. Besides, operation of businesses in the conditions of global markets will take place in the situation of strict competition and solutions forming the basis of the software have to be based on the scientific approach with the use of the methods of optimization and mathematical models. As the competition in the commercial sphere turned into the contest between the economic efficiency of on-line platforms, this work proposes a particular implementation of the algorithm of omni-channel interaction formed on the basis of a mathematical model.

scholarly journals Ukraine’s experience in resolving the Balkan conflict

2021 ◽  
Vol 5 (S2) ◽  
pp. 785-794
Author(s):  
Viktoriia V. Ruda
Keyword(s):  
Foreign Policy ◽  
European Community ◽  
European Countries ◽  
Comparative Approach ◽  
Practical Implementation ◽  
National Sovereignty ◽  
The Status ◽  
Peripheral Areas ◽  
Development Prospects ◽  
Better Than

The development of a common foreign policy course and the creation of joint defence have become the main tasks of the European Community from the very beginning of its foundation, and the practical implementation of cooperation in these areas turns out to be rather difficult and runs into certain problems. Being part of the European Community, the member countries are aware of the necessity to pursue such a course in order to obtain the status of a full-fledged subject of international politics, but this does not deprive them of their fears about the loss of their national sovereignty and some foreign policy priorities. The purpose of the study is to study the process of formation and development of cooperation between Western European countries in the field of foreign policy, security and defence, as well as using the experience of the countries of the former Republic of Yugoslavia to resolve the situation on the territory of Ukraine. The comparative approach of peripheral areas emphasises the unsettled situation, which in some cases may seem better than internationally structured and is on the path of consolidation, while in other cases destabilization still strongly affects the development prospects of states.

scholarly journals Characterizing PaaS Solutions Enabling Cloud Federations

2016 ◽  
pp. 91-117
Author(s):  
Tamas Pflanzner ◽  
Roland Tornyai ◽  
Ákos Zoltán Gorácz ◽  
Attila Kertesz
Keyword(s):  
Application Development ◽  
Platform As A Service ◽  
Cloud Application ◽  
Flexible Resource ◽  
Recent Trends ◽  
Developer Tools ◽  
Multiple Clouds ◽  
Cloud Infrastructures ◽  
Academic Area

Cloud Computing has opened new ways of flexible resource provisions for businesses migrating IT applications and data to the cloud to respond to new demands from customers. Recently, many businesses plan to take advantage of the flexible resource provision. Cloud Federations envisage a distributed, heterogeneous environment consisting of various cloud infrastructures by aggregating different IaaS provider capabilities coming from both the commercial and academic area. Recent solutions hide the diversity of multiple clouds and form a unified federation on top of them. Many approaches follow recent trends in cloud application development, and offer federation capabilities at the platform level, thus creating Platform-as-a-Service solutions. In this chapter the authors investigate capabilities of PaaS solutions and present a classification of these tools: what levels of developer experience they offer, what types of APIs, developer tools they support and what web GUIs they provide. Developer experience is measured by creating and executing sample applications with these PaaS tools.

Requirements Engineering for Cloud Application Development

2012 ◽  
pp. 137-150
Author(s):  
Holger Schrödl ◽  
Stefan Wind
Keyword(s):  
Cloud Computing ◽  
Information Systems ◽  
Requirements Engineering ◽  
Legal Issues ◽  
Process Models ◽  
Application Development ◽  
Pricing Models ◽  
Industrial Practice ◽  
Cloud Application ◽  
Cost Efficient

In industrial practice, cloud computing is becoming increasingly established as an option for formulating cost-efficient and needs-oriented information systems. Despite the increasing acceptance of cloud computing within the industry, many fundamental questions remain unanswered, or are answered only partially. Besides issues relating to the best architectures, legal issues, and pricing models, suppliers of cloud-based solutions are faced with the issue of appropriate requirements engineering. This means eliciting optimal understanding of the customer’s requirements and implementing this into appropriate requirements of the solution to be realised. This chapter examines selected, established requirements engineering methods in order to study the extent to which they can be applied to the specific requirements of cloud-based solutions. Furthermore, it develops a comparison framework containing the features of cloud computing. This comparison framework is applied to four established process models for requirements engineering. Recommendations for a requirements engineering process adapted to cloud computing are derived.

scholarly journals On The Application of SiO2/SiC Grating on Ag for High-Performance Fiber Optic Plasmonic Sensing of Cortisol Concentration

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1623 ◽  
Author(s):  
Ankit Kumar Pandey ◽  
Anuj K. Sharma ◽  
Carlos Marques
Keyword(s):  
High Performance ◽  
Figure Of Merit ◽  
Fiber Optic ◽  
Limit Of Detection ◽  
Cortisol Concentration ◽  
Practical Implementation ◽  
Angle Of Incidence ◽  
Plasmonic Sensor ◽  
High Performance Fiber ◽  
Better Than

This paper reports on high-accuracy simulation of a grating structure based fiber optic plasmonic sensor for salivary cortisol sensing. Gratings of SiO2 and SiC (one at a time) in combination with a thin Ag layer are considered to be in direct contact with analyte medium (solutions containing different concentrations of cortisol) considering that the groove regions are also filled with analyte. The optimization of Ag layer thickness is carried out to achieve maximum power loss (PL) corresponding to cortisol concentration variation. The variation of PL (in dB) spectra with the angle of incidence (α) is the sensing mechanism of the proposed scheme. Sensing performance is extensively analyzed in terms of sensitivity, limit-of-detection (LOD) and figure-of-merit (FOM) that incorporates both the sensitivity and the width of the corresponding PL curves. While the sensitivity and FOM values are significantly large, the results also reveal that in angular interrogation mode (AIM), an average LOD of 9.9 pg/mL and 9.8 pg/mL is obtained for SiO2 and SiC-based sensor designs, respectively. When the intensity interrogation method (IIM) in place of AIM is considered, an average LOD of 22.6 fg/mL and 68.17 fg/mL is obtained for SiO2 and SiC-based sensor designs, respectively. LOD (with IIM, in particular) is considerably better than the present-state-of-art related to cortisol monitoring. Pragmatic model for possible practical implementation of sensor scheme is also discussed. The involvement of optical fiber in the proposed sensor design makes it possible to implement it as a flexible sensor or for wearable solution for cortisol detection via sweat monitoring as well as for measuring cortisol level in aquaculture tanks where concentration levels are much lower than 10 ng/mL.

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