Schema Vacuuming in Temporal Databases

Temporal databases facilitate the support of historical information by providing functions for indicating the intervals during which a tuple was applicable (along one or more temporal dimensions). Because data are never deleted, only superceded, temporal databases are inherently append-only resulting, over time, in a large historical sequence of database states. Data vacuuming in temporal databases allows for this sequence to be shortened by strategically, and irrevocably, deleting obsolete data. Schema versioning allows users to maintain a history of database schemata without compromising the semantics of the data or the ability to view data through historical schemata. While the techniques required for data vacuuming in temporal databases have been relatively well covered, the associated area of vacuuming schemata has received less attention. This paper discusses this issue and proposes a mechanism that fits well with existing methods for data vacuuming and schema versioning

Setup and configuration of a digital library based on Ubuntu and DSpace

The purpose of this project is to analyze the requirements, prepare the technologic environment and perform the deployment of a Digital Repository to improve the information processes of an organization.García Martínez, JV. (2012). Setup and configuration of a digital library based on Ubuntu and DSpace. http://hdl.handle.net/10251/17657.Archivo delegad

Digital archives : comparative study and interoperability framework

Estágio realizado na ParadigmaXis e orientado pelo Eng.º Filipe CorreiaTese de mestrado integrado. Engenharia Informátca e Computação. Faculdade de Engenharia. Universidade do Porto. 200

Processor of TSQL2 on a Relational Database System

Tato práce se zabývá návrhem a implementací interpretu jazyka TSQL2 pro překlad do SQL. Stručně seznamuje čtenáře s pojmem temporální databáze a přestavuje jazyk TSQL2. Jsou zde také popsány existující implementace temporálních databází a je zhodnocena jejich praktická použitelnost pro správu temporálních dat. Hlavní částí práce je potom popis návrhu a implementace překladače jazyka TSQL2. Výsledkem práce je funkční interpret jazyka TSQL2 implementovaný v jazyce Java jako nadstavba nad ovladač JDBC.This thesis is focused on design and implementation of TSQL2 language interpreter for SQL. It briefly introduces temporal database and language TSQL2. Currently available implementations of temporal database systems are introduced and their practical usability for temporal data is reviewed. Main part of this thesis covers design and implementation of TSQL2 interpreter. A working TSQL2 interpreter implemented in Java as JDBC adapter is the result of this work.

DSpace Manual: Software version 1.5

DSpace is an open source software platform that enables organizations to: - Capture and describe digital material using a submission workflow module, or a variety of programmatic ingest options - Distribute an organization's digital assets over the web through a search and retrieval system - Preserve digital assets over the long term This system documentation includes a functional overview of the system, which is a good introduction to the capabilities of the system, and should be readable by nontechnical personnel. Everyone should read this section first because it introduces some terminology used throughout the rest of the documentation. For people actually running a DSpace service, there is an installation guide, and sections on configuration and the directory structure. Note that as of DSpace 1.2, the administration user interface guide is now on-line help available from within the DSpace system. Finally, for those interested in the details of how DSpace works, and those potentially interested in modifying the code for their own purposes, there is a detailed architecture and design section

Creating a conservation plan for the domestic apparel collection in the apparel & textile merchandising program at Eastern Michigan University

Creating a conservation plan for a collection of garments and accessories is crucial in keeping the collection alive and accessible to others. Without structure and proper handling, a collection will fall into disarray and the valuable information and potential use of the collection will be lost. The public interest in such collections is growing and museums must create structure in order to adapt. If completed successfully, a properly cared for collection will serve as a valuable asset to the greater body of knowledge. The collection within Eastern Michigan University is in such a state that it requires a protocol system to be developed and executed in order for the collection to survive and become accessible to others. I will research and propose a system based on the practices of several similar institutions. This research includes plans for a website, proper photography of items within the collection, searchable database, and developing a catalog system. These areas will be the main focus, with handling, storage, supplies, and lab protocols as secondary areas to address. This project resulted in the development of a “Starters Manual” for the collection, which addresses these areas. Due to this research, future classes will be able to implement the practices outlined within. Also, outside individuals and institutions will be able to access information regarding the collection

Mustang Daily, November 15, 2005

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.https://digitalcommons.calpoly.edu/studentnewspaper/7368/thumbnail.jp