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‣ Critérios de seleção de sistemas de gerenciamento de banco de dados não relacionais em organizações privadas; Selection criteria of non-relational database management systems data in private organizations

Souza, Alexandre Morais de
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 31/10/2013 Português
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Sistemas de Gerenciamento de Banco de Dados Não Relacionais (SGBDs NoSQL) são pacotes de software para gerenciamento de dados utilizando um modelo não relacional. Dado o atual contexto de crescimento na geração de dados e a necessidade que as organizações possuem em coletar grande quantidade de informações de clientes, pesquisas científicas, vendas e outras informações para análises futuras, é importante repensar a forma de se definir um SGBD adequado levando em consideração fatores econômicos, técnicos e estratégicos da organização. Esta é uma pesquisa relacionada com o estudo do novo modelo de gerenciamento de banco de dados, conhecido como NoSQL e traz como contribuição apresentar critérios de seleção para auxiliar consumidores de serviços de banco de dados, em organizações privadas, a selecionar um SGBD NoSQL. Para atender a este objetivo foi realizada revisão da literatura com levantamento bibliográfico sobre processo de seleção de software e de SGBDs, levantando critérios utilizados para este fim. Feito o levantamento bibliográfico, definiu-se o método de pesquisa como sendo a aplicação de um Painel Delphi, na modalidade ranking form. Por meio do painel foi possível determinar, após a realização de duas rodadas e participando um grupo de especialistas misto formado por gerentes...

‣ Estudo e construção de um sistema gerenciador de banco de dados dedutivo; Study and construction of a deductive database management system

Nardon, Fabiane Bizinella
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Dissertação Formato: application/pdf
Português
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Este trabalho apresenta o estudo e a construção de um Sistema Gerenciador de Bancos de Dados Dedutivos. Um Banco de Dados Dedutivo (BDD) é um Banco de Dados que, alem de sua parte tradicional, ou seja, as informações contidas nas relações básicas, que são explicitamente inseridas, possui um conjunto de regras dedutivas que permite derivar novas informações a partir das relações básicas. Neste trabalho, as deficiências da linguagem de consulta Datalog foram identificadas e, com o objetivo de obter uma linguagem que atenda melhor algumas das necessidades de aplicações do mundo real, foram propostas extensões ao Datalog, que deram origem a linguagem DEDALO. As atualizações sobre Bancos de Dados Dedutivos também foram estudadas, sendo identificados dois problemas: o primeiro se refere a necessidade de propagar modificações sobre as relações básicas para as relações derivadas materializadas; o segundo problema diz respeito as atualizações sobre as relações derivadas, que devem ser traduzidas em atualizações sobre as relações básicas, para que a atualização pretendida se tome visível na relação derivada. Para o primeiro problema, métodos de propagação foram estudados, analisados e implementados. Para o segundo...

‣ A logical approach to the management of object identifiers in non-conventional database management systems

Valêncio, Carlos Roberto; Ferrizzi, André Cid; De Almeida, Fábio Renato; Carreira, Juliano Augusto; Tronco, Mario Luiz
Fonte: Universidade Estadual Paulista Publicador: Universidade Estadual Paulista
Tipo: Conferência ou Objeto de Conferência Formato: 293-298
Português
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Non-conventional database management systems are used to achieve a better performance when dealing with complex data. One fundamental concept of these systems is object identity (OID), because each object in the database has a unique identifier that is used to access and reference it in relationships to other objects. Two approaches can be used for the implementation of OIDs: physical or logical OIDs. In order to manage complex data, was proposed the Multimedia Data Manager Kernel (NuGeM) that uses a logical technique, named Indirect Mapping. This paper proposes an improvement to the technique used by NuGeM, whose original contribution is management of OIDs with a fewer number of disc accesses and less processing, thus reducing management time from the pages and eliminating the problem with exhaustion of OIDs. Also, the technique presented here can be applied to others OODBMSs. © 2011 IEEE.

‣ A web based relational database management system for filariasis control

Murty, Upadhyayula Suryanarayana; Kumar, Duvvuri Venkata Rama Satya; Sriram, Kumaraswamy; Rao, Kadiri Madhusudhan; Bhattacharyulu, Chakravarthula Hayageeva Narasimha Venakata; Praveen, Bhoopathi; Krishna, Amirapu Radha
Fonte: Biomedical Informatics Publishing Group Publicador: Biomedical Informatics Publishing Group
Tipo: Artigo de Revista Científica
Publicado em 30/04/2005 Português
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The present study describes a RDBMS (relational database management system) for the effective management of Filariasis, a vector borne disease. Filariasis infects 120 million people from 83 countries. The possible re-emergence of the disease and the complexity of existing control programs warrant the development of new strategies. A database containing comprehensive data associated with filariasis finds utility in disease control. We have developed a database containing information on the socio-economic status of patients, mosquito collection procedures, mosquito dissection data, filariasis survey report and mass blood data. The database can be searched using a user friendly web interface.

‣ Mortality and length-of-stay outcomes, 1993-2003, in the binational Australian and New Zealand intensive care adult patient database

Moran, J.; Bristow, P.; Solomon, P.; George, C.; Hatt, G.
Fonte: Lippincott Williams & Wilkins Publicador: Lippincott Williams & Wilkins
Tipo: Artigo de Revista Científica
Publicado em //2008 Português
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OBJECTIVE: Intensive care unit (ICU) outcomes have been the subject of controversy. The objective was to model hospital mortality and ICU length-of-stay time-change of patients recorded in the Australian and New Zealand Intensive Care Society adult patient database. DESIGN: Retrospective, cohort study of prospectively collected data on index patient admissions. SETTING: Australian and New Zealand ICUs, 1993-2003. PATIENTS: The Australian and New Zealand Intensive Care Society adult patient database, which contains data for 223,129 patients. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Hospital mortality and ICU length of stay were modeled using logistic and linear regression, respectively, with determination (80%) and validation (20%) data sets. Model adequacy was assessed by discrimination (receiver operating characteristic curve area, AZ) and calibration (Hosmer-Lemeshow C) for mortality and R2 for length of stay. Predictor variables included patient demographics, severity score, surgical and ventilation status, ICU categories, and geographical locality. The data set comprised 223,129 patients: Their mean (SD) age was 59.2 (18.9) yrs, 41.7% were female, their mean (SD) Acute Physiology and Chronic Health Evaluation (APACHE) III score was 53 (31)...

‣ Improvements to the Indiana Geological Survey’s Petroleum Database Management System

Zuppann, C. W.; Daniels, M.I.S.; Rohwer, P.; Jacob, D.; Proffitt, T. A.
Fonte: Universidade de Indiana Publicador: Universidade de Indiana
Tipo: Conferência ou Objeto de Conferência
Português
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This poster was presented at the 2011 Annual Meeting of the American Association of Petroleum Geologists, Eastern Section, in Arlington, Virginia, in September 2011.; The Indiana Geological Survey’s Petroleum Database Management System (PDMS) is a web application that provides online access to petroleum-related geological information. Since its debut in 2004, the application has been widely used by the petroleum industry, academia, government agencies, and the general public. On June 6, 2011, a significantly enhanced version of the PDMS went online. New features include a robust search menu that permits elaborate queries of more than 74,000 petroleum wells, rapid and convenient online viewing and downloading of PDF-file well reports and both PDF- and TIFF-file geophysical and other well logs, and streamlined menus for easily accessing extensive well data. An interactive, context-driven web help explains every concept or term used. The PDMS is organized in three main sections. The Well Tables Section includes such information as well location descriptions, completion zones, logs, operators, lease names, tests, reports, hydrocarbon shows, samples, cores, geologic formations and tops, and directional survey data. The Map Viewer Section contains many user-selectable layer options for showing well locations...

‣ Federated database management system: Requirements, issues and solutions

Kamel, Magdi N.; Kamel, Nabil N.
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Artigo de Revista Científica
Português
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The use of database management systems (DBMS) to replace conventional file processing systems has dramatically increased in the past years. Although the use of DBMSs overcomes many of the limitations of file processing systems, many important applications require access to and integration of information among several and often incompatible DBMSs. In this paper we discuss an approach, known as the federated database approach, that allows users and applications to access and manipulate data across several heterogeneous databases while maintaining their autonomy. We discuss the requirements and objectives of a federated database management system, and outline the major issues and challenges for building and using such a system. In particular, we address the design issues from three angles: transaction management, system architecture, and schema integration. Also, we present a five-step integration methodology followed by a comprehensive example to illustrate the concepts and techniques involved in this integration methodology.

‣ Analysis, design and implementation of a database management system for generating technical/medical reports by chiropractors

Bolling, Rodney A.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: viii, 51 p.;28 cm.
Português
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Approved for public release; distribution is unlimited; A medical center specializing in chiropractic care is burdened with the enormous task of managing numerous patient's records, preparing error free billing statements, and writing official business/medical. This task requires increased attention of staff personnel. The burden of paper file management could be lessened through automation of record keeping, while increasing accuracy, efficiency, and effectiveness. Valuable time for the providers and secretary could be saved through elimination of excessive paperwork which they are required to prepare. Based on the staff requirements, this thesis designs and implements a database management system. The primary objective is to automate the current manual system to allow providers to generate official medical reports. In addition to, this system will also store, sort, and compare data relevant to all patients while minimizing the need to maintain hard copy files. The Chiro Pro 97 (CP97) Database system is designed using Microsoft Access 97; http://archive.org/details/analysisdesignim00boll; Lieutenant, United States Navy Reserve

‣ Analysis, design, and implementation of a database management system for the CINCPACFLT PEB

Encinias, Tony R.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: 303 p.
Português
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The Commander in Chief Pacific Fleet Propulsion Examining Board (CINCPACFLT PEB) is a professional group of naval officers experienced in engineering readiness. This group of naval officers conducts examinations to assess the engineering readiness of the Pacific Fleet. There are two classes of examinations conducted by the PEB. The Operational Propulsion Plant Examination (OPPE) assesses the engineering readiness when the ship is underway. The Light Off Examination (LOE) assesses the engineering readiness after a ship's propulsion plant has been secured, for example overhauls, in excess of ninety days. The examination data is then collected in the exam summary worksheet and entered into the database. The current database system uses the dBASE IV Plus database management system (DBMS) software and is constructed as a flat file system. Redundant data, inaccuracies, and inefficiencies are prevalent throughout the current system. The purpose of this thesis is to design a relational database (Propulsion Examining Board Database System (PEBDS)), implement and replace the current system, and provide a user friendly graphical user interface (GUI). The PEBDS and the GUl are constructed using Paradox for Windows Version 4.5 DBMS software.; NA; NA; U.S. Navy (U.S.N.) author.

‣ Design and implementation of a database management system for a Navy Medical Administrative Unit

Bianchi, Kevin Albert.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: 162 p.
Português
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Approved for public release; distribution is unlimited.; The Navy Medical Administrative Unit (NMAU) for the Monterey Peninsula has a challenging mission which encompasses many administrative tasks. Medical readiness and occupational health requirements are tracked for all Navy and Marine Corps personnel in the region. In order to fulfill their mission satisfactorily, it was necessary for NMAU to get an automated database management system. The Flight Surgeon at the Naval Postgraduate School works very closely with NMAU. The Flight Surgeon's administrative responsibilities would also benefit from a database system. Based on the requirements for NMAU a database system was designed and implemented in their clinic. Based on the Flight Surgeon's requirements the data base system was further analyzed in order to assist future upgrades that would employ the flight surgeon's requirements. The primary objective, however, was to get a system on line for NMAU that would enable them to effectively and efficiently execute their mission. The Navy Medical Administrative Unit Database System (NMAUDS 1.0) was the result of the previously described endeavors; it was written in dBASE IV version 1.5.; Lieutenant, United States Navy

‣ Design and implementation of a database management system to support administrative activities onboard Hellenic Navy vessels

Tsongas, George Chris
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: 153 p.;28 cm.
Português
Relevância na Pesquisa
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Approved for public release; distribution is unlimited; The Hellenic Navy ships have a challenging mission which encompasses tactical, operational and administrative tasks. This mission is carried out by the personnel serving onboard. In order to more effectively manage the personnel, an automated database management system is required. This system would contain all personnel records and other pertinent information. Furthermore, the system would produce periodic reports required by other commands concerning crewmembers, as well as a variety of other reports designed by the user to support the daily activities onboard. This thesis designs and implements an automated database system that can be used on the Hellenic navy ships. The methodology followed is the standard systems' development life cycle (SDLC). The requirements for the system are obtained, and the database and application are designed and implemented. Paradox is used for the database management system software. Special issues like training, security, conversion and maintenance are taken into consideration. The result of this thesis is a functional application named SPAS (Shipboard Personnel Administration System) that will fulfill the users' requirements, keep track of the administrative activities of the ships...

‣ Design and implementation of a database for an integrated system for daily management in an industrial and commercial organization

Trigui, Noureddine
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: xviii, 129 p. : ill. (some col.) ;
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Approved for public release; distribution is unlimited; The purpose of this research is to define a centralized database containing all necessary information related to the daily management in an industrial and commercial organization that is publicly owned and equipped with civil personality and financial autonomy. The system is composed of the following subsystems: o Subsystem "Human resource management" o Subsystem "Provisioning" o Subsystem "Financial, budgetary and accounting management" The three subsystems should be installed in a central site and at regional sites. Each site will have its own database. The central database will be supplied with the data, which come from the other sites at the end of the day or according to need via modems. It is necessary to develop a tool for remote database queries in order to accomplish this work. The platform on which the application must be executed is IBM-INFORMIX running on top of the WINDOWS operating system. The database will be a relational database. The framework used in the design and modeling consists of: o Object Oriented Analysis (OOA), which enables the development of high quality software by defining the problem structure. o The Delphi Language, which provides a robust development environment. The installation of the solution will be executed according to the following scenario: o Client/Server architecture with the object oriented development tool DELPHI. o The database will be installed on the central and regional servers. o The application will be installed on the end users' stations. o Data access will be through an open ODBC. This software will present an integrated solution that will provide centralized and accurate data...

‣ Recent Additions and Ongoing Features of the Indiana Geological Survey's Online Petroleum Database Management System

Zuppann, Charles W.; Radhakrishnan, Prem
Fonte: Universidade de Indiana Publicador: Universidade de Indiana
Tipo: Conferência ou Objeto de Conferência Formato: 14479891 bytes; 26268962 bytes; application/pdf; application/pdf
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Abstract of Poster presented at the 35th Annual Meeting of the Eastern Section Meeting of the American Association of Petroleum Geologists, held at Buffalo, New York, October 8-11, 2006.; The Indiana Geological Survey's (IGS) Petroleum Database Management System (PDMS) was made available online in 2003 (http://www.igs.indiana.edu/pdms). At that time the PDMS contained one module which provided (and continues to provide) extensive data on more than 71,000 petroleum test wells drilled in Indiana. This module is at present termed the "Well Record Tables" of the PDMS. Well records can be searched and sorted by various criteria. Complete data for individual wells is printable in a convenient well history report. For those who wish to incorporate PDMS data into their own databases or mapping programs, all the PDMS well data tables can be downloaded, in whole or in part, as ASCII spreadsheet files. In 2005, a second module, the Map Viewer, went online. It offers an interactive map interface that presents considerable well data in map view, as well as other supporting spatial data such as topographic maps, aerial photographs, and cultural and natural features. The map view may be configured to show productive formations (pay zones), wells with samples or cores...

‣ Database As A Tool For Hospitality Management

O'Brien, William G.
Fonte: FIU Digital Commons Publicador: FIU Digital Commons
Tipo: Artigo de Revista Científica Formato: application/pdf
Português
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In his discussion - Database As A Tool For Hospitality Management - William O'Brien, Assistant Professor, School of Hospitality Management at Florida International University, O’Brien offers at the outset, “Database systems offer sweeping possibilities for better management of information in the hospitality industry. The author discusses what such systems are capable of accomplishing.” The author opens with a bit of background on database system development, which also lends an impression as to the complexion of the rest of the article; uh, it’s a shade technical. “In early 1981, Ashton-Tate introduced dBase 11. It was the first microcomputer database management processor to offer relational capabilities and a user-friendly query system combined with a fast, convenient report writer,” O’Brien informs. “When 16-bit microcomputers such as the IBM PC series were introduced late the following year, more powerful database products followed: dBase 111, Friday!, and Framework. The effect on the entire business community, and the hospitality industry in particular, has been remarkable”, he further offers with his informed outlook. Professor O’Brien offers a few anecdotal situations to illustrate how much a comprehensive data-base system means to a hospitality operation...

‣ Using Economic Models to Tune Resource Allocations in Database Management Systems

Zhang, Mingyi
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado Formato: 893161 bytes; application/pdf
Português
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67.110264%
Resource allocation in a database management system (DBMS) is a performance management process in which an autonomic DBMS makes resource allocation decisions based on properties like workload business importance. We propose the use of economic models in a DBMS to guide the resource allocation decisions. An economic model is described in terms of business trades and concepts, and it has been successfully applied in some computer system resource allocation problems. In this thesis, we present approaches that use economic models to allocate single and multiple DBMS resources, such as main memory buffer pool space and system CPU shares, to workloads running concurrently on a DBMS based on the workloads’ business importance policies. We first illustrate how economic models can be used to allocate single DBMS resources, namely system CPU shares, to competing workloads on a DBMS. We then extend this approach to using economic models to simultaneously allocate multiple DBMS resources, namely buffer pool memory space and system CPU shares, to competing workloads on a DBMS based on the workload business importance policy in order to achieve their service level agreements. Experiments are conducted using IBM® DB2® databases to verify the effectiveness of our approach.; Thesis (Master...

‣ AUTONOMIC WORKLOAD MANAGEMENT FOR DATABASE MANAGEMENT SYSTEMS

Zhang, Mingyi
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
67.51742%
In today’s database server environments, multiple types of workloads, such as on-line transaction processing, business intelligence and administrative utilities, can be present in a system simultaneously. Workloads may have different levels of business importance and distinct performance objectives. When the workloads execute concurrently on a database server, interference may occur and result in the workloads failing to meet the performance objectives and the database server suffering severe performance degradation. To evaluate and classify the existing workload management systems and techniques, we develop a taxonomy of workload management techniques. The taxonomy categorizes workload management techniques into multiple classes and illustrates a workload management process. We propose a general framework for autonomic workload management for database management systems (DBMSs) to dynamically monitor and control the flow of the workloads and help DBMSs achieve the performance objectives without human intervention. Our framework consists of multiple workload management techniques and performance monitor functions, and implements the monitor–analyze–plan–execute loop suggested in autonomic computing principles. When a performance issue arises...

‣ Resource-Aware Query Scheduling in Database Management Systems

Gruska, Natalie
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
67.13558%
Database Management Systems (DBMSs) are an integral part of many applications. Web-based applications, such as e-commerce sites, are faced with highly variable workloads. The number of customers browsing and purchasing items varies throughout the day and business managers can further complicate the workload by requesting complex reports on sales data. This means the load on a database system can fluctuate dramatically with a sudden influx of requests or a request involving a complex query. If there are too many requests operating in the DBMS concurrently, then resources are strained and performance drops. To keep the DBMS’s performance consistent across varying loads, a load control system can be used. This thesis investigates the concept of a load control system based on regulating individual resource usage in a predictive manner. For the purpose of this proof-of- concept study, we focus on a specific resource; namely, the sort heap. A method of estimating sort heap usage based on the query execution plan is presented and several scheduling methods based on these estimations are proposed. A prototype load control system is used to evaluate and compare the scheduling methods. Experiments show that it is possible to both estimate sort heap requirements and to control sort heap usage using our load control system.; Thesis (Master...

‣ The Implementation of a Network Oriented Database Management System Designed to Run Under the Unix Operating System

Dvonch, Mary
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
57.13558%
We have designed a network approach, low level access system. Our conceptual model is specifically designed to run under the UNIX operating system. Our model has been tooled in the UNIX tradition. We have also supplied a manipulation language for use on the database. Our system does its own input and output buffering.

‣ An extended relational data base management system for engineering design

Fung, Charles
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
57.110264%
At present, the use of the relational model in the engineering design support domain is restricted due to the following: lack of ability to handle complex objects, no support for Abstract Data Types, inappropriate concurrency control for long transactions, no support for versioning and update propagation, poor efficiency, and insufficient design rule checking and consistency contraints enforcement. A simple relational database management system is designed and implemented under the UNIX operating system to incorporate two major extensions: support of user-defined Abstract Data Types and operators, and built-in Design Data Versioning. The design, implementation, and possible extensions to these new facilities are described.

‣ An image storage system using a relational database management system to facilitate picture data handling

Johnson, Daryl G.
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
Português
Relevância na Pesquisa
67.35274%
The Image Storage System (ISS) is a general purpose graphics facility for the storage and retrieval of pictures. ISS utilizes the capabilities of the Mistress Relational Database Management System, the Relation Interpreter Package and the CORE Graphics Package. The system was developed to illustrate that by utilizing a database system for the storage of the actual picture description, users can incorporate graphics into their applications very simply without becoming a graphics or programming expert. Through the database, image data can be shared between applications and changes or additions to the image will not require program modification. As a consequence of using a data base management system, graphical as well as nongraphical information may be stored together. An important out come of this is that the graphical data may be accessible for non-graphical purposes as well. The database schema is illustrated and its flexibility and user adaptability is demonstrated. The graphics image interpreter is described as well as the underlying Relation Interpreter Package on which it is built.