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 41 for “"database design"”.
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Automatic physical database design : recommending materialized views
This work discusses physical database design while focusing on the problem of selecting materialized views for improving the performance of a database system. We first address the satisfiability and implication problems for mixed arithmetic constraints. The results are used to support the …
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The Applicability of Hypermedia Technology to Database Design
… to the conceptual modelling stage of the database design process. Conceptual modelling produces a representative abstraction (schema) of the data requirements of an organisation. Hypermedia is a form of information representation and management based on the principle of connecting nodes of …
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Symmetric multimodal interaction applied to database design and normalization
… an application that utilizes MIDOS in order to design and implement a normalized relational database, and then demonstrate the application's capabilities by using it to design the database for an after-action report wiki.
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Database design development : i-LINK, an integrated messaging framework
… communication channels. There are contrasting database models from which to choose when designing the IMF data model (i.e.: flat file, relational, object oriented, objected relational). However, the IMF was designed using a relational data model due to the stability it offered, the protection …
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2D Vector Map and Database design for Indoor Assisted Navigation
… we implemented a 2D Vector Map, map editor and Database design intended to provide an efficient way to convert cad files from indoor environments to a set of vectors representing hallways, doors, exits, elevators, and other entities embedded in a floor plan, and save them in a database for use …
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A conceptual database design and performance analysis of the MILSATCOM requirements database
… provided by the MILSATCOM Requirements Database (MRDB). The objective of this thesis is twofold. First, it develops a new conceptual schema for the MRDB using the Entity Relationship Model and transforms it into a relational schema for implementation. Second, it conducts a comparative …
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The semantic database model as a basis for an automated database design tool
The automatic database design system is a design aid for network database creation. It obtains a requirements specification from a user and generates a prototype database. This database is compatible with the Data Definition Language of DMS 1100, the database system on the Univac 1108 at the …
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The effect of denormalized schemas on ad-hoc query formulation: a human factors experiment in database design
… systems literature is rich with studies of database organization and its impact on machine, programmer, and administrative efficiency. Little attention, however, has been paid to the impact of database organization on end-user interactions with computer systems. This research effort …
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Performance Modelling of Database Designs using a Queueing Networks Approach. An investigation in the performance modelling and evaluation of detailed database designs using queueing network models.
Databases form the common component of many software systems, including mission critical transaction processing systems and multi-tier Internet applications. There is a large body of research in the performance of database management system components, while studies of overall database system …
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Shinobi : insert-aware partitioning and indexing techniques for skewed database workloads
… becomes increasingly skewed. Additionally, the database index update costs can be a non-trivial proportion of the overall system cost. Shinobi introduces a cost model that takes index update costs account, and proposes database design algorithms that optimally partition tables and drop indexes …
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A Computational Paradigm on Network-Based Models of Computation
… of problems in seemingly unrelated contexts in database design, pattern recognition, image processing, VLSI design, computer vision, and robot navigation. The main contribution of this work is to provide a computational paradigm which involves the unifying framework, referred to as the multiple …
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Cross-chain Trading Network Using Smart Contracts
The blockchain, a secured and distributed database design, has been introduced and launched for ten years. Since then, a significant number of cryptocurrencies and financial trading markets using digital assets have also been introduced over time. Despite the fluctuation in the exchange rate, …
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The development and implementation of a production information collection and reporting system
… production information system into a relational database application, called PICRS. The first part of the thesis introduces the reader to the background of the internship project, focusing on the importance of accurate and timely production information and the inadequacy of the old system. The …
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FPGA-based hardware acceleration for a key-value store database
… number of innovative solutions in the field of database technologies have been discovered and implemented. In software and systems design, the development and deployment of the NoSQL (Not Only SQL) database challenged yesterday's relational database and answered the demand for exceedingly higher …
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Clustering strategies for object databases
When object databases arrived on the scene some ten years ago, they provided database capabilities for previously neglected, complex applications, such as CAD, but were burdened with one inherent teething problem, poor performance. Physical database design is one tool that can provide performance …
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The design of a data model (DM) for managing durability index (DI) results for national road infrastructure
… Data modelling can be defined as the process of designing a data model (DM) for data to be stored in a database. Commonly, a DM can be designated into three main types. A conceptual DM defines what the system contains; a logical DM defines how the system should be executed regardless of the …
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EIUAS: an enterprise information update and alert system
… comparing these with the existing system database to update out-of-date data. Finally, future predictions and automatic information updates on available alert will be the last important step. Currently, there is a little research work on how to build such a system. In this thesis, I …
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Environmental information systems : the development and implementation of the Lake Rukwa Basin integrated project environmental information system (LRBIP-EIS) database, Tanzania
… environmental information system (EIS) database was developed according to the Software Development Methodology for three of the identified environmental sectors. This involved detailed user needs assessment to identify the information requirements (both spatial and textual) for each …
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Attributes sanitization in object-oriented design to improve database structure
… introduced class diagram. However, designing a good database is still a serious issue. Some of the issues are very difficult to handle such as consistency checking between system design and database design, redundancy of data, mismatch of the data structure with the user’s needs in …
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Fear and desire in systems design : negotiating database usefulness
Databases are ubiquitous. They are used for a host of functions including coordination, decision making, and memory archiving. Despite their importance and ubiquity, databases continue to frustrate us, often departing from the goals originally set for them. If databases are such essential …
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