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.

scholarly journals A Framework for Migration of SOA based Applications to Microservices Architecture

2021 ◽  
Vol 21 (2) ◽  
pp. e18
Author(s):  
Vinay Raj ◽  
Ravichandra Sadam
Keyword(s):  
Service Oriented Architecture ◽  
User Requirements ◽  
Loose Coupling ◽  
Enterprise Service Bus ◽  
Client Server ◽  
Loosely Coupled ◽  
Service Oriented ◽  
Key Features ◽  
Independent Design ◽  
Server Architecture

This Distributed systems have evolved rapidly as the demand for independent design, and deployment ofsoftware applications has increased. It has emerged from the monolithic style of client-server architecture toservice-oriented architecture, and then to the trending microservices. Monolithic applications are difficult toupdate, maintain, and deploy as it makes the application code very complex to understand. To overcome the designand deployment challenges in monolithic applications, service oriented architecture has emerged as a style ofdecomposing the entire application into loosely coupled, scalable, and interoperable services. Though SOA hasbecome popular in the integration of multiple applications using the enterprise service bus, there are fewchallenges related to delivery, deployment, governance, and interoperability of services. Additionally, the servicesin SOA applications are tending towards monolithic in size with the increase in changing user requirements. Toovercome the design and maintenance challenges in SOA, microservices has emerged as a new architectural styleof designing applications with loose coupling, independent deployment, and scalability as key features.

Airport Enterprise Service Bus with Self-Healing Architecture (AESB-SH)

2011 ◽  
Vol 1 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Issam Al Hadid
Keyword(s):  
New Technologies ◽  
Service Oriented Architecture ◽  
Legacy Systems ◽  
Self Healing ◽  
Enterprise Service Bus ◽  
Information Accessibility ◽  
Automatic Information ◽  
Healing Agent ◽  
Service Oriented ◽  
Information Interchange

Airports need to adapt new technologies to react effectively and quickly to customers’ needs and to provide a better service such as the electronic ticket. In addition to the challenges of the ability to respond to the growing requirements of the automatic information interchange between the different systems to ensure safe and efficient airport operations. This paper provides an architecture based on the Service Oriented Architecture (SOA) that improves the information accessibility and sharing across the different Airport’s departments, integrates the existing legacy systems with other applications, and improves and maximizes the system’s reliability, adaptability, robustness, and availability using the Self-Healing Agent.

Research for SOA Frame Based on WebSphere Platform

2011 ◽  
Vol 121-126 ◽  
pp. 4074-4079
Author(s):  
Yue Jin Lin ◽  
Bing Yue Liu ◽  
Hui Ling Chen
Keyword(s):  
Web Service ◽  
Programming Languages ◽  
Data Storage ◽  
Operating Systems ◽  
Service Oriented Architecture ◽  
Service Development ◽  
Loose Coupling ◽  
Application Architecture ◽  
Service Oriented ◽  
System 2

To meet the requirements of enterprises in different developing phases, often using the latest technology under the circumstances that lead to existing many and various hardware, operating systems, middleware, programming languages, data storage, reusable redundant code in the enterprise. Service-Oriented Architecture (SOA)[1] is naturally chose as an application architecture by many enterprises because of its innate loose coupling and co-operating. In this paper you will see the Web service development tools supplied by WebSphere platform and you will also see that Web service function which is supplied by J2EE can easily build up SOA system [2] and visit the the existing business process.

Improved Airport Enterprise Service Bus with Self-Healing Architecture (IAESB-SH)

2011 ◽  
pp. 223-240
Author(s):  
Issam Al Hadid
Keyword(s):  
Web Service ◽  
Service Oriented Architecture ◽  
The Self ◽  
Legacy Systems ◽  
Self Healing ◽  
Enterprise Service Bus ◽  
Information Accessibility ◽  
Healing Agent ◽  
Service Oriented

This chapter introduces the different aviation and airport Information Technology systems. Also, this chapter provides architecture based on the Service Oriented Architecture (SOA) that improves the information accessibility and sharing across the different airport departments, integrating the existing legacy systems with other applications, and improving and maximizing the system’s reliability, adaptability, robustness, and availability using the self-healing agent and virtual Web service connector to guarantee the quality of service (QoS).

PROFESSIONALS FOR INTELLECTUAL SERVICE-ORIENTED DISTRIBUTED COMPUTING ENVIRONMENTS

2019 ◽  
Author(s):  
Anatoly Petrenko
Keyword(s):  
Distributed Computing ◽  
Programming Languages ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Special Software ◽  
Service Oriented ◽  
Business Functions ◽  
Subject Areas ◽  
Computing Environments ◽  
Microservice Architecture

A new programming paradigm is considered, not related to objects, but to business processes and their components — business functions, when the layout of applications is carried out by identifying and calling services (special software components with unified interfaces), available on the network to perform the necessary task. This approach is independent of specific programming languages ​​and operating systems, and involves the use of a service-oriented architecture (SOA) of applications built on formalized business processes whose functions are presented as reusable services with transparently described interfaces. The fundamentals of the educational program for the training of specialists are considered who are able to meet the need for effective implementation of new paradigms of distributed computing (on the example of cloud computing, microservice architecture, semantic technologies); for creating an online toolkit that allows end users to dynamically compile application workflows according to their scripts in different subject areas; for filling and merging repositories of web services that can run on different cloud sites in distributed computing environments.

Research of E-Government System Architecture Based on SOA-ESB

2012 ◽  
Vol 479-481 ◽  
pp. 1137-1140
Author(s):  
Wei Li Huang ◽  
Fang Wang
Keyword(s):  
System Architecture ◽  
System Integration ◽  
Service Oriented Architecture ◽  
Electronic Government ◽  
Loose Coupling ◽  
Government Information ◽  
Enterprise Service Bus ◽  
Service Oriented ◽  
Intelligent Management ◽  
Forward System

The current E-government system faced the problem of system heterogeneous and government information scattered. The traditional E-government system architecture can’t properly solve the problem of information islands because of its slow response, not easy to expand. This paper put forward system architecture based on SOA-ESB, and analyzed its principle. SOA (Service-Oriented Architecture) changed function into service, then the ESB (Enterprise Service Bus) provide the intelligent management and integrated to service, at the last, realize the electronic government affairs system integration and information sharing. The structure has characteristics of loose coupling, scalability and maintainability.

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.

scholarly journals Introduction to Containerization

2020 ◽  
Vol 6 (12) ◽  
pp. 294-300
Author(s):  
Raghav Goel and Dr. Bhoomi Gupta
Keyword(s):  
Large Scale ◽  
Software Engineer ◽  
Service Oriented Architecture ◽  
Use Case ◽  
Production Environment ◽  
Code Base ◽  
Enterprise Applications ◽  
Service Oriented ◽  
Multiple Services ◽  
Local Machine

Are you a software engineer/developer/coder or maybe even a tech enthusiast who is thinking of agility, parallel development and reducing cost. In the early twentieth century, we witnessed the rise of Service Oriented Architecture (SOA), which is a software architecture pattern that allows us to construct large-scale enterprise applications that require us to integrate multiple services, each of which is made over different platforms and languages through a common communication mechanism, where we write code and multiple services talk to each other’s for a business use case, but sometimes we end up with one big monolithic code base whose maintenance becomes difficult. Nowadays clients are using cloud and paying for on-demand services without effectively utilizing resources. These problems invite micro-services. In this paper, I am going to discuss how one should use scale application in a production environment and local machine

Enterprise Integration With the Structural Services Architectural Style

2019 ◽  
pp. 352-392 ◽  
Author(s):  
José Carlos Martins Delgado
Keyword(s):  
Service Oriented Architecture ◽  
Architectural Style ◽  
Enterprise Integration ◽  
Representational State Transfer ◽  
Advantages And Disadvantages ◽  
Architectural Styles ◽  
State Transfer ◽  
Enterprise Applications ◽  
Service Oriented ◽  
Structural Compliance

The Service-Oriented Architecture (SOA) and Representational State Transfer (REST) architectural styles are the most used for the integration of enterprise applications. Each is more adequate to a different class of applications and exhibits advantages and disadvantages. This chapter performs a comparative study between them. It is shown that SOA and REST are dual architectural styles, one oriented towards behavior and the other towards state. This raises the question of whether it is possible to combine them to maximize the advantages and to minimize the disadvantages. A new architectural style, Structural Services, is proposed to obtain the best characteristics from SOA and REST. As in SOA, services are able to offer a variable set of operations and, as in REST, resources are allowed to have structure. This style uses structural interoperability, based on structural compliance and conformance. A service-oriented programming language is also introduced to instantiate this architectural style.

A Role of Enterprise Service Bus in Building Web Services

2017 ◽  
pp. 46-58
Author(s):  
Dinesh Sharma ◽  
Devendra Kumar Mishra
Keyword(s):  
Web Services ◽  
Business Processes ◽  
Service Oriented Architecture ◽  
Enterprise Service Bus ◽  
Fast Processing ◽  
Service Oriented ◽  
Open Standards ◽  
Or Organization ◽  
Services Use

Present is the era of fast processing industries or organization gives more emphasis for planning of business processes. This planning may differ from industry to industry. Service oriented architecture provides extensible and simple architecture for industry problem solutions. Web services are a standardized way for developing interoperable applications. Web services use open standards and protocols like http, xml and soap. This chapter provides a role of enterprise service bus in building web services.

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