[PDF] Top 20 Approach for Managing Variability in Database Schema

... model variability in the target class ...the variability within the diagram. If the variability is in the attributes then we generate for each class stereotyped <<normal>> of the target ... See full document

... XML database is a data persistence software system that allows data to be stored in XML ...query approach and the keyword-based ...the schema of database, it is difficult to write the right ... See full document

... assessment approach is to calculate the probability that an application will be breaking the schema- based constraints in a relational database using state machine ...this approach will be ... See full document

... This approach was found to be the most consistent and effective way to grant analysts the ability to map unique client identifiers, while taking into account that one or more of these parameters may change over ... See full document

... XML schema design approaches is XML Functional Dependency and Normalization ...relational database on XML database schema design, many other researchers have worked on the same manner, but it ... See full document

... genomic database need a thorough process to identify entities and relationship among genes-variation and ...This approach had been widely used to portray much medical and biological ...relational ... See full document

... Now we discuss the detailed approach of our proposed system to extract entities and their respective attributes from natural language requirements. It includes mainly following modules. [2] They are accepting the ... See full document

... the database to an earlier snapshot point in time (say January 1996) and playing forward the transactions that occurred on the database until the value was ...the database need not be cluttered with ... See full document

... PMU database to automatically generate a set of LRS routes by successively traversing all the ...this approach could result in a highly irregular ... See full document

... object-oriented database schemas with automated method for data migration to converted ...relational schema, depending on input relational pattern transformational rules are applied to get target enriched ... See full document

... a database, add new objects and perform administrative functions like security management (including transfer of object ownerships) and space management ...a database schema so that the user can ... See full document

... (ER) schema. We study about fifteen supply-driven approaches having ER schema as ...relational database taken as input. We propose an approach to transform relational databases [8] into ... See full document

... requires managing heterogeneous schema information. A federated database system integrates heterogeneous, autonomous database systems on the schema level, whereby both local ... See full document

... a database.” A database management system (DBMS) is a software package that allows the user to set up, use and maintain a ...for database organization and data handling (De By ...digital ... See full document

... between the source and the target data; thus, allowing DBMS to play an expanded role as a data transformation engine as well as a data store. This approach enables a complete interaction between mapping metadata ... See full document

... existing schema matching approaches discovered an area of improvement in the field of semantic schema ...improved schema normalization approach that addresses the complexity of stop-words ... See full document

... Nevertheless, XML schema is more powerful to represent XML document structure and overcome the limitations of DTD. XML schema could work as a fact repository [6]. Data Warehouse is subject-oriented, ... See full document

... Improved Schema (IS) failed to apply its protection mechanisms once only, while the Competitor Schema 1 (CS1) and Competitor Schema 2 (CS2) failed 6 times and 7 times, ... See full document

... Raising software abstraction and re-use levels are key success factors for producing quality software products. Model- driven architecture (MDA) is an OMG initiative following this trend by mapping a conceptual model of ... See full document

... target schema to the global schema. The global schema contains standard predefined schema, where the schema at the source will map to this ...global schema is meant to ... See full document