Master Degree / Yüksek Lisans Tezleri

Permanent URI for this collectionhttps://hdl.handle.net/11147/3008

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Department: search.filters.department.Thesis (Master)--İzmir Institute of Technology, Computer EngineeringSubject: search.filters.subject.Software architecture

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Now showing 1 - 4 of 4
  • Master Thesis
    Modeling Microservice Based Applications: Model Lives Inside Code Approach
    (01. Izmir Institute of Technology, 2024) Ersoy, Eyüp Fatih; Demirörs, Onur
    In today's software development, maintaining consistent documentation is crucial for sharing and preserving team knowledge. As projects grow more complex, developers need to quickly understand and maintain code. However, keeping documentation aligned with business logic without unnecessary technical details is challenging. Traditional visualization tools like UML, sequence, and activity diagrams focus on object-oriented approaches and often require manual updates, making them less suitable for event-based systems like microservices. To address these issues, the tool Docupyt was developed using eEPC (Extended Event Process Chains) as the main modeling approach. Docupyt is designed with three key principles: ease of use, simplicity (including only necessary logic), and reactivity (representing event-based systems). eEPC notation helps analyze problems and represent changing logic during development, accommodating fast-changing requirements. It supports both high and low-level process definitions and focuses on business logic without extraneous technical details. Generated directly from code through simple commenting, this approach simplifies updating documentation as the code changes, reducing maintenance costs. Using the design science research method, Docupyt was validated in a case study, demonstrating it is user-friendly and provides adequate detail without being overly technical. Its main advantage is keeping documentation in sync with code logic, easing updates.
  • Master Thesis
    Testing Microservice Applications
    (2023) Öztürk, Özgür; Ayav, Tolga; Demirörs, Onur
    This thesis contributes to the testing processes of microservice architecture. Microservices provide a scalable, reliable and cloud-based environment that is frequently preferred in today's technology applications. It consists of small, loosely coupled, isolated applications that work in harmony. In this study, microservice application is modeled using timed automata and model checker-based testing methods are exploited to generate test cases automatically. To this end, UPPAAL model checker tool is utilized. The model of the microservice application is mutated with respect to a set of fault hypotheses and these mutant models are verified against certain properties defined by system or application specifications. The returned counterexamples from the model checker are used to constitute the test cases. The entire process is automated and experimentally run for an example application. The generated test cases are also shown to be efficiently detect the errors. The proposed testing methodology has the benefits like a faster test generation process and achieving test cases with better fault detection capability
  • Master Thesis
    A Cluster Based Communication Architecture for Distributed Applications in Mobile Ad Hoc Networks
    (Izmir Institute of Technology, 2006) Dağdeviren, Orhan; Erciyes, Kayhan
    In this thesis, we aim to design and implement three protocols on a hierarchical architecture to solve the balanced clustering, backbone formation and distributed mutual exclusion problems for mobile ad hoc network(MANET)s. Our ¯rst goal is to cluster the MANET into balanced partitions. Clustering is a widely used approach to ease implemen-tation of various problems such as routing and resource management in MANETs. We propose the Merging Clustering Algorithm(MCA) for clustering in MANETs that merges clusters to form higher level of clusters by increasing their levels. Secondly, we aim to con-struct a directed ring topology across clusterheads which were selected by MCA. Lastly, we implement the distributed mutual exclusion algorithm based on Ricart-Agrawala algo-rithm for MANETs(Mobile RA). Each cluster is represented by a coordinator node on the ring which implements distributed mutual exclusion algorithm on behalf of any member in the cluster it represents. We show the operations of the algorithms, analyze their time and message complexities and provide results in the simulation environment of ns2.
  • Master Thesis
    Development of a Distributed Firewall Administration Tool
    (Izmir Institute of Technology, 2008) Erdoğan, Yunus; Tuğlular, Tuğkan
    Today firewalls not only guard internal computer networks but also individual personal computers against malicious and unauthorized accesses from outside. The purpose of this study is to create architecture and its corresponding application to manage distributed firewalls running on Microsoft Windows platform. Distributed Firewall Administration is about creating a management center for a network composed of the firewalls running on Microsoft Windows platform. Main important part of this work is to determine distributed firewall network topology with breadth-first search and depth-first search algorithms.The Microsoft Windows Firewall API makes it possible to programmatically manage the features of firewalls running on windows platform by allowing applications to create, enable and disable firewall exceptions. This study used the Windows Firewall API to manage the features of it. This API is only reachable using C/C++ low level programming languages.Distributed Firewall Administration Tool (DFAT) can add, modify or delete rules on the end-user firewall rule set, these rules stored on the database. This tool works on a distributed environment, there is a parent child relationship between firewalls. Parent firewalls have right to manage its child firewall.s rule set. Firewalls introduce themselves to each other with broadcast method.