Process algebra approach to parallel DBMS performance modelling

Abstract unavailable please refer to PD

Modelling parallel database management systems for performance prediction

Abstract unavailable please refer to PD

Designing object-oriented interfaces for medical data repositories

Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.Includes bibliographical references (leaves 113-116).by Patrick J. McCormick.S.B.and M.Eng

Design and implementation data flow analysis of jobs in IBM DataStage for Manta project

Cílem této práce je návrh a implementace funkčního prototypu modulu, provádějícího syntaktickou a sémantickou analýzu úloh v IBM InfoSphere DataStage. Modul se používá pro analýzu datových toků a generaci grafu, který reprezentuje datove toky. Návrh a implementace podporují bezproblémové připojení modulu k projektu Manta. Práce obsahuje důkladnou analýzu nástroje IBM InfoSphere DataStage, návrhovou dokumentaci, implementovaný prototyp modulu a také testy, které zajišťují funkcionalitu modulu.This work aims to design and implement a functional module prototype that performs syntactic and semantic analysis of tasks in IBM InfoSphere DataStage. The module provides data flow analysis and generation of the graph, which represents data flows. Design and implementation support the trouble-free connection of the module to the Manta project. The work contains an in-depth analysis of the IBM InfoSphere DataStage tool, design documentation, implemented the module prototype and tests, which ensures module functionality

Design of a performance evaluation tool for multimedia databases with special reference to Oracle

Increased production and use of multimedia data has led to the development of a more advanced Database Management System (DBMS), like an Object Relational Database Management System (ORDBMS). These advanced databases are necessitated by the complexity in structure and the functionality required by multimedia data. Unfortunately, no suitable benchmarks exist with which to test the performance of databases when handling multimedia data. This thesis describes the design of a benchmark to measure the performance of basic functionality found in multimedia databases. The benchmark, called MORD (Multimedia Object Relational Databases), targets Oracle, a well known commercial Object Relational Database Management System (ORDBMS) that can handle multimedia data. Although MORD targets Oracle, it can easily be applied to other Multimedia Database Management System (MMDBMS) as a result of a design that stressed its portability, and simplicity. MORD consists of a database schema, test data, and code to simulate representative queries on multimedia databases. A number of experiments are described that validate MORD and ensure its correct design and that its objectives are met. A by-product of these experiments is an initial understanding of the performance of multimedia databases. The experiments show that with multimedia data the buffer cache should be at least large enough to hold the largest dataset, a bigger block size improves the performance, and turning off logging and caching for bulk loading improves the performance. MORD can be used to compare different ORDBMS or to assist in the configuration of a specific database

Recommendation for an interface system for product related computer data to enhance the Engineering Change Order/Preliminary Change Order function

The following document will explore product and information integration by demonstrating the potential economic, strategic, and technical benefits attainable in the Engineering Change Order/Preliminary Change Order function. Information is the foundation of today\u27s corporate enterprise. An organization\u27s success can depend on how effectively it identifies, manages and uses its information. As an organization grows or becomes more complex, the infrastructure of information becomes more complex. The management and distribution of information corporation wide becomes a key element in the strategic position of the organization in its given market

GeoYCSB: A Benchmark Framework for the Performance and Scalability Evaluation of Geospatial NoSQL Databases

The proliferation of geospatial applications has tremendously increased the variety, velocity, and volume of spatial data that data stores have to manage. Traditional relational databases reveal limitations in handling such big geospatial data, mainly due to their rigid schema requirements and limited scalability. Numerous NoSQL databases have emerged and actively serve as alternative data stores for big spatial data. This study presents a framework, called GeoYCSB, developed for benchmarking NoSQL databases with geospatial workloads. To develop GeoYCSB, we extend YCSB, a de facto benchmark framework for NoSQL systems, by integrating into its design architecture the new components necessary to support geospatial workloads. GeoYCSB supports both microbenchmarks and macrobenchmarks and facilitates the use of real datasets in both. It is extensible to evaluate any NoSQL database, provided they support spatial queries, using geospatial workloads performed on datasets of any geometric complexity. We use GeoYCSB to benchmark two leading document stores, MongoDB and Couchbase, and present the experimental results and analysis. Finally, we demonstrate the extensibility of GeoYCSB by including a new dataset consisting of complex geometries and using it to benchmark a system with a wide variety of geospatial queries: Apache Accumulo, a wide-column store, with the GeoMesa framework applied on top