Um caminho filosófico com Schopenhauer

Um Repositório Chave-Valor com Controle de Localidade

The ever increasing volume of data produced nowadays presents challenges for storing and processing this data. Traditional database solutions are not efficient to face these challenges, especially with respect to scalability. One approach to provide scalability is the adoption of a layered architecture which combines a distributed storage system with a simple access interface. This paper presen...

Escolhas Estratégicas e Estilo Cognitivo: um Estudo com Pequenas Empresas

This study describes the cognitive structure adopted by small firms’ owners and managers in the strategic management of their businesses. The influence of respondents’ cognitive styles over strategic decisions was explored, as well as the role exerted by environmental turbulence on strategic choices. A careful exploration of Miles and Snow’s (1978) taxonomy of strategic types and Kirton’s (1976...

Um Modelo Integrado de Requisitos com Casos de Uso

Linguagens computacionais como interfaces: um estudo com nested context language

This paper presents an empirical study about the Nested Context Language (NCL), which is a language developed to create multimedia documents and Interactive Digital TV (IDTV) applications for the Brazilian system. The goal was to obtain indicators of NCL usability in the generation of content for IDTV, since this language plays the role of interface language for users. Through data collected on...

Um SGBD com Armazenamento Distribuído de Dados Baseado em DHT

This paper investigates the development of a DHT-based storage engine for a database management system (DBMS). The storage engine is responsible for implementing the interface between an SQL query processor and a DHT, by translating operations based on relations to DHT standard operations. By combining DHTs to DBMSs we achieve scalability, decentralization, and fault tolerance, due to a DHT-bas...