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The Global ETD Search service is a free service for researchers
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Showing 11 to 15 of 15 (0.036 seconds)Spelling suggestions: "subject:"domändriven design"" "subject:"domain.drivers design""
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Comparing Monolithic and Event-Driven Architecture when Designing Large-scale Systems / Jämföra monolitisk och event-driven arkitektur vid design av storskaliga systemEder, Felix January 2021 (has links)
The way the structure of systems and programs are designed is very important. When working with smaller groups of systems, the chosen architecture does not affect the performance and efficiency greatly, but as these systems increase in size and complexity, the choice of architecture becomes a very important one. Problems that can arise when the complexity of software scales up are waiting for data accesses, long sequential executions and potential loss of data. There is no single, optimal software architecture, as there are countless different ways to design programs, but it is interesting to look at which architectures perform the best in terms of execution time when handling multiple bigger systems and large amounts of data. In this thesis, a case called "The Income Deduction" will be implemented in a monolithic and an event-driven architectural style and then be put through three different scenarios. The monolithic architecture was chosen due to its simplicity and popularity when constructing simpler programs and systems, while the event-driven architecture was chosen due to its theoretical benefits of removing sequential communicating between systems and thus reduce the time systems spend waiting for each other to respond. The main research question to answer is what the main benefits and drawbacks are when building larger systems with an event-driven architectural style. Additional research questions include how the architecture affects the organisation’s efficiency and cooperation between different teams, as well as how the security of data is handled. The two implementations where put through three different scenarios within the case, measuring execution time, number of HTTP requests sent, database accesses and events emitted. The results show that the event-driven architecture performed 9.4% slower in the first scenario and 0.5% slower in the second scenario. In the third scenario the event-driven architecture performed 49.0% faster than the monolithic implementation, finishing the scenario in less than half the amount of time. The monolithic implementation generally performed well in the simpler scenarios 1 and 2, where the systems had fewer integrations to each other. In these cases it is the preferred solution since it is easier to design and implement. The event-driven solution did perform much better in the more complex scenario 3, where a lot of systems and integrations were involved, since it could remove certain connections between systems. Lastly, this thesis also discusses the sustainability and ethics of the study, as well as the limitations of the research and potential future work. / Strukturen som system och program designas efter är väldigt viktigt. När en arbetar med mindre grupper av system så kommer den valda arkitekturen inte att påverka prestandan mycket. Men när dessa system växter i storlek och komplexitet så kommer valet av arkitektur vara väldigt viktigt. Problem som kan uppstå när mjukvarukomplexiteten ökar är väntandet på dataaccesser, långa sekventiella exekveringar och potentiell förlust av data. Det finns ingen optimal mjukvaruarkitektur, det finns oräkneligt många sätt att designa program. Det är intressant att kolla på vilka arkitekturer som preseterar bäst sätt till exekveringstid när en hanterar ett flertal större system och stora mängder data. I den här avhandlingen kommer ett fall, kallat "Ingångsavdraget", att implementeras i en monolitisk och en event-driven arkitekturell stil och sedan köras igenom tre olika scenarion. Den monolitiska arkitekturen var vald på grund av dess enkelhet och populäritet vid utveckling av enklar program och system. Den event-drivna arkitekturen valdes på grund av vissa teoretiska fördelar, så som att kunna undvika sekventiell kommunikation mellan systemen och därmed reducera tiden som systemen väntar på svar från varandra. Den huvudsakliga forskningsfrågan som ska besvaras är vad de största fördelarna och nackdelarna är när man bygger större system med en event-driven arkitekturell stil. Andra forskningsfrågor inkludera hur arkitekturen påverkar effektiviteten hos en organisation och samarbetet mellan olika team, samt hur datasäkerheten hanteras. De två implementationerna sattes igång tre olika scenarion inom fallet, där exekveringstid, antal HTTP-anrop skickade, databasaccesser och event skickad mättes. Resultaten visar att den event-drivna arkitekturen presterade 9.4% långsamare i det första scenariot och 0.5% långsamare i det andra scenariot. I det tredje scenariot presterade den event-drivna lösningen 49.0% snabbare än den monolitiska lösningen och avslutade därmed scenariot under hälften av tiden. Den monolitiska implementationen presterade generellt väl under de simplare scenarion 1 och 2, där systemen hade färre integrationer till varandra. I dessa fallen så är den den föredragna lösningen eftersom det är lättare att designa och implementera. Den event-drivna lösningen presterade mycket bättre i det mer komplexa scenario 3, där många system och integrationer var inblandade, eftersom den kunde ta bort vissa kopplingar mellan system. Slutligen så diskuteras även hållbarhet och etik i studien, samt begränsningarna av forskningen och potentiellt framtida arbete.
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Integração da abordagem Domain-Driven Design e de técnica Behaviour-Driven Development no desenvolvimento de aplicações webSantos, Eloisa Cristina Silva 01 June 2015 (has links)
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Previous issue date: 2015-06-01 / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / The agile methods of software development have emerged as an alternative to
traditional approaches, to spend less time on documentation and more time with solving
problems interactively and iteratively. In this context, the development approach Domain
Driven Design (DDD) is a way of developing software in which the application design
process is guided by a domain model. In conjunction with the DDD development
approach, the existence of tests during the implementation of an application is required to
ensure quality. Objective: This work aims to study the agile development approach
Domain-Driven Design (DDD) and the software test techniques Test-Driven Development
(TDD) and Behaviour-Driven Development (BDD). A case study was built to exemplify the
integration of each test technique with DDD. The case study was developed with the
support of the Apache Isis framework, from a well-defined domain model. Methodology:
Based on the literature, the concepts of the DDD development approach and of the TDD
and BDD test techniques, that provided the comparison between the techniques, and
later, the implementation to illustrate this research, were extracted. The Apache Isis
framework was used in this work because it allows develop DDD applications quickly.
During the development of the sample system of this work, the possibility of creating an
automatic generator tests and scenarios for BDD was noted. Results: A case study was
created using the concepts of DDD and tests, with TDD and BDD. Furthermore, a
prototype of tests and scenarios generator for software projects that use DDD, through
the Apache Isis framework and tests using BDD, was developed. Conclusions: The
combination of test techniques mentioned with DDD aim to boosting the development of
applications, since DDD is not associate with any test technique. Writing scenarios with
ubiquitous language is a great advantage to integrate DDD and BDD, because it allows a
clear understanding for all involved in the project. Moreover, the creation of automatic
generator speeds up the testing phase, and can detect errors that might go unnoticed or
only be found as the project evolved. / Os métodos ágeis de desenvolvimento de software surgiram como uma
alternativa às abordagens tradicionais, com o intuito de despender menos tempo com
documentação e mais com a resolução de problemas de forma interativa e iterativa.
Neste contexto, a abordagem de desenvolvimento Domain-Driven Design (DDD)
representa uma forma de desenvolver software em que o processo de design de uma
aplicação é guiado pelo modelo de domínio. Em conjunto com a abordagem de
desenvolvimento DDD, a existência de testes durante a implementação de uma
aplicação é necessária para garantir a qualidade. Objetivo: Este trabalho teve como
objetivo o estudo da abordagem ágil de desenvolvimento Domain-Driven Design (DDD) e
as técnicas de teste de software Test-Driven Development (TDD) e Behaviour-Driven
Development (BDD). Um estudo de caso foi construído para exemplificar a integração de
cada técnica de teste com o DDD. O estudo de caso foi desenvolvido por meio do
framework Apache Isis, a partir de um modelo de domínio bem definido. Metodologia:
Com base na literatura foram extraídos os conceitos da abordagem de desenvolvimento
DDD e das técnicas de testes TDD e BDD que proporcionaram a comparação entre as
técnicas e posterior implementação para exemplificar a pesquisa. O framework Apache
Isis foi utilizado neste trabalho porque permite desenvolver aplicações com DDD de
forma rápida. No decorrer do desenvolvimento do sistema exemplo deste trabalho,
notou-se a possibilidade da criação de um gerador automático de testes e cenários para
BDD. Resultados: Foi criado um estudo de caso empregando os conceitos de DDD e
testes com o TDD e com o BDD. Além disso, foi desenvolvido um protótipo de gerador
de testes e cenários para projetos de software que empregam DDD, por meio do
framework Apache Isis e testes utilizando BDD. Conclusões: A junção das técnicas de
testes citadas com o DDD visa potencializar o desenvolvimento de aplicações, uma vez
que o DDD não aborda nenhuma técnica de teste. A escrita de cenários em linguagem
ubíqua é um grande diferencial ao integrar DDD e BDD, pois permite um claro
entendimento a todos os envolvidos do projeto. Ademais, a criação do gerador
automático agiliza a fase de testes, sendo possível detectar erros que poderiam não ser
notados ou apenas serem encontrados com a evolução do projeto.
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Efficient and Responsible Incident Management : Designing a Service Desk Web Application with Integrated Major Incident Reporting Functionality for Swedish Government AgenciesMichel, David January 2021 (has links)
In this 7.5 HEC B-level thesis in Computer Science, a service desk web application is designed for Swedish government agencies with integrated major incident reporting functionality to the Swedish Civil Contingencies Agency (Myndigheten för samhällsskydd och beredskap). There are several advantages to integrating the major incident reporting procedure into the regular incident management process - information would no longer have to be duplicated, and the problems of untraceability and under-reporting could additionally be solved. The proof-of-concept application was designed and partially developed with ASP.NET Core (MVC) web framework and Bootstrap front-end framework. The user interface was evaluated with heuristic evaluation by the author and two master’s students in Information Security at Luleå Technical University. Although the proposed software and interface design may have left room for improvement, it did highlight the societal need for an efficient and responsible incident management process and the general benefits of integration.
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RefStratERP – A Refactoring Strategy for ERP SystemsPetkovic, Nikola January 2017 (has links)
Enterprise Resource Planning (ERP) systems are used to integrate all functions of an enterprise. They often evolve from a smaller monolithic object-oriented application, covering one functional area and organically grow over time in features and size until all functional areas are covered. Once they reach certain size, unrestricted dependencies among numerous classes increase complexity of the system and make it harder for development team to create new features and maintain code stability. This creates problems to further evolution of the ERP system and poses a risk to economic consequences for company developing it. ERP refactoring strategy, together with process of its creation, is presented in this thesis. It can be used with ERP systems, having architectural issues, with a purpose to improve quality of system’s architecture and thus prolong its lifecycle. The goal of modularizing monolithic system it pursued with intention to reduce complexity and make it easier to reason about the system. This architecture-level refactoring strategy is created for one specific medium-sized ERP system through iterative trial-and-error explorative approach. This thesis is carried out at the main development site for this ERP system by project team consisting of employees working on its development. The result shows the RefStratERP, an innovative refactoring strategy consisting of target architecture, refactoring process to reach it, refactoring principles and refactoring limitations. Contrary to initial expectation, arranging domain modules (modules containing business logic) in directed acyclic graph (DAG) is, in general, not feasible without sacrificing internal module cohesion of business logic. Accidental unidirectional dependency between two domain modules is at risk of becoming bidirectional under changing business requirements. On the other hand, non-domain modules (modules without business logic) could be completely separated from domain modules in a way that domain modules depend on non-domain modules. This comes from underlying nature of business domain and the fact that functional areas of an enterprise are interdependent. / Enterprise Resource Planning-system (ERP) används för att integrera alla funktioner inom ett företag. Oftast utvecklas dem från en mindre monolitisk objektorienterad applikation som täcker ett funktionellt område och växer organiskt över tiden i funktioner och storlek tills alla funktionella områden är täckta. När dem når en viss storlek ökar komplexiteten i systemet vilket gör det svårare fär utvecklingsteamet att skapa nya funktioner och hålla kodstabilitet. Detta skapar problem för fortsatt utveckling av ERP-systemet och utgör en risk för ekonomiska konsekvenser för utvecklingsföretaget. ERP refactoringstrategin, tillsammans med processen med att skapa den, presenteras i denna avhandling. Den kan användas med ERP-system, med arkitektoniska problem, med syfte att förbättra kvaliteten hos systemets arkitektur och därigenom förlänga dess livscykel. Målet att modularisera monolitiska system strävas efter i syfte att minska komplexiteten och göra det lättare att resonera kring systemet. En refaktorstrategi på arkitektnivå skapas för ett specifikt medelstort ERP-system genom en iterativ och försök-och-mistag-explorativ metod. Projektet genomfördes på ERPs huvudutvecklingsplats av ett projektteam bestående av anställda inom ERP utveckling. Resultatet visar RefStratERP, en innovativ refaktorstrategi som består av målarkitektur, refactoringprocess för att nå det, refactoringprinciper och refactoringbegränsningar. I motsats till inledande förväntningar är det i allmänhet inte möjligt att ordna domänmoduler (moduler som innehåller affärslogik) i en riktad acyklisk graf (DAG) utan att påverka interna modulsammanhang (cohesion) i affärslogiken. Oavsiktlig enriktad beroende mellan två domänmoduler riskerar att bli dubbelriktad under förändrade affärsbehov. Å andra sidan kan icke-domänmoduler (moduler utan affärslogik) helt separeras från domänmoduler så att domänmoduler beror på icke-domänmoduler. Detta kommer från underliggande egenskaper av affärsområden och det faktum att verksamhetsområden inom ett företag är beroende av varandra.
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Streamlining Certification Management with Automation and Certification Retrieval : System development using ABP Framework, Angular, and MongoDB / Effektivisering av certifikathantering med automatisering och certifikathämtning : Systemutveckling med ABP Framework, Angular och MongoDBHassan, Nour Al Dine January 2024 (has links)
This thesis examines the certification management challenge faced by Integrity360. The decentralized approach, characterized by manual processes and disparate data sources, leads to inefficient tracking of certification status and study progress. The main objective of this project was to construct a system that automates data retrieval, ensures a complete audit, and increases security and privacy. Leveraging the ASP.NET Boilerplate (ABP) framework, Angular, and MongoDB, an efficient and scalable system was designed, developed, and built based on DDD (domain-driven design) principles for a modular and maintainable architecture. The implemented system automates data retrieval from the Credly API, tracks exam information, manages exam vouchers, and implements a credible authentication system with role-based access control. With the time limitations behind the full-scale implementation of all the planned features, such as a dashboard with aggregated charts and automatic report generation, the platform significantly increases the efficiency and precision of employee certification management. Future work will include these advanced functionalities and integrations with external platforms to improve the system and increase its impact on operations in Integrity360.
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