Modeling dynamic relationship types for subsets of entity type instances and across entity types

作者：

Highlights：

• A new entity type named star-entity (*-entity) type which facilitates participation of subsets of entity instances is introduced.

• A new relationship type named star-relationship (*-relationship) type which relax the relationship type to permit flexible relationships among entity types participating in a relationship instance is introduced.

• Presented effective modeling of e-contracts database requirements by using proposed *-entity type and *-relationship type constructs.

• The mapping of *-entity type and *-relationship type to relational data model is developed.

摘要

•A new entity type named star-entity (*-entity) type which facilitates participation of subsets of entity instances is introduced.•A new relationship type named star-relationship (*-relationship) type which relax the relationship type to permit flexible relationships among entity types participating in a relationship instance is introduced.•Presented effective modeling of e-contracts database requirements by using proposed *-entity type and *-relationship type constructs.•The mapping of *-entity type and *-relationship type to relational data model is developed.

论文关键词：ER model,Star constructs,Relational model,e-Contract meta-model

论文评审过程：Received 5 July 2012, Revised 10 March 2016, Accepted 14 March 2016, Available online 4 April 2016, Version of Record 19 April 2016.

论文官网地址：https://doi.org/10.1016/j.is.2016.03.010