Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 42 for “"ORIENTED SYSTEMS"”.
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Fault Management For Service-Oriented Systems
<p>Service Oriented Architectures (SOAs) enable the automatic creation of business applications from independently developed and deployed Web services. As Web services are inherently unreliable,</p> <p>how to deliver reliable Web services composition over unreliable Web services is a significant …
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Automatic recovery for request oriented systems
… to ensuring highly reliable and available systems. Operating systems have privileged access to all aspects of system operation, thus a fault related to them is able to affect the entire system. Existing approaches to operating system recovery either do not protect the entire system or …
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Programming language design for service-oriented systems
Designing systems in a service-oriented manner, in which application features are decoupled and run as independently executing services over a network, is becoming more commonplace and popular. Service-oriented programming provides a natural way to model and manage many types of systems and allows …
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An integrated framework for ensuring runtime quality in service-oriented systems
… many challenges in realising a true service-oriented vision. The service-oriented systems which underpin modern business processes must be able to react to constantly changing environments and business requirements. The quality of a service-oriented system depends not only on the quality of …
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Architectural modelling and verification of open service-oriented systems of systems
Systems of Systems (SoS) have received a lot of attention recently. In this thesis we will focus on SoS that are built atop the techniques of Service-Oriented Architectures and thus combine the benefits and challenges of both paradigms. For this thesis we will understand SoS as ensembles of single …
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A self-learning framework for validation of runtime adaptation in service-oriented systems
Ensuring that service-oriented systems can adapt quickly and effectively to changes in service quality, business needs and their runtime environment is an increasingly important research problem. However, while considerable research has focused on developing runtime adaptation frameworks for …
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Evolution of batch-oriented COBOL systems into object-oriented systems through unified modelling language.
Throughout the world, there are many legacy systems that fulfil critical business functions but often require new functionality to comply with new business rules or require redeployment to another platform. Legacy systems vary tremendously in size, functionality, type (such as batch-oriented or …
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An Identity-Oriented Systems Engineering Framework for Complex Sociotechnical Systems: A case study of Zero Robotics
… there are many frameworks for studying complex systems, a framework with a focus on advancing social justice and an integration of technological and social considerations is missing. This work introduces the Intersectional Antiracist Technology Framework as a new tool and applies it to an …
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Structural complexity in service-oriented systems and its effects on system evolution and performance : a multi-cases study
… new architecture principles. Among them, Service-Oriented Architecture was meant to allow enterprise systems to become modular. Enhanced modularity would in turn lead to better agility. Yet the correlation between SOA adoption and improved agility performance remains to be seen. Breaking down …
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Process migration in distributed systems
… discusses process migration in message-based systems and procedure-oriented systems. The issues that we deal with are the correctness of process migration and the design of migration schemes. The design goal of the migration schemes is to maintain migration transparency.
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Object oriented modelling and simulation of manufacturing systems
This thesis investigates the object oriented approach to modelling and simulation of manufacturing systems. In particular, it addresses the problem of making the modelling and simulation process easier in order to shorten model development times. The final aim of the research is to find how object …
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Investigating the use of ensemble techniques in predicting object-oriented software maintainability
… of the maintainability of classes in object-oriented systems is a significant factor for software success; however, it is a challenging task. Although prior object-oriented software maintainability literature acknowledges the role of machine learning techniques as valuable predictors of …
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Applying software maintenance metrics in the object oriented software development life cylce
… metrics have rarely been studied in the object oriented paradigm. Very few complexity metrics have been proposed to measure object oriented systems, and the proposed ones have not been validated. This research concentrates on several object oriented software complexity metrics and the validation …
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Application and extension of design patterns in the technology enabled active learning project
… and recurring design experience in Object-Oriented systems so that developers can use it effectively. Design patterns play an important role in the design and refine process of TEAL simulations. We used several design patterns, such as Factory Method, Adapter, Iterator and Template in TEAL. …
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Compression and query execution within column oriented databases
… known technique used by many database management systems ("DBMS") to increase performance[4, 5, 14]. However, not much research has been done in how compression can be used within column oriented architectures. Storing data in column increases the similarity between adjacent records, thus increase …
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CHuff: Conditional Huffman String Compression
… compression performance as compared to row-oriented systems. For common string data, dictionary encoding is a light-weight compression scheme that replaces string tokens with fixed-size integers. In performing dictionary compression on a given column, database systems initially build a table …
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Towards implementing group membership in dynamic networks : a performance evaluation study
… (GM) serves as the foundation of many group-oriented systems; its fundamental role in applications such as reliable group multicast, group key management, data replication, and distributed collaboration, makes optimization of its efficiency important. The impact of GM's performance is …
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A circuit model BOSS simulation of nonlinear effects in long distance fiber optic systems
… distance of fiber optic communication systems. By designing a circuit that can model this effect and simulating it using the Block Oriented Systems Simulator (BOSS), we can study the pulse distortion and broadening that may occur. The nonlinearity considered here is self-phase …
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The Application Of Object-oriented Techniques To Preliminary Design Problems
… the potential for knowledge-based, object-oriented systems to assist in the area. This thesis explores the issues that arise when object-oriented techniques arc used to develop knowledge-based software. lt reviews certain basic principles of structural design, methods of representing …
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Ensuring Service Level Agreements for Composite Services by Means of Request Scheduling
Building distributed systems according to the Service-Oriented Architecture (SOA) allows simplifying the integration process, reducing development costs and increasing scalability, interoperability and openness. SOA endorses the reusability of existing services and aggregating them into new service …
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