Web Services Architecture Research Articles

Construction of supply chain management information system based on networked web service composition technology

Web service composition is crucial for creating valuable services by integrating pre-existing ones. With their service-oriented architecture (SOA), which can be used for any system design, web services can increase flexibility. Fusing Web services architecture with Semantic Web services can better assist supply chain coordination in a distributive, autonomous, and ever-changing corporate environment than current information technology. Decisions must be made quickly and with enough information many systems fail to provide real-time supply chain insight. Forecasting, inventory management, and decision-making may all be impacted by poor data quality. Modifying preexisting systems according to unique organizational needs may be challenging and expensive. Hence, this paper proposes a semantic web service-based supply chain management framework (SWS-SCMF) to analyze the web services in supply chains and examine how they interact using Web Ontology Language (OWL)-S, including automated discovery, construction, and invocation. The suggested method for improving supply chain data integration uses an ontology-based multiple-agent decision support system. Different accessibility tools, data formats, management information systems, semantic web, and databases are integrated across the five interconnected levels of the system. Businesses may find the proposed approach useful for data and information sharing when dealing with complex supply chain management. The suggested SWS-SCMF is an adaptable, accurate, and effective method for bidirectional chaining composition that uses mediators to enable the automated composition of Semantic Web services. The numerical results show that our proposed method enhances the overall performance ratio by 94%, accuracy ratio by 98%, and supply chain management ratio by 91% compared to other methods.

COMPARISON OF MESSAGE PASSING SYSTEMS IN CONTEXT OF ADAPTIVE LOGGING METHOD

Computer software is an important part of technological progress. As it becomes more and more complex and sophisticated, so does the need to protect it. Apart from typical information security aspects of integrity, availability and confidentiality, the scale and complexity of modern computer systems require a high level of control and observability. The main goal of this research is to build upon the foundations laid by the general idea of an adaptive logging method and introduce the next iteration of its design in the form of an appropriate message passing system to be used to propagate required changes to corresponding implementation in an effective and performant manner. Four different message passing system models are introduced, based on different technologies such as RabbitMQ message broker, communication channels in PostgreSQL database management system, general web server architecture and Linux-based process signaling interface. For each of those an overview description and graphical model is presented. Finally, the resulting comparison is conducted, comparing aspects such as reliance on third-party software, communication medium, error surface increase and authentication related considerations. As a result, the design based on process signaling approach is determined to be the most suitable for adaptive logging method, as it does not introduce any third-party software (and as such affects error surface in a somewhat negligible manner), binds directly to an observed application, is built using low level concepts that should be present in multiple different platforms and programming languages and should be able to reuse authentication logic that is already used when accessing computational machine where observed program is executed.

DEVELOPMENT OF A WEB SERVICE FOR MONITORING IN PHARMACIES

Abstract. Nowadays, information technology is widely implemented in various spheres of life, including health care. This paper presents a web-based pharmacy monitoring service that plays an important role in improving the accessibility and convenience of health care. The article covers the development of pharmacy business processes, highlighting key performance factors such as sales performance and service levels. The web service architecture provides secure storage of medication and pricing data. The service is designed with simplicity and intuitiveness in mind, making it easy to order medications for different user groups. The analytics and reporting components provide management with the tools to make informed decisions based on sales data. The security and confidentiality of medical data is an important consideration. Web service development and maintenance requires an integrated approach, providing a reliable, convenient and secure service for medication ordering and pharmacy monitoring.
 Keywords: web service, monitoring, business processes, medication, databases, interface, architecture.

Web Server Load Balancing Mechanism with Least Connection Algorithm and Multi-Agent System

Demands for information over the Internet massively increase through the continuous expansion of website applications. Therefore, generating powerful and efficient server architecture for web servers is a must to satisfy Internet users and avoid the overloaded system. The research focuses on developing a new mechanism for load balancing to distribute incoming HTTP requests in website applications by combining the Least Connection algorithm and Multi-Agent System (LC-MAS). The proposed mechanism distributes the request based on load condition and the fewest number of active connections. The research applies virtualization technology to build servers on this proposed mechanism. The architecture is built inside a physical server with Proxmox as virtualization management and Linux Debian 7.11 as an operating system. Then, the research is tested in two scenarios (LCMAS and LC) using 500, 1,000, and 1,500 requests. The performance of this proposed mechanism is measured through the values of average response time, throughput, and error percentage. The results show that the proposed mechanism (LC-MAS) distributes the workload more equally than LC, with an average response time for 1,500 requests of 1338.8 milliseconds, 20.07% error, and 125 transactions per second. The LC-MAS makes the website application performance much better when the request increases. The LC-MAS helps in the utilization of system resources and improves system robustness.

Enabling an On-demand Access to Community Sentiments using LSTM RNNs Web Service Architecture

Analyzing community response has always played an important role in marketing and development of various products ranging from services to manufacturing. Analyzing the responses and interpreting them helps improve the quality of the product. This task is traditionally done by community managers using surveys and focus groups. One other hands-off solution would be using the technology to analyze sentiments from users’ digital interactions in various online communities. Sentiment Analysis is the use of Natural Language Processing to process text to identify and retrieve sentiments behind the textual data. Sentiment Analysis can be approached either by supervised classification where a machine learning model is trained using labeled data or lexicon-based unsupervised analysis where a sentiment dictionary is used to find the overall sentiment. The idea is to build a system which presents community sentiment results on discussion threads from reddit on demand with the end user not to concern about data processing. We propose a streamlined pipeline architecture for a web application with several closely connected components in the backend that allows users to simply send the reddit discussion thread's URL, which the backend receives and scrapes the comments using the Reddit API, creates a dataset, cleans it and performs sentiment analysis using a RNNs. We used a Long Short-Term Memory (LSTM) a variant of RNN like Bidirectional RNNs and Multi-layered RNNs are also used to get better results.

On the development of the web service quality modelling space

Most web service (WS) based systems consider the quality of service (QoS) to select an appropriate WS to run an application. Some authors have proposed QoS attributes that characterize WS at the technological layer to determine QoS. However, this is not enough to meet user needs and ensure user satisfaction at the domain layer. Consequently, there is a need to develop a deeper understanding of the user Quality of Experience (QoE) for WS. This paper proposes a QoE modelling space, which views and allows predicting QoE through QoS attributes, WS architecture layers, and stakeholder viewpoints from a particular perspective. The proposed WS quality modelling space was validated using the objective (the WS-DREAM dataset), and subjective (expert’s judgments) attributes to estimate QoS performance by ARAS and to predict QoE performance by a Fuzzy Control System (FCS). The obtained results show the strong positive linear and strong positive monotonic relationships between WS QoS performance and WS QoE performance. Therefore, the proposed WS quality modelling space is suitable for QoE performance prediction based on measurable QoS attributes.

Data Protection Software for Civil Aviation Control Flight Information System Based on FPE Algorithm

This study is aimed in order to study the data protection software of civil aviation management flight information system based on FPE algorithm. The author established the data warehouse software of the air traffic control production information statistics system. First, using the Jquery browser application framework + service-oriented Web Service architecture technology, a B/S/S multilayer data application based entirely on browser applications is established. Then, with the support of the ATC production information statistical data warehouse software and the system application framework, the system realizes a series of production data processing related to production information management, such as data collection, data editing, data review, and business data statistics. Finally, combined with the attributes of business data, we analyze and compare all kinds of production information from multiple dimensions such as time and region; it also provides users with data analysis results of curve, pie, column, and other performance situations, display mode, and report output tool. SQL statement can be implemented to add data to the database, modify the existing data in the database, delete the existing data in the database, and can be queried in a variety of ways to the data in the database, and VB provides a human-computer interaction interface for various operations.

K-Variant Architecture to Improve Security of Web Services and Applications

The K-variant is a multi-variant architecture to improve security against memory exploitation attacks. Unlike other multi-execution architectures, variants in the K-variant architecture are generated by program transformations at the source code level. Because variant generation processes can be automated, the cost of systems has significantly decreased compared to similar architectures such as N-version. Multi-execution architectures were designated to improve the security of the mission and safety-critical systems. However, to meet the high-security requirements of organizations and companies, multi-execution architectures have been utilized to enhance the security of web services and applications. The increasing number of memory-related vulnerabilities in web servers and services makes systems vulnerable to memory exploitation attacks. The K-variant architecture can provide statistical security for memory exploitation attacks by providing a diversity of critical data in memory. In this paper, the design of a K-variant architecture for web services and applications is proposed. Also, different levels of diversities in K-variant systems are discussed in the implementation of the K-variant architecture.

SHA-512 Algorithm on Json Web Token for Restful Web Service-Based Authentication

The development of technology is getting faster and continues to grow so as to create various types of technology, architecture, to new programming languages. Surely this will be a new problem because of differences in technology, programming language, and architecture that must still be able to provide interconnected sources of information. So in order for the system to remain integrated, a Web Service (WS) is needed as a bridge in integrating between systems without differentiating the platform, programming language, or architecture used. One of the Web Service architectures that is widely used is REST (REpresentational State Transfer), but there will be problems in implementing REST Web Service because it does not have security standards in the authentication process. Then an authentication method is needed, namely JSON Web Token (JWT). In implementing JWT, a hash algorithm is needed, such as SHA-512. The results of this study indicate that the use of SHA-512 on the JWT has a good speed with an average data request speed of 512.8 milliseconds (ms) when compared to the SHA-256 algorithm which has an average data request speed of 515.55 MS. Meanwhile, in terms of data size, SHA-512 produces an average data request size of 0.75 kilobytes (kb) compared to SHA-256 which has an average data request size of 0.72 kb.

Architecture of project management web services based on integration with natural language processing modules

A method for intellectualizing project management web services based on integration with natural language processing modules is proposed. The supporting of high reliability, extensibility and flexibility of the interface of such systems is a necessary condition for the providing of effective tools for developers of software systems of various profiles. It is shown that a prevalent trend in software development is to increase the portability of software in order to ensure the possibility of using the same application in different runtime environments. The advantages of using the concept of “API-first” are highlighted. The features of the “API-first” web server architecture are considered, in which all requests for web services are executed through a single web API interface, and the resource-intensive web pages formation is transferred to a separate structure on the same host or to a separate web server. The advantages of using natural language processing tools to improve the efficiency and availability of project management web services are considered. Project management web service database structure is proposed. All the natural language processing data for the conversational interface consist of user intents list, entities collections list, entities (collocations or word sets). It will be stored within each external language processing web service in the appropriate format automatically. Examples of prototype business logic with functions for the internal and external API are shown. Most of the external natural language processing service handlers are closely related to this business logic.

Implementasi Web Service Pada Sistem Informasi Geografis (SIG) Peta Sebaran Data Covid-19 Berbasis Mobile Apps

Geographical Information System is an information system based on computer work that enters, manages, manipulates and analyzes data and provides descriptions and produces geographically referenced data.By using the Geographic Information System, it is hoped that it will be easier for the people of Indonesia to find out which locations or provinces are most affected by Covid-19. The use of a geographic information system (GIS) concerning the presentation of data and information in the form of maps can be used as a tool in making a decision.Research uses web service technology to collect data and integrate services from multiple sources. The web service protocol and architecture used is (REST), with independent data exchange using the JSON format. The application (GIS) will later be tested using black box testing methods and automation testing.

Establishing a genomic database for the medicinal plants in the Brazilian Pharmacopoeia

BackgroundBrazil is exceptionally abundant in medicinal plant resources and has a rich ethnopharmacological history. Brazilian Pharmacopoeia (BP) acts as a national standard that regulates drug quality and has six published editions. Recent genomic approaches have led to a resurgence of interest in herbal drugs. The genomic data of plants has been used for pharmaceutical applications, protecting natural resources, and efficiently regulating the market. However, there are few genomic databases specifically for medicinal plants, and the establishment of a database that focuses on the herbs contained in the BP is urgently required.MethodsThe medicinal plant species included in each edition of the BP were analyzed to understand the evolution of the Brazilian herbal drugs. The data of 82 plants in the BP were collected and categorized into four sections: DNA barcodes, super-barcodes, genomes, and sequencing data. A typical web server architecture pattern was used to build the database and website. Furthermore, the cp-Gs of the Aloe genus in the database were analyzed as an illustration.ResultsA new database, the Brazilian Pharmacopoeia Genomic Database (BPGD) was constructed and is now publicly accessible. A BLAST server for species identification and sequence searching with the internal transcribed spacer 2 (ITS2), the intergenic region (psbA-trnH), and the chloroplast genome (cp-G) of Brazilian medicinal plants was also embedded in the BPGD. The database has 753 ITS2 of 76 species, 553 psbA-trnH and 190 genomes (whole genome and chloroplast genome) of 57 species. In addition, it contains 37 genome sequence data sets of 24 species and 616 transcriptome sequence data sets of 34 species and also includes 187 cp-Gs representing 57 medicinal species in the BP. Analyses of the six cp-Gs of three Aloe species identified the variable regions in the cp-Gs. These can be used to identify species and understand the intraspecific relationships.ConclusionsThis study presents the first genomic database of medicinal plants listed in the latest BP. It serves as an efficient platform to obtain and analyze genomic data, accelerate studies regarding Brazilian medicinal plants and facilitate the rational development on their market regulation.

Evaluation of SOA-Based Web Services and Microservices Architecture Using Complexity Metrics

Evaluation of SOA-Based Web Services and Microservices Architecture Using Complexity Metrics

Implementation of the Moodle e-learning platform from server selection to configuration

Through this article which concerns the implementation of the Moodle e-learning platform in a server, we will first present an example of a Web server architecture, then we propose the adopted architecture which is based on Linux containers. Afterwards, we propose a description of all the necessary tools chosen for the implementation of the platform in a Web server. Then, we propose through figures the installation of the different technological tools and the Moodle platform. Finally, we propose the configuration of our Moodle platform according to our needs.

The Fuzzy Methodology’s Digitalization of the Biological Assets Evaluation in Agricultural Enterprises in Accordance with the IFRS

The study of the assessment and reflection of biological assets in the economic processes of agricultural enterprises can be represented as a chain of phenomena in which scientists and practitioners try to study and understand the nature and essence of biological assets in various aspects. This article discusses the principles of accounting for biological assets in the agricultural enterprises’ economic life of the Republic of Tajikistan and identifies the reasons and mechanisms for their reflection based on the principles of the International Financial Reporting System (IFRS) in refraction to the specifics and national features of accounting. The author gives his own interpretation of these approaches and constructs the architecture of the information module for accounting for biological assets and the results of biotransformation, based on the web services architecture (WSA) within the framework of the development trend of these and new accounting models in connection with the transition of the world economy to a digital format. The article provides specific authors’ approaches to implementing this architecture in PHP (Hypertext Preprocessor) and also implements one of the approaches to assessing the value of biological assets, based on the theory of fuzzy sets, taking into account the risk of investment inefficiency.

Proactive and reactive context reasoning architecture for smart web services

The web of things (WoT) uses web technologies to connect embedded objects to each other and to deliver services to stakeholders. The context of these interactions (situation) is a key source of information which can be sometimes uncertain. In this paper, we focus on the development of intelligent web services. The main requirements for intelligent service are to deal with context diversity, semantic context representation and the capacity to reason with uncertain information. From this perspective, we propose a framework for intelligent services to deal with various contexts, to reactively respond to real-time situations and proactively predict future situations. For the semantic representation of context, we use PR-OWL, a probabilistic ontology based on multi-entity Bayesian networks. PR-OWL is flexible enough to represent complex and uncertain contexts. We validate our framework with an intelligent plant watering use case to show its reasoning capabilities.

Implementasi JSON Web Token Berbasis Algoritma SHA-512 untuk Otentikasi Aplikasi BatikKita

Batikkita is an android based application and web framework laravel web service architecture that is used to bring together between craftsmen and consumers of batik Trusmi and batikkita application with the e-commerce model used is business to customer. The backend system interface used is a web framework while the frontend system interface used is android. The problem that arises from the Batikkita application is that the security of users, both as sellers and consumers, is very vulnerable to being hacked, so it is very detrimental to both sellers and buyers. This study aims to implement the JSON Web Token based on the HMAC SHA-512 algorithm in the Batikkita application in order to provide a sense of security for both the seller and the buyer before entering the sales transaction page. The application development method used is Rapid Application Development because the cycle used to develop our batik application is very short so it is very helpful in this research. While the implementation of JSON Web Token with the HMAC SHA-512 algorithm in the Batikkita application is used to improve user security when logging in to the Batikkita application in the form of a token and the password used by the user is wrapped in a token given by the Batikkita application. As a comparison, the HMAC SHA-256 algorithm and the HMAC SHA-384 algorithm are used. The results obtained from testing the implementation of JSON Web Token with the SHA-512 algorithm in our batik application, for an average increase of speed between 138.8 milliseconds for SOAP and 122.7 milliseconds for REST compared to the HMAC SHA-256 algorithm and the HMAC SHA-algorithm. 384. While the required token size is greater between 2.13 kb for SOAP and 2.11 kb for REST compared to the HMAC SHA-256 algorithm and the HMAC SHA-384 algorithm.

Measuring success for a future vision: Defining impact in science gateways/virtual research environments

SummaryScholars worldwide leverage science gateways/virtual research environments (VREs) for a wide variety of research and education endeavors spanning diverse scientific fields. Evaluating the value of a given science gateway/VRE to its constituent community is critical in obtaining the financial and human resources necessary to sustain operations and increase adoption in the user community. In this article, we feature a variety of exemplar science gateways/VREs and detail how they define impact in terms of, for example, their purpose, operation principles, and size of user base. Further, the exemplars recognize that their science gateways/VREs will continuously evolve with technological advancements and standards in cloud computing platforms, web service architectures, data management tools and cybersecurity. Correspondingly, we present a number of technology advances that could be incorporated in next‐generation science gateways/VREs to enhance their scope and scale of their operations for greater success/impact. The exemplars are selected from owners of science gateways in the Science Gateways Community Institute (SGCI) clientele in the United States, and from the owners of VREs in the International Virtual Research Environment Interest Group (VRE‐IG) of the Research Data Alliance. Thus, community‐driven best practices and technology advances are compiled from diverse expert groups with an international perspective to envisage futuristic science gateway/VRE innovations.

Aplikasi Kurir Mobil Pick Up Berbasis Mutli Platform

Problem faced by goods delivery service providers today is that there are found consumers they have difficulty in finding couriers to transport large goods, thus causing consumers to have to go to the owner of a pickup car or delivery service provider, it can take a lot of time and cost. To solve the problem, there is currently no system that facilitates consumers in ordering couriers optimally. Therefore, it requires a delivery system that can order couriers only through a smartphone owned. The result that was wanted to be achieved in this study was the creation of a multiplatform based courier ordering system with a REST web service architecture that can be accessed through computer and Android platforms. With the construction of this system testing of the web service, the test results of the web service function stated that, all functions tested show valid results, this means that the entire web service function on the application, already fulfilled the design, in addition to testing against the web service, conducted also the black box trial, based on the black box test results, it is concluded that the application created, already according to the design, is proven by all the parts tested showing valid status

Review of Web Service Technologies: REST over SOAP

Recently, most of the web applications depend on the web services to solve the application integration problem. Web service is an intermediate software that allows the interaction between the applications written by different languages. Web Service is a client-server, modular, self-contained, and dynamic application that ensures the communication between the applications via the World Wide Web (WWW). The aim of this paper is to choice right kind of Web services at design stage of the project. Thus, we provide an overview of web services. Next, we clarify the architecture of web services. After that, we focus on the most popular kinds of web services, the Representational State Transfer (REST) and the Simple Object Access Protocol(SOAP) then explain APIs details. Finally, we address the performance evaluation of the previous works and explained the results as comparison between SOAP and REST. A recommendation to use RESTful web services has been concluded from experimental result.