Entity Relation Diagram structures and notations are different at least five features. Some allow attributes in a relationship, how they represent cardinality and participation constraints, the place where they specify constraints, or they portray overlapping and split subclass entity-types, or they show total or partial narrowing down, and whether they model the foreign key at the ERD level.
Bachman Notation also known as data structure diagram is used to design the data with a network or relational logical model. It divides the data from model. This is how the data is stored in the system.
Barker's Notation signifies the properties of relationships including cardinality and optionality, exclusion, recursion and the use of abstraction.
EXPRESS is a data modeling language, the EXPRESS Language Reference Manual. Data models strictly define data objects and relationships amongst data objects for the domain of interest.
Data modeling language for the development of semantic data models is the structure and semantics of material within an environment or system is characterized by a graphical information model.
Unified Modeling Language A type of static structure diagram that describes the structure of a system by showing the system's classes,