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2021 ◽  
Vol 4 (3) ◽  
pp. 153-176
Author(s):  
Yongtak Park ◽  
Doyoung Kim

This study designs a reference model of the Defense REST API server based on the representational state transfer (REST) architecture style to present the most efficient, stable, and sustainable technical criteria for real-time service integration of defense information systems in Korea. The purpose of this component is to provide evidence to be stipulated as part of the Korean Defense Ministry's instructions and regulations, such as the Defense Interoperability Management Directive and the Interoperability Guide, and to support the development of the National Defense Interworking Technology and Interoperability. As the defense information system was subdivided and developed by the army, navy, air force, or business functions, interworking between information systems has become one of the most important factors. However, despite the need for advanced service integration and interworking, various interconnection service modules based on enterprise application integration (EAI), EAI hubs, and spokes were developed at a level that met local requirements (simple data transmission) without specific criteria for each network or information system. As a result, most of the interconnection modules currently in operation suffer from the absence of a technical spectrum, such as not meeting the military's demands for real-time interconnection and service integration, which increases with time. Therefore, this study seeks to identify the above problems by integrating the defense information system into one service and presenting a reference model of the defense REST API server to meet various real-time interworking requirements, analyze the technical basis, and pursue a model that fits military reality.


2021 ◽  
Vol 1 (4) ◽  
pp. 85-94
Author(s):  
Ліпич Л.Г. ◽  
Хілуха О.А. ◽  
Кушнір М.А.

Актуальність даної теми безпосередньо пов'язана з необхідністю підвищення рівня конкурентоспроможності українських підприємств, який у порівнянні з іноземними все ще залишається низьким. Мета статті - проаналізувати сучасні наукові розробки в області систем підтримки прийняття управлінських рішень на основі аналізу їх еволюційного розвитку. Встановлено, що розвиток ІТ - систем, які підтримують менеджмент, розпочався у 1950-1960-х роках. Найдавніші ІТ - системи називалися трансакційними або системами для обробки даних. Перші системи були простими: використовували лічильні та аналітичні машин. Вони базувалися на масових операціях, які супроводжувалися значними витратами та не високою надійністю. Ці системи використовувалися для розрахунків заробітної плати, управління матеріалами, виставлення рахунків, обліку, контролю за дебіторською та кредиторською заборгованістю, обліку робочого часу та його ефективності, а також обліку витрат виробництва. Злам 20-го та 21-го століть - це період динамічних змін у розвитку ІТ - систем, що підтримують управління, головним чином завдяки мережевим системам, корпоративним інтрамережам та системам управління знаннями. Обґрунтовано, що системи Business In-Intelligence (BI) є кульмінацією еволюції змін у сфері систем підтримки прийняття рішень та системної експертизи. Вони формують рішення що ґрунтуються на: статистиці та економетрії, операційних дослідженнях та штучному інтелекті. Генезис ІТ-систем дозволив визначити етапи розвитку інтегрованих систем управління, що розвивалися паралельно вищезгаданим поколінням систем та направлені на підтримку реалізації функцій управління. Спочатку це були системи планування вимог до матеріалів (ang. Material Requirements Planning, MRP I), створені в 1960 -х роках на основі моделі управління складськими запасами. (для виробничих підприємств), потім модель закритого циклу MRP (ang. Closed-Loop MRP) та системи планування виробничих ресурсів (ang. Manufacturing Resources Planning, MRP II). Іншою версією цих систем є системи планування ресурсів підприємства (ang. Enterprise Resources Planning, ERP), створені в 1990-х роках. Змінені функціональні наповнення цих систем призвели до появи таких версій, як ERP II, EERP (Extended ERP), @ERP, EAS (Enterprise Application Suite), eERP, IERP (Intelligent ERP ERP), ERP +, ERP III і характеризуються як нове покоління інтегрованих систем - ERP IV. Доведено, що поява нових версій систем є результатом зміни умов ведення бізнесу та можливостей, створених розвитком ІКТ.


2021 ◽  
Vol 2108 (1) ◽  
pp. 012049
Author(s):  
WenSheng Tang ◽  
JinZhi Wang ◽  
Tao Fan

Abstract With the rapid development of information technology and the growing scale of enterprise development, more and more enterprise application systems appear due to business scenarios, requiring the system to execute the specified business operations at the planned time, which is the demand of “timed tasks”. The rapid growth of business volume makes the number of timed tasks also increase massively, and the importance of timed task application scenarios requires more and more strict guarantee of reliable triggering of tasks. In this paper, to address these problems, we design and implement a distributed system providing timed task scheduling service based on Quartz, an open source lightweight job scheduling framework, and realize business modules such as timed task control service, trigger execution, lock grabbing trigger, unified configuration management, task load balancing and log management. The system has been tested and put into operation, and has completed the requirements well and achieved the design goals.


Author(s):  
Daniela L. Freire ◽  
Rafael Z. Frantz ◽  
Fabricia Roos-Frantz ◽  
Vitor Basto-Fernandes

2021 ◽  
Author(s):  
Siva Sankara Rao Kotha ◽  
Gopal T V

Abstract Over the years, the number of applications supporting enterprise business pro- cesses has increased. The challenge of integrating diverse systems is one of the many rea- sons why many organizations fail to achieve greater automation. To overcome this obstacle, they are turning to Enterprise Application Integration (EAI). Enterprise Application Integra- tion is a process that enables the integration of different applications. This allows the users to easily modify the functionality, share the information among the various applications and reusing the methods. The paper presents a formal method that includes the various levels of EAI. It highlights the various formal methods that can be used to achieve EAI’s seamless interoperation. It also supports the concurrent and dynamic system. This paper also proposes a new architecture for EAI that will help them achieve their goals. There are many formal methods for programming languages in software engineering, but most of them are not ad- equate for the development of complex systems. The author proposes a new methodology based on Petri net which is a graphical representation of semantics.


Author(s):  
Kingston Xerxes Theophilus Lamola ◽  

The adoption of enterprise application architecture (EAA) for supply chain management (SCM) in small and medium enterprises (SMEs) was influenced by the owner’s physiognomies and incitements (OPIs) on a routine basis. The study employs a quantitative approach based on a linear regression model, which uses diagnosis tests “Cronbach's Alpha, normal distribution, and Kolmogorov-Smirnov test” that makes descriptive statistics possible on Pearson correlations, analysis of variance (ANOVA), Pearson's Coefficients, and linear regression. The study examines whether OPIs affect the adoption of EAA for SCM in SMEs within Capricorn District Municipality. The paper exploits the original data set of 310 SMEs, targeting predominantly both SMEs’ owners and managers to run linear regression models with the dependent variable “actual adoption of EAA” and independent variable “OPIs”. A novel piece of authenticity for the models is the incorporation of OPIs within the SCM activities and whether there were any, collaborative influences affecting the adoption of EAA. The findings have a bearing on SMEs’ SCM growth strategies, directed towards the technology acceptance model.


Author(s):  
Bintang Oktorianto ◽  
Moh A. Amin Soetomo ◽  
Charles Lim

2021 ◽  
Vol 16 (11) ◽  
pp. 1
Author(s):  
Md Shahnur Azad Chowdhury ◽  
Mohammad Toufiqur Rahman ◽  
A. M. Shahabuddin ◽  
Md Rizwan Hassan ◽  
Mohammad Shyfur Rahman Chowdhury

An enterprise resource planning (ERP) project is a sizable enterprise application either in the business and engineering perspective. It creates huge alterations and frequently entails calling into question several traditional roles within the business, for which individuals are rarely well ready. It frequently involves the execution of numerous new approaches and their integration with existing programs and frequently reflects one of the bigger IT jobs -- one of the highly crucial ones in many businesses, cooperation between industry and IT extends into international cooperation between many small business units and many entities of their IT division. The achievement of this undertaking will count on the caliber of the cooperation. Before beginning such a difficult endeavor, certain conditions have to be ensured. The business has to see to adulthood in ERP and also the management and technical capacities of their IT division and the capability of the business and IT to work together. Without these requirements, companies wouldn't have the ability to lead and get different stages of an ERP project. This preparation could require a few educational and communication efforts which can be essential for success. This study has been undertaken to address the viability of installing ERP in any enterprise and its benefits and challenges in Bangladesh. ERPs are highly technical issues with numerous benefits. It requires a lot of preconditions to be installed. By reviewing the literature and going through several recent research, a concept is tried to be developed here in this study. Idea about current status of ERP practices in Bangladesh has been generated from various circulars and reports produced by the companies. The study found that productivity and profits are increased by implementing ERP in the local enterprises but a lot of challenges are to be addressed. The infrastructure of IT and power supply should be ensured to gain optimum advantages. The employees should be well trained to run the system successfully.


2021 ◽  
Vol 4 (1) ◽  
pp. 168-180
Author(s):  
PO Obilikwu ◽  
VS Terwase

Web services provide application to application integration across different platforms. However, the consumption of web services generates request traffic that must be attended to by an instance of the web server without fail. To guarantee dependability of the web service, the instances of the web service are replicated as a way of scaling the web service. The Replication Oriented Architecture (ROA) has been designed and implemented using the Java Enterprise application development platform and interesting results have been obtained. Improvements in the PHP scripting language have made it a popular programming language for web and enterprise application development. In this paper, an implementation of the ROA architecture using PHP is done. The implementation is simulated on the Apache Jmeter and results compared to the results obtained in the Java implementation. The results show that both application development platforms achieve web service scalability as a quality of service (QOS) expected of a web service. In specific terms, 50.9% at 95.0% confidence level improvement in response time was achieved when PHP is used which compares favorably with 22.5% improvement at 95.0% confidence level achieved on the Java platform.


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