Caching in Information Systems Based on Command Query Responsibility Segregation Design Pattern

During the process of digitalizing Croatian State Administration bodies, an appropriate information system had to be chosen. Every administration body had to decide from which software provider to purchase the software. This paper describes an information system based on the Command Query Responsibility Segregation design pattern. A Croatian software company created the chosen information system, which is constantly updated with new features. The paper describes how the design pattern was implemented and the benefits of the selected implementation. The core concept of the Command Query Responsibility Segregation design pattern, as applied in the chosen information system, is the separation of read and write commands to the database. This separation facilitates the creation of modular microservice applications. These applications, designed to better utilize modern high-load systems, enable a high number of concurrent user requests, thereby enhancing the system's overall performance. The Command Query Responsibility Segregation design pattern offers significant advantages in the context of the Croatian State Administration bodies. It enables the scalability and customization of the information system to meet the unique needs of customers and their work environments, thereby enhancing the efficiency and effectiveness of their operations.

PurposeThis paper seeks to understand how strategic information systems (IS) alignment takes place in small and medium‐sized enterprises (SMEs).Design/methodology/approachThe paper employs a qualitative and quantitative analysis of data from 27 cases.FindingsA contingent model allows re‐interpretation of earlier findings that appear to be inconsistent. First, benefit realisation depends on alignment between IS and business strategies. Second, IS investment is frequently limited to supporting operations and transactions. Third, organizations with more sophisticated IS tend to perform less successfully than those with less complex systems, the greatest alignment and highest performance are reported for systems to improve efficiency, and organizations that adopt a low‐cost approach are unlikely to use IS strategically.Research limitations/implicationsThe paper extends understanding of the contingent nature of SMEs' investment in, and use of, IS, and of the effect of market position on IS management. It provides guidelines by describing the dominant paths to alignment. The limitations are that the SME sample is not random, the scoring protocols rely on author coding, whether the research identifies cycles of alignment, alternative interpretations of path hierarchy, and if an SME's location uniquely defines its alignment path.Originality/valuePerformance is a function of the alignment between IS strategy and other business domains. However, prior research has focused on outcomes, rather than the processes by which alignment is developed. Using multiple case data, this paper investigates alignment in SMEs, explaining why different SMEs follow different paths to alignment. Four paths are identified, with the path chosen contingent on an SME's market position.

An Information System can be envisioned as a set of interdependent components that provide the intended services. The component based modeling serves as a tool for collecting requirements of an Information System in user perspective and business perspective at various stages of software development. The chapter presents a methodology for component based modeling and development of an Information System, starting from the requirements definition phase, arriving at candidate components and creation of final components and their interfaces. The methodology aims at clarifying the intricate details and usage of an Information System via business type models and use-case models. The chapter presents the interaction diagrams in order to describe interactions among objects in systems perspective, and context diagrams for reflecting upon the business domain. Finally, the chapter proposes component replacement as a methodology for system reengineering, and model-view-control framework for component refinement and evolution in order to achieve a reengineered information system that reflects upon current requirements in business domain. The reengineering techniques proposed in this chapter can be applied to legacy systems to turn them into a component-oriented reengineered system.

The paper discusses to the application of Design Pattern (DP) and encryption algorithms in Information Systems (IS) in order to protect Information Security (ISec). The paper presents attack vectors, protection approaches and the ISO standard, generalizes classification of DPs, which are used in IS to protect ISec, compares encryption algorithms. The present paper proposes an approach for the use of DPs and algorithms for encrypting and decrypting data, using the algorithm Secure Hash 256 (SHA256), as well as authentication of the SMTP (Simple Mail Transfer Protocol).

This study presents a comprehensive bibliometric and content analysis of scholarly articles exploring the intersection of information systems and marketing strategy. Leveraging the Web of Science Core Collection database, the research employed a rigorous search strategy using key terms such as “information systems” and “marketing strategy.” After initially identifying over 2,000 sources, a final dataset of 124 peer-reviewed studies from the management and business domains was meticulously selected for analysis. The study identifies seven key trends within information systems and marketing strategy, with particular focus on the evolving impact of remote work. Special attention is dedicated to authentic applications of information systems in shaping marketing strategy dynamics. The study’s novelty lies in its extensive bibliometric examination, offering fresh insights and guiding future research directions. By significantly contributing to the understanding and advancement of this field, this research underscores the complex interplay between information systems and marketing strategy in contemporary organizational contexts.

This book consists of 35 chapters presenting different theoretical and practical aspects of Intelligent Information and Database Systems. Nowadays both Intelligent and Database Systems are applied in most of the areas of human activities which necessitates further research in these areas. In this book various interesting issues related to the intelligent information models and methods as well as their advanced applications, database systems applications, data models and their analysis and digital multimedia methods and applications are presented and discussed both from the practical and theoretical points of view. The book is organized in four parts devoted to intelligent systems models and methods, intelligent systems advanced applications, database systems methods and applications and multimedia systems methods and applications. The book will be interesting forpractitioners and researchers, especially graduate and PhD students of information technology and computer science, as well more experienced academics and specialists interested in developing and verification of intelligent information, database and multimedia systems models, methods and applications. The readers of this volume are enabled to find many inspiring ideas and motivating practical examples that will help them in the current and future work.

To help universities achieve their goals, it is important to align managerial functionalities side by side with educational aspects. Universities consume University Management Information Systems (UMIS) to handle managerial aspects as they do with Learning Management Systems (LMS) to achieve learning objectives. UMIS advances LMS by decades and has reached stable and mature consistency level. LMS is the newly acquired solution in Universities; compared to UMIS, and so adopting LMSs in universities can be achieved via three different deployment approaches. First approach believes in LMS ability to replace UMIS and performing its functionalities. Second approach presents the idea of extending UMIS to include LMS functionalities. Third approach arises from the shortages of the two proposed approaches and present integration between both as the appropriate deployment approach. Service Oriented Architecture (SOA) is a design pattern that can be used as a suitable architectural solution to align UMIS and LMS. SOA can be utilized in universities to overcome some of information systems’ challenges like the integration between UMIS and LMS. This paper presents the current situation at Mansoura University; Egypt, presents integration as the most suitable solution, and evaluates three different implementation techniques: Dynamic Query, Stored Procedure, and Web services. Evaluation concludes that though SOA enhanced many different aspects of both UMIS and LMS; and consequently university overall. It is not recommended to adopt SOA via Web services as the building unit of the system, but as the interdisciplinary interface between systems.

In database and information systems, increasing attention has been focused lately on parallel and distributed database systems. The future of large database systems lies into the realm of distributed computing. The main reason for this is that distributed computing can be constructed at a low cost without the need for any specialized technology, using existing sequential computers and relatively cheap computer networks. The basic motivations for distributed databases are improved performance, increased availability, share ability, expandability, and access flexibility. Oracle9i is one of the most famous database management systems that provide distributed features. Oracle9i supports transparent distributed gains to access data from multiple databases. It also provides many other distributed features, such as transparent distributed transactions and transparent automatic two-phase commit. This paper presents a distributed registration database system using Oracle9i distributed features such as replication and fragmentation. The analysis and design steps of the distributed registration database system are shown as well as to the practical steps required for implementing the distributed database system using Oracle9i.

Chapter 8 follows the emergence of a complex and significantly opaque architecture of EU/Schengen-wide large-scale IT systems (databases) for third-country nationals. This ‘millefeuille’ of databases comprises of the Schengen Information System, Visa Information System, Eurodac, Entry/Exit System, the European Travel Information and Authorisation System, and the European Criminal Record Information System for Third-country Nationals. Chapter 8 explains how the setting up and multiple reconfiguration of the databases demonstrates the prevalence of the ‘technical’ over the ‘legal’ and the role of interoperability in further obscuring the real impact of interconnecting the different data pots on the protection of fundamental rights. It also analyses how consultation of immigration data for law enforcement purposes blurs the distinction between different policy areas in the area of freedom, security and justice, and embraces the assimilation of the different groups of third-country nationals, all of whom are considered to present a security risk. Finally, the chapter examines the significant challenges of ensuring judicial protection of third-country nationals whose personal data are unlawfully processed in different Member States, by looking into concrete examples.

RIO GRANDE VALLEY, the Robert C. Vackar College of Business and Entrepreneurship, School of Accountancy invites applications from

Design Patterns (DPs) are recognized as a tool that could be useful in solving repetitive problems that have arisen in real programming practice. The paper summarizes the combined use of DPs and the benefits of using DPs in software building, makes as a summary of Compound Design Patterns (CDP) classifications and presents an Approach to build a class of Software Systems through a Combination of DPs. The paper also presents real results from the use of the approach, namely the realization of an Information System (IS) for the purposes of Maritime Transport.

Enterprise information systems in agriculture and environment are becoming more complex and difficult to design and implement. This paper aims to show our vision on using model-based approaches to design complex and flexible agricultural and environmental information systems. At the center of this modeling approach is the Unified Modeling Language that facilitates expressing visually concepts of a problem domain and their relationships. UML has a core of notations that are generic and that can be used to model problems in any domain but can be extended to create profiles in order to take into consideration modeling concerns in a particular problem domain. UML profiles are created to use UML in designing spatial systems, ontologies, model driven architecture-based systems and Web-based systems and a recent profile makes it possible to use UML for business modeling purposes. UML is used to present design patterns; their use is crucial in designing complex and flexible information systems. Recently, UML is enriched with Object Constraint Language that is used to express constraints on modeling artifacts. The paper presents the state of the art in modeling agricultural and environmental systems and provides discussions for future directions.

Актуальність. У сучасних умовах стрімкого розвитку цифрових технологій та зростання кіберзагроз захист конфіденційної інформації під час її зберігання та передачі є одним із ключових пріоритетів у проєктуванні інформаційних систем. Надійна архітектура таких систем забезпечує стійкість до атак, цілісність даних і контроль доступу. Об'єкт дослідження: архітектурні рішення для побудови програмного забезпечення захищеної системи зберігання та передачі конфіденційних даних. Мета статті: дослідження, проєктування та розробка архітектурних компонентів безпечної інформаційної системи, здатної забезпечити збереження конфіденційності даних у процесі передачі та зберігання. Результати дослідження. У статті представлено аналіз сучасних підходів до побудови захищених інформаційних систем, обґрунтовано вибір архітектурної моделі та програмних засобів. Розроблено прототип системи. Проведено тестування на відповідність вимогам захисту та продуктивності. Висновки. Запропоноване архітектурне рішення продемонструвало ефективність у забезпеченні цілісності, конфіденційності та доступності даних. Результати можуть бути використані для подальшого вдосконалення інформаційних систем у галузях, де обробляється критично важлива інформація

Digitization of societies changes the way we live, work, learn, communicate, and collaborate. In the age of digital transformation IT environments with a large number of rather small structures like Internet of Things (IoT), Microservices, or mobility systems are emerging to support flexible and agile digitized products and services. Adaptable ecosystems with service-oriented enterprise architectures are the foundation for self-optimizing, resilient run-time environments and distributed information systems. The resulting business disruptions affect almost all new information processes and systems in the context of digitization. Our aim are more flexible and agile transformations of both business and information technology domains with more flexible enterprise information systems through adaptation and evolution of digital enterprise architectures. The present research paper investigates mechanisms for decision-controlled digitization architectures for Internet of Things and Microservices by evolving enterprise architecture reference models and state of the art elements for architectural engineering for micro-granular systems.

All practitioners of information system know that building an industrial-strength information system is both a long-term commitment and a long-term investment for an organization. Any surviving system should encounter many times of changes either major or minor; and these changes might induce the system serious problems and a lot of maintenance cost. According to the recent development of database reengineering, data warehousing and business reengineering, many organizations have had their information system operating for years. They are facing the problems of introducing a new database system and the re-designation of the data processing procedure. For the information system to serve effectively and efficiently as time goes by, there are two ways to improve it. Firstly, re-design the whole system by using new technology and new database models; secondly, introduce a method that will make use of the existing systems to the maximum extent while the new requirements are still satisfied, i.e. Information systems reengineering. In this paper, we propose a framework for practitioners to complete the reengineering work more smoothly. The authors have applied this framework to the system reengineering work for a manufacturer. An EIS prototype is developed, according to the new requirements of high-level managers, and the system is operating currently.