Service Oriented Architecture Architecture Research Articles

Implementation of Service Oriented Architecture in Mobile Applications to Improve System Flexibility, Interoperability, and Scalability

This research aims to apply Service Oriented Architecture (SOA) to mobile applications to improve the flexibility, interoperability, and scalability of the system. SOA is an approach that enables better integration between different components in an application architecture. Mobile applications, as an integral part of everyday life, require high flexibility and adaptability to changing user needs. The research method used involves application requirements analysis, SOA architecture design, and implementation on an existing mobile application. Through the implementation of SOA, resource management and service distribution become more efficient, making it easy to add or change features without affecting the entire system. Test results show improved application performance and responsiveness, along with the ability to easily integrate services from multiple sources. In addition, the SOA architecture provides flexibility in the development and maintenance of mobile applications, accelerating the development process and minimizing the impact of changes. This research contributes to the development of mobile applications by introducing the SOA approach as an architectural foundation. The implementation of SOA in mobile applications is expected to guide developers in creating systems that are more resilient, adaptive, and easy to integrate with rapidly evolving software environments.

A model of service-oriented architecture of e-certification system to support boat registration and site visit inspection to support maritime safety and crew health inspection

AbstractThis article describes the architecture of software services that provide registration of small boat data to build maritime safety. The proposed system architecture which so-called SIMKAPEL aims to support small boat registration for maritime safety. It is developed from a conventional service-oriented architecture (SOA) with an open standard for data interoperability between elements. The goal of this research is to implement and evaluate the proposed architecture to support small boat registration and e-certification. Several parts of the architecture have been implemented as a platform that provides core services and data sources to be used by Ministry of Transportation, Directorate General of Sea Transportation, and other government agencies. Finally, the proposed SIMKAPEL platform with the SOA architecture is evaluated for its benefits to users through the expert opinion survey to measure its efficiency. The analysis results showed that SOA-based SIMKAPEL is feasible to use as a boat e-certification system. Furthermore, experiment results provide three parameters (e.g., maritime safety, namely, cargo/passengers, boat safety facilities, and maritime safety systems) with efficiency values of 42%, 46%, and 42%, respectively. The parameter with the highest efficiency shows a big effect on the level of safety of the boat and passengers. Thus, the parameters that need to be prioritized and need boat owners’ attention are cargo/passenger, boat safety equipment, and maritime safety system.

Performance and complexity comparison of service oriented architecture and microservices architecture

Microservices has emerged as a new architectural style of designing applications to overcome the challenges of service oriented architecture (SOA). With the evolution of microservices architecture, architects have started migrating legacy applications to microservices. However, some of the architects are in chaos whether to migrate the application from SOA to microservices or not. The need for empirical evaluation and comparison of both the SOA and microservices architecture is also on-demand. This work helps the software architects in better understanding of the technical differences between both styles. We, therefore, present a comparison of a web application that is designed using both SOA and microservices architectures. The comparison is presented with two different parameters: 1) complexity with architectural metrics; 2) performance with load testing. It is clear from the results that though the complexity of microservices architecture is high, the response time for processing the requests is very fast compared to SOA services.

Service Oriented Architecture (SOA) and Fuzzy AHP-SAW for Lecturer Performance Analysis in Real-time

Service-Oriented Architecture (SOA) is a way to use web services to model large software systems. SOA architecture is also a successful model at the moment. SOA does not have a formula for analyzing data, so collaborative methods are needed that can present information that has added value. One of them is the Fuzzy AHP-SAW method to analyze the performance of lecturers at tertiary institutions with data sources applying SOA methods for data integration in academic information systems in real-time. Lecturer performance can be monitored in real time, so that it can be used as material for decision making at the Indramayu State Polytechnic appropriately. Message delivery services performed by the web service with 150 performance table records, 69 lecturer records tables, 6 record study programs and 3 record majors have been successful. fuzzy AHP fuzzy analysis method to find the best lecturers has been successfully carried out by producing fuzzy vector weights (w) performance performance criteria (C1) 0.43, research (C2) 0.29, dedication (C3) 0.11 and publication (C4) 0.17 with the number of lecturers (alternative) as many as 69. The results show an alternative code A063 with a C1 value of 0.38 C2 0.22 C3 0.08 C4 0.15 and a preference of 0.844 getting the first rank.

E2SM: a security tool for adaptive cloud‐based service‐oriented applications

The issue of security in the distributed system landscape of a service-oriented architecture (SOA) is a challenging one. No longer is it limited to a local application or an application domain, security must now work across a range of applications and business processes interacting with each other. This is even more true when SOA-based applications are provisioned in the cloud. Firstly, cloud applications components, and the data they might handle, that were once silos, are now being exposed as services by distinct and distrusted tenants. Secondly, such applications are often adaptive when they are provisioned in cloud environments. This study proposes an end-to-end security model (E2SM) that aims to protect data confidentiality in adaptive cloud-based SOA applications. E2SM allows the setting of data-centric security policies that go beyond services boundaries. First, security configuration is automatically calculated starting from a few intuitive business-oriented security settings. Then, the configuration is updated with minimal overhead if security policies are dynamically modified and/or SOA architecture is reconfigured. A security tool is implemented according to the proposed model. As for validation, the tool was used to secure a healthcare business process.

Platform Gamifikasi untuk Perkuliahan

Gamification in lecturing has a lot of variety designs. A flexible platform is needed for that matter. This research aims to develop a gamification platform for lecturing that flexible, has a good performance and acceptable by users. Generic Gamification Platform (GGP) concept is used to develop platform. GGP is a kind of gamification solution that applies service oriented architecture Architecture (SOA) principles and puts gamification components (data, logic and rewards) and Information System (IS) separately. The platform has some capabilities such as able to manage game mechanics, actions, tasks and rules. The other platform capabilities are able to auto generate rules and to be integrated to IS. The results of tests show that a gamification platform for lecturing can be developed. The platform has a good level of flexibility, has a good performance, and acceptable by users (5 lecturers and 2 non-lecturers but well knowing on lecturing activities). Its flexibility level is 85%. Its average of response time on event execution is lower than 336ms. Its System Usability Scale (SUS) average score is 60 and its acceptability range in low marginal.

Performance and Challenges of Service-Oriented Architecture for Wireless Sensor Networks.

Wireless Sensor Networks (WSNs) have become essential components for a variety of environmental, surveillance, military, traffic control, and healthcare applications. These applications face critical challenges such as communication, security, power consumption, data aggregation, heterogeneities of sensor hardware, and Quality of Service (QoS) issues. Service-Oriented Architecture (SOA) is a software architecture that can be integrated with WSN applications to address those challenges. The SOA middleware bridges the gap between the high-level requirements of different applications and the hardware constraints of WSNs. This survey explores state-of-the-art approaches based on SOA and Service-Oriented Middleware (SOM) architecture that provide solutions for WSN challenges. The categories of this paper are based on approaches of SOA with and without middleware for WSNs. Additionally, features of SOA and middleware architectures for WSNs are compared to achieve more robust and efficient network performance. Design issues of SOA middleware for WSNs and its characteristics are also highlighted. The paper concludes with future research directions in SOM architecture to meet all requirements of emerging application of WSNs.

Soft Architectural Distance (SAD): How Far is the Legacy Architecture from SOA Architecture Principle?

It is a well-accepted fact that technology is changing rapidly, hence the need to keep upgraded with latest trends is the key to success. This is especially true for big enterprises where the challenge is not only to keep the enterprise running but also to collaborate with other enterprises doing similar business. So, there is a definite need to transform such legacy applications running in organization. This study presented here helps to analyze the current state of LEGACY software architecture and develops a methodology to compare it with Service Oriented Architecture (SOA). The notion of Soft Architectural Distance (SAD) is developed in this work. Degree of SADness will indicate the level of gaps in current architecture w.r.t. Service Oriented Architecture (SOA). Higher the SAD score greater is the GAP and likely to enter in legacy crisis. This SAD score is normalized to value 1 (highest). Then threshold can be defined / decided suitably for any organization. If the evaluation score goes beyond this threshold value it is recommended to improve the architecture or move next steps in legacy transformation strategy. Work is aimed to benefit industry in decision making process for legacy transformation projects. It is also useful in architectural analysis of existing systems.

Identifying SOA Security Threats using Web Mining

Service Oriented Architecture (SOA) became a dominant paradigm for enterprise computing. The web services are the implementation of SOA that works for heterogeneous platforms as they use common Internet protocols for communication and simple text format such as XML for data representation. The basic SOA architecture does not contain any security solution within it and the security is applied to SOA as an ad-hoc manner and also it depends on the internal architecture of the security products. There is no comprehensive security solution is achieved yet for SOA. This paper identifies the SOA security threats using the data mining technique -web mining. At the end of this paper, a customizable security solution for SOA in the form of framework is presented.

FEATURE-BASED ANALYSIS INTO THE TREND OF SOFTWARE TECHNOLOGIES FROM TRADITIONAL TO SERVICE ORIENTED ARCHITECTURE AND SAAS CLOUD

There are issues of confusion between the concepts of Service Oriented Architecture (SOA) and Software as a Service (SaaS) which affect on the benefits they offer like cost reduction and agility. To solve this problem, the paper aims to explore the concepts of SaaS and SOA in order to give better understanding of these two technologies. Since SaaS cloud is getting more popular day by day and many companies are shifting to apply SaaS solutions, this motivates us to make a clear understanding of the concepts of SaaS delivery model and SOA architecture. Therefore, in this research we have reviewed the concepts and features of both SaaS cloud and SOA and then compared them with the traditional on-premise software.

Design of Prototype System for Seafloor Observatory Network

Developing the seafloor observatory network(SONet) is very significant for the human to explore the ocean resources. The information system of seafloor observatory network provides a platform for scientists to research the seafloor activities, which is a kind of open and complex system referring to diverse engineering and disciplines. The data acquiring, storing and management of the observatory instruments are the major parts of information integration. A prototype system based on the SOA(Service-oriented Architecture) is designed to manage information and knowledge in SONet. The SOA architecture, interface and device encoding mechanism are presented. Benefit from this, construction and application of the system can provide a uniform information and knowledge platform in the ocean field.

Research and Implementation of Enterprise Application Integration Based on SOA

In essence, Service Oriented Architecture (SOA) is distributed and shall not have any centralized control point. Any application can access an SOA network for interaction as long as it complies with the corresponding standards. A centralized SOA architecture can also be regarded as a part of SOA. The birth and development of SOA provides a new integration technology for enterprise applications. At the same time, the IT infrastructure could provide a better service, let the enterprise, customer, partner, supplier and distributor attend commercial activity conveniently and get information what they want. In order to attain this aim, they always use integration. Through this way all business entities would be related in together, share commercial data, and complete the commercial activity together. But tradition "point-to-point" integrated method unable to satisfy the enterprise's electronic commerce demand and cause high cost and low efficiency. An integration solution based on SOA(face service construction) is put forward, which utilizes the open standard and protocol, from the global viewpoint, connect the enterprise's business process and IT infrastructure. Then a unified, standardized integration platform will be established.

Semantic Discovery of Web Services through Social Learning

The increasing numbers of web services impose automatic discovery process in Service Oriented Architecture (SOA). But the existing SOA enables only syntactic discovery which produces coarse irrelevant results or sometimes no results. Different researches challenge this problem by introducing semantic discovery process in SOA to enable relevant and desired search results. These research outcomes cannot discover services effciently which are created independently with different knowledge bases. To overcome these problems, a new architecture of SOA is proposed which incorporates a new adaptive technique called social learning that improves service provider's domain ontology from service consumer's concept contributions and thus eventually makes the service more semantically discoverable. The proposed architecture contains new similarity measure and automatic merging algorithms on weighted ontology. From mathematical reasoning it is induced that the proposed architecture reduces overlapping concepts and thus more relevant discovery results are ensured. To test the proposed architecture's performance, a prototype of Universal Description Discovery and Integration (UDDI) is implemented and a simulation is conducted with real data set of OWL-S Technical Chart (OWLS-TC). About 67% noise responses from syntactic search (N-Gram String Distance algorithm) are reduced in the proposed architecture. The results also illustrate the proposed architecture's capabilities of concept learning and so about significant improvement in service discovery after a few social concept contributions.

The Design of Information Platform Structure Used in Expressway Management Based on SOA Frame

On the basis of the study on the expressway management business flow as well as the SOA architecture concept, this paper designs the overall framework for a systematical expressway management information platform, which includes network of 3 levels, grading processing, comprehensive monitoring, comprehensive information application management, web portal and security system, and then designs the overall technical frame of this platform. Road administration is the core part of highway administration and the concentrated reflection of external highway administrative management. In addition to the approval of highway property, construction, maintenance and management, its main contents also involve the highway maintenance, highway entrance fee management and other road maintenance. It covers a wide range and there is so much information of deferent types to be processed and used. Although domestic and foreign roads and road administration departments have some information management systems in use, some are special highway road administration information systems[1,2], and some are highway comprehensive information management systems[3], the integrated comprehensive highway information management contents are lack of research, and the professional, comprehensive, open road administration information platform has not been established yet. Therefore, the author conducted the design of constructing advanced road administration information platform structure. This platform uses the service oriented architecture (SOA), integrates advanced information network technology, data communications monitoring and transmission technology, electronic control technology, computer processing technique with 3S, PDA and other advanced technologies, so that it is effectively integrated and used in the highway information management. The construction of the platform will realize the effective and scientific management for highways business, ensuring that the highways are unblocked, and maintaining the road property and rights of highways, thus promoting the development of the industrial management information.

Visual understanding industrial workflows under uncertainty on distributed service oriented architectures

Service Oriented Architecture (SOA) is an evolution of distributed computing based on the request/reply design paradigm for synchronous and asynchronous applications. In such architectures, application developers or system integrators can build scenarios by composing one or more services without knowing the services’ underlying implementations. In this paper, we adopt a SOA framework for on-line scheduling complex industrial workflows. The proposed SOA consists of three main layers; the input layer, the benchmarking layer, the prediction layer and the scheduler. The main innovation of our SOA architecture is the prediction layer that supports computer vision tools able to visually observe how an industrial workflow is actually executed. This way, we can automatically estimate the actual execution time for a process. In particular a new self-initialized visual tracker algorithm is proposed in this paper to robustly trace workers’ trajectory in a plant via visual observations. Then, part-to-whole curve matching is presented so as to find correspondences among the traced curve and the ideal one and thus improving scheduler efficiency. The input layer interoperably describes industrial operations using the XPDL (an XML-based) format. The benchmarker evaluates much faster than real-time and in an off-line mode how long it takes for an industrial workflow to be executed on a given resource guaranteeing an almost real-time implementation of the video processing algorithms on the plant. The last component of the proposed SOA is the scheduler with the goal to assign the workflows to the available resources. In this paper, a Maximum Benefit First (MBF) scheduler is presented which maximizes the total gain received by the industry when completing execution of all the beneficial operations with minimum violations of their delivery deadlines (that is with the minimum compensations). Experiments have been conducted on a real-world industrial plant of Nissan Iberica automobile construction indicating the efficiency of the proposed system.

Data integration method based on SOA software architecture

According to the autonomy, semantic complexity and diversity of cross-platform of data, as well as combining the applications and requirements of digital business platform, a data integration method based on Service Oriented Architecture ( SOA) software architecture was proposed in this paper. The proposed method, which was on the basis of Java Business Integration ( JBI) , could solve the problems of semantic aspect, multiple messages, and autonomy issues by means of adding four service modules. Finally, the proposed method was implemented by combining the relative techniques and system architecture of SOA.

Design and Implementation of Web-Based Mobile Electronic Medication Administration Record

Patients' safety is the most essential, critical issue, however, errors can hardly prevent, especially for human faults. In order to reduce the errors caused by human, we construct Electronic Health Records (EHR) in the Health Information System (HIS) to facilitate patients' safety and to improve the quality of medical care. During the medical care processing, all the tasks are based upon physicians' orders. In National Taiwan University Hospital (NTUH), the Electronic Health Record committee proposed a standard of order flows. There are objectives of the standard: first, to enhance medical procedures and enforce hospital policies; secondly, to improve the quality of medical care; third, to collect sufficient, adequate data for EHR in the near future. Among the proposed procedures, NTUH decides to establish a web-based mobile electronic medication administration record (ME-MAR) system. The system, build based on the service-oriented architecture (SOA) as well as embedded the HL7/XML standard, is installed in the Mobile Nursing Carts. It also implement accompany with the advanced techniques like Asynchronous JavaScript and XML (Ajax) or Web services to enhance the system usability. According to researches, it indicates that medication errors are highly proportion to total medical faults. Therefore, we expect the ME-MAR system can reduce medication errors. In addition, we evaluate ME-MAR can assist nurses or healthcare practitioners to administer, manage medication properly. This successful experience of developing the NTUH ME-MAR system can be easily applied to other related system. Meanwhile, the SOA architecture of the system can also be seamless integrated to NTUH or other HIS system.

Reverse engineering relational databases to identify and specify basic Web services with respect to service oriented computing

Service-oriented computing (SOC) is the computing paradigm that utilizes services as a fundamental building block. Services are self-describing, open components intended to support composition of distributed applications. Currently, Web services provide a standard-based realization of SOC due to: (1) the machine-readable format (XML) of their functional and nonfunctional specifications, and (2) their messaging protocols built on top of the Internet. However, how to methodologically identify, specify, design, deploy and manage a sound and complete set of Web services to move to a service-oriented architecture (SOA) is still an issue. This paper describes a process for reverse engineering relational database applications architecture into SOA architecture, where SQL statements are insulated from the applications, factored, implemented, and registered as Web services to be discovered, selected, and reused in composing e-business solutions. The process is based on two types of design patterns: schema transformation pattern and CRUD operations pattern. First, the schema transformation pattern allows an identification of the services. Then the CRUD operations pattern allows a specification of the abstract part of the identified services, namely their port types. This process is implemented as a CASE tool, which assists analysts specifying services that implement common, reusable, basic business logic and data manipulation.

8.3.2 System Engineering Issues in the Transformation to Service Oriented Architecture

AbstractThe major problem facing enterprises today is the system engineering of large scale multi‐enterprise “systems of systems“. These initiatives integrate dozens of legacy applications into a “system of pre‐existing systems” that solves a new unexpected problem. A new paradigm called the Service Oriented Architecture (SOA) has been developed in hopes of managing the complexity and adaptability needed. By creating a macro system from loosely coupled modular components, SOA is a solution for the major roadblocks of large‐scale enterprise change: inflexible technology, cross‐organization initiatives, outdated strategic planning, and organizational inertia.However, transitioning to an SOA is a difficult task. Since these projects involve little new software development, the system engineering organization takes the central role. These complex transitions involve uncoupling pre‐existing systems, creating modular components, and loosely re‐coupling these components via common standards. Current widely used enterprise architecture models deal well with static state architectures, but are very limited in the description of transitions between architectures.This paper presents an overview of the issues facing systems engineers when transforming traditional enterprise architecture to a Service Oriented Architecture. The issues are collected together in a strategic issues framework which can be used to guide transformation planning and execution. The framework encompasses the seven transformation issues: a suitable business model, IT governance, enterprise SOA architecture, portfolio investment, risk management, change management, and technology management.