scholarly journals Improved Database Schema Development for OWL2

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
Henrihs Gorskis
Keyword(s):  
Database Schema ◽  
Schema Development

Predicitive Approach for Database Schema Evolution

2011 ◽  
pp. 286-309 ◽  
Author(s):  
Hassina Bounif
Keyword(s):  
Information Systems ◽  
Human Resources ◽  
Financial Support ◽  
Business Strategies ◽  
Database Schema ◽  
User Requirements ◽  
Schema Evolution ◽  
Schema Development ◽  
Predictive Approach ◽  
Alternate Solution

Information systems, including their core databases need to meet changing user requirements and adhere to evolving business strategies. Traditional database evolution techniques focus on reacting to change to smoothly perform schema evolution operations and to propagate corresponding updates to the data as effectively as possible. Adopting such a posteriori solution to such changes generates high costs in human resources and financial support. We advocate an alternate solution: a predictive approach to database evolution. In this approach, we anticipate future changes during the standard requirements analysis phase of schema development. Our approach enables potential future requirements to be planned for, as well as the standard, determining what data is to be stored and what access is required. This preparation contributes significantly in the ability of the database schema to adapt to future changes and to estimate their relative costs.

THE GEMS DATABASE SCHEMA FOR GEOLOGIC MAPS – ENSURING COMPLIANCE WITH THE STANDARD

2020 ◽  
Author(s):  
David R. Soller ◽  
◽  
Ralph A. Haugerud ◽  
Evan E. Thoms ◽  
Nancy R. Stamm ◽  
...  
Keyword(s):  
Database Schema ◽  
Geologic Maps

scholarly journals A generator of SQL schema specifications

2007 ◽  
Vol 4 (2) ◽  
pp. 81-100 ◽  
Author(s):  
Slavica Aleksic ◽  
Ivan Lukovic ◽  
Pavle Mogin ◽  
Miro Govedarica
Keyword(s):  
Information System ◽  
Normal Form ◽  
Relational Database ◽  
Sql Server ◽  
Database Schema ◽  
Intelligent Support ◽  
Case Tool ◽  
Design Environments ◽  
Data Constraints

IIS*Case is an integrated CASE tool that supports the automation and intelligent support of complex and highly formalized design and programming tasks in the development of an information system. IIS*Case, as a tool from the class of domain oriented design environments, generates relational database schemas in 3rd normal form with all relevant data constraints. SQL Generator is an IIS*Case tool that generates the implementation specification of a database schema according to ANSI SQL:2003 standard. The generator may also produce a database schema specification for Microsoft SQL Server or Oracle DBMSs. The paper describes SQL Generator's traits, considers aspects of its application, and shows its use in the implementation of a complex database constraint using procedural mechanisms of a particular relational DBMS. SQL Generator is implemented in Java and Oracle JDeveloper environment.

scholarly journals XML schema metrics for quality evaluation

2014 ◽  
Vol 11 (4) ◽  
pp. 1271-1289 ◽  
Author(s):  
Maja Pusnik ◽  
Marjan Hericko ◽  
Zoran Budimac ◽  
Bostjan Sumak
Keyword(s):  
Building Blocks ◽  
Xml Schema ◽  
Crucial Issue ◽  
Software Developers ◽  
Business Information Systems ◽  
Quality Aspects ◽  
Schema Development ◽  
Quality Aspect ◽  
Definition Of

In XML Schema development, the quality of XML Schemas is a crucial issue for further steps in the life cycle of an application, closely correlated with the structure of XML Schemas and different building blocks. Current research focuses on measuring complexity of XML Schemas and mainly do not consider other quality aspects. This paper proposes a novel quality measuring approach, based on existing software engineering metrics, additionally defining quality aspect of XML Schemas in the following steps: (1) definition of six schema quality aspects, (2) adoption of 25 directly measurable XML Schema variables, (3) proposition of six composite metrics, applying 25 measured variables and (4) composite metrics validation. An experiment using 250 standard XML Schemas collected from available e-business information systems was conducted. The results illustrate influence of XML Schema characteristics on its quality and evaluate applicability of metrics in the measurement process, a useful tool for software developers while building or adopting XML Schemas.

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