scholarly journals Evaluating Service-Oriented and Microservice Architecture Patterns to Deploy eHealth Applications in Cloud Computing Environment

2021 ◽  
Vol 11 (10) ◽  
pp. 4350
Author(s):  
Huriviades Calderón-Gómez ◽  
Luis Mendoza-Pittí ◽  
Miguel Vargas-Lombardo ◽  
José Manuel Gómez-Pulido ◽  
Diego Rodríguez-Puyol ◽  
...  
Keyword(s):  
Cloud Computing ◽  
High Performance ◽  
Service Oriented Architecture ◽  
Clinical History ◽  
Computer Assisted ◽  
Care Services ◽  
Architectural Patterns ◽  
Service Oriented ◽  
Microservice Architecture

This article proposes a new framework for a Cloud-based eHealth platform concept focused on Cloud computing environments, since current and emerging approaches using digital clinical history increasingly demonstrate their potential in maintaining the quality of the benefits in medical care services, especially in computer-assisted clinical diagnosis within the field of infectious diseases and due to the worsening of chronic pathologies. Our objective is to evaluate and contrast the performance of the architectural patterns most commonly used for developing eHealth applications (i.e., service-oriented architecture (SOA) and microservices architecture (MSA)), using as reference the quantitative values obtained from the various performance tests and their ability to adapt to the required software attribute (i.e., versatile high-performance). Therefore, it was necessary to modify our platform to fit two architectural variants. As a follow-up to this activity, corresponding tests were performed that showed that the MSA variant functions better in terms of performance and response time compared to the SOA variant; however, it consumed significantly more bandwidth than SOA, and scalability in SOA is generally not possible or requires significant effort to be achieved. We conclude that the implementation of SOA and MSA depends on the nature and needs of organizations (e.g., performance or interoperability).

scholarly journals The Potential of Microservice Architecture for Internet of Things (IoT) in Smart City, a Literature Review

Kursor ◽  
2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Hatma - Suryotrisongko ◽  
Prasasti Karunia Farista Ananto
Keyword(s):  
Internet Of Things ◽  
Literature Review ◽  
Smart City ◽  
Large Scale ◽  
Service Oriented Architecture ◽  
Distributed Applications ◽  
Community Resources ◽  
Service Oriented ◽  
Microservice Architecture

A smart city is a term thatis often used in a literature that refers to a city's intelligence. The visions of smart city are to utilizeits community resources, improving the quality of its services, and reducing the costs for public administration operations. Internet of Things (IoT) is one of the main keys. To accomplish the visions, IoT needs to standardize the technology and web by developing the platform on a large scale. It is a challenge for the city to build widely distributed applications and platforms on the Web. The Microservice Architecture style comes up and offers a lot of convenience and it becomes a new trend for developing Smart City IoT platforms. Before Microservice Architecture, Service Oriented Architecture was previously widely used. To find out Microservice Architecture’s simplicity and potentials, there are two steps to follow: (1) Setting up a Search Strategy on literature review to collect subset of papers with Google Scholar, (2) synthesizing and compiling a subset of literature review to extract data and information to be a literature view. After some reviews of the literatures, most of them agree with the use of microservices architecture in creating or developing a smart city of IoT because the microservices architecture offers a lot and can help the work of  IoT smart city developers.

scholarly journals Data as a Service using Data Hibernation and Service Oriented Architecture in Cloud Computing

2020 ◽  
Vol 8 (5) ◽  
pp. 2432-2436
Keyword(s):  
Cloud Computing ◽  
Performance Improvement ◽  
Service Oriented Architecture ◽  
Modern Technology ◽  
Research Field ◽  
Service Oriented ◽  
Using Data ◽  
Data As A Service ◽  
Cloud Network

Nowadays, Cloud Computing is a promising research field. With the advancement of modern technology, performance improvement of the cloud network has become the buzzword today. Here in this paper, we have proposed the new technique, called ‘Data Hibernation’ where service-oriented architecture plays the key role for the improvement of the cloud network. Moreover, we have designed our algorithm and demonstrated our work graphically that how the overall efficiency or the throughput has reached its apex level of Quality of Service with the subtle benefit of much higher degree of parallelism.

DYNAMIC REST SERVICES ORCHESTRATION USING THE KNOWLEDGE BASE

2019 ◽  
Author(s):  
Kostyantyn Kharchenko
Keyword(s):  
Knowledge Base ◽  
Service Oriented Architecture ◽  
Main Idea ◽  
The Real ◽  
Server Side ◽  
Service Oriented ◽  
Services Orchestration ◽  
Client Side ◽  
Abstract Operation ◽  
Microservice Architecture

The approach to organizing the automated calculations’ execution process using the web services (in particular, REST-services) is reviewed. The given solution will simplify the procedure of introduction of the new functionality in applied systems built according to the service-oriented architecture and microservice architecture principles. The main idea of the proposed solution is in maximum division of the server-side logic development and the client-side logic, when clients are used to set the abstract computation goals without any dependencies to existing applied services. It is proposed to rely on the centralized scheme to organize the computations (named as orchestration) and to put to the knowledge base the set of rules used to build (in multiple steps) the concrete computational scenario from the abstract goal. It is proposed to include the computing task’s execution subsystem to the software architecture of the applied system. This subsystem is composed of the service which is processing the incoming requests for execution, the service registry and the orchestration service. The clients send requests to the execution subsystem without any references to the real-world services to be called. The service registry searches the knowledge base for the corresponding input request template, then the abstract operation description search for the request template is performed. Each abstract operation may already have its implementation in the form of workflow composed of invocations of the real applied services’ operations. In case of absence of the corresponding workflow in the database, this workflow implementation could be synthesized dynamically according to the input and output data and the functionality description of the abstract operation and registered applied services. The workflows are executed by the orchestrator service. Thus, adding some new functions to the client side can be possible without any changes at the server side. And vice versa, adding new services can impact the execution of the calculations without updating the clients.

Patterns for Migration of SOA Based Applications to Microservices Architecture

2021 ◽  
Author(s):  
Vinay Raj ◽  
Ravichandra Sadam
Keyword(s):  
Programming Languages ◽  
Service Oriented Architecture ◽  
Legacy Systems ◽  
Loose Coupling ◽  
Enterprise Service Bus ◽  
Web Based ◽  
Enterprise Applications ◽  
Service Oriented ◽  
Key Features ◽  
Microservice Architecture

Service oriented architecture (SOA) has been widely used in the design of enterprise applications over the last two decades. Though SOA has become popular in the integration of multiple applications using the enterprise service bus, there are few challenges related to delivery, deployment, governance, and interoperability of services. To overcome the design and maintenance challenges in SOA, a new architecture of microservices has emerged with loose coupling, independent deployment, and scalability as its key features. With the advent of microservices, software architects have started to migrate legacy systems to microservice architecture. However, many challenges arise during the migration of SOA to microservices, including the decomposition of SOA to microservice, the testing of microservices designed using different programming languages, and the monitoring the microservices. In this paper, we aim to provide patterns for the most recurring problems highlighted in the literature i.e, the decomposition of SOA services, the size of each microservice, and the detection of anomalies in microservices. The suggested patterns are combined with our experience in the migration of SOA-based applications to the microservices architecture, and we have also used these patterns in the migration of other SOA applications. We evaluated these patterns with the help of a standard web-based application.

Cloud Computing Location-Based Services for Quality Health Care Services Delivery

2014 ◽  
pp. 171-185
Author(s):  
Jalel Akaichi
Keyword(s):  
Cloud Computing ◽  
Health Care Services ◽  
Location Based Services ◽  
Dynamic Changes ◽  
K Nearest Neighbors ◽  
Quality Health Care ◽  
Care Services ◽  
Services Delivery ◽  
Quality Health

This chapter proposes a cloud computing location-based services system able to query points of interest, according to mobile users' preferences and contexts, under dynamic changes of locations. The contribution consists of providing software as a service based on Delaunay Triangulation on road (DTr) able to establish the Continuous k-Nearest Neighbors (CkNNs) on road, while taking into account the dynamic changes of locations from which queries, enhanced by users' preferences and contexts, are issued. The proposed software, implemented on a mobile cloud and exploited by mobile physicians for healthcare institutions localization and selection, considerably improves the quality of services provided for patients in critical situations by permitting real time localization of adequate resources that may contribute to save patients' lives.

Developing Proactive Security Dimensions for SOA

2011 ◽  
pp. 254-276
Author(s):  
Hany F. EL Yamany ◽  
David S. Allison ◽  
Miriam A.M. Capretz
Keyword(s):  
Service Oriented Architecture ◽  
Security Services ◽  
Security Service ◽  
Service Oriented ◽  
Service Consumer ◽  
Web Services Security ◽  
Soa Security ◽  
Security Standards

Security is one of the largest challenges facing the development of a Service-Oriented Architecture (SOA). This is due to the fact that SOA security is the responsibility of both the service consumer and service provider. In recent years, many solutions have been implemented, such as the Web Services Security Standards, including WS-Security and WS-SecurityPolicy. However, those standards are insufficient for the promising new generations of Web 2.0 applications. In this research, we describe an Intelligent SOA Security (ISOAS) framework and introduce four of its services: Authentication and Security Service (NSS), the Authorization Service (AS), the Privacy Service (PS) and the Service of Quality of Security Service (SQoSS). Furthermore, a case study is presented to examine the behavior of the described security services inside a market SOA environment.

Applying Service Oriented Architecture and Cloud Computing for a Greener Traffic Management

2011 ◽  
pp. 678-693
Author(s):  
Ishan Bhalla ◽  
Kamlesh Chaudhary
Keyword(s):  
Cloud Computing ◽  
Traffic Management ◽  
Management System ◽  
Carbon Emission ◽  
Service Oriented Architecture ◽  
Heavy Traffic ◽  
Wireless Data ◽  
Service Oriented ◽  
Traffic Management System ◽  
It Application

Traffic Management System (TMS) is a possible implementation of a Green IT application. It can have direct impact on reducing the greenhouse gases. The focus of this report is to illustrate how event driven SOA design principles can be applied in designing traffic management system. It also discusses how cloud computing concept can be used for TMS application. Traffic during peak hours is a problem in any major city where population growth far exceeds the infrastructure. Frequent stop and start of the cars on the heavy traffic roads and slow moving traffic causes greater fuel consumption, which results in greater emission of carbon gases. If efficient traffic management system can speed up the traffic average speed it will help reduce the carbon emission. As the WiMAX technology reaches maturity and achieves greater reliability and speed for wireless data transmissions new mobile applications are possible. Traffic Management System is one such example. WiMAX can facilitate communication to and from fast moving cars. WiMAX combined with GPS (Global Positioning System) technology can facilitate building an efficient traffic management system. The authors have also discussed various scenarios where Cloud computing technology can be utilised resulting in further optimisation of the computing resources and therefore reducing the carbon emission.

A Hybrid Resource Reservation Method for Workflows in Clouds

2012 ◽  
Vol 4 (4) ◽  
pp. 1-21
Author(s):  
Tyng-Yeu Liang ◽  
Fu-Chun Lu ◽  
Jun-Yao Chiu
Keyword(s):  
Cloud Computing ◽  
Energy Consumption ◽  
High Performance ◽  
Resource Reservation ◽  
Scientific Workflows ◽  
Service Oriented ◽  
Time And Energy ◽  
Gpu Architecture ◽  
Performance Computing ◽  
Oriented System

QoS and energy consumption are two important issues for Cloud computing. In this paper, the authors propose a hybrid resource reservation method to address these two issues for scientific workflows in the high-performance computing Clouds built on hybrid CPU/GPU architecture. As named, this method reserves proper CPU or GPU for executing different jobs in the same workflow based on the profile of execution time and energy consumption of each resource-to-program pair. They have implemented the proposed resource reservation method on a real service-oriented system. The experimental results show that the proposed resource reservation method can effectively maintain the QoS of workflows while simultaneously minimizing the energy consumption of executing the workflows.

Convergence of Interoperability of Cloud Computing, Service Oriented Architecture and Enterprise Architecture

2013 ◽  
Vol 4 (1) ◽  
pp. 43-51
Author(s):  
Susan Sutherland
Keyword(s):  
Cloud Computing ◽  
Enterprise Architecture ◽  
Service Oriented Architecture ◽  
Proof Of Concept ◽  
Cloud Computing Service ◽  
Architectural Model ◽  
Service Oriented ◽  
State Of Art ◽  
Dynamic Links

The research identifies the gap that there is a convergence of interoperability of Cloud Computing (CC), Service Oriented Architecture (SOA) and Enterprise Architecture (EA). Furthermore, it outlines the existing non dynamic links between EA and SOA that are currently practiced in the industry and confirmed by scholarly articles; and provides a state of art of the link that could exist in practice between cloud computing and SOA as researched from the published scholarly material. This researched paper also refers to the planned research to test this theory first by developing a logical architectural model of such a feasibility followed by a Proof of Concept

Design of Quality Aspects in Service Oriented Architecture through Service Level Agreements

2011 ◽  
pp. 1-21
Author(s):  
Marco Massarelli ◽  
Claudia Raibulet ◽  
Daniele Cammareri ◽  
Nicolò Perino
Keyword(s):  
Service Oriented Architecture ◽  
Service Level ◽  
Application Domain ◽  
Service Level Agreements ◽  
Actual Case ◽  
Service Oriented Architectures ◽  
Quality Aspects ◽  
Service Oriented

This chapter gives a solution to design Service Oriented Architectures which defines and manages Service Level Agreements to enforce Quality of Services and achieves adaptivity at runtime. The validation of this proposed approach is performed through an actual case study in the context of the multimedia application domain.

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