In the same way as with relational systems, schema evolution is a crucial aspect of NoSQL
systems. But providing approaches and tools to support NoSQL schema evolution is more …

Changing a database schema is a fact of life in information systems, as a response to
changes inside the enterprise (eg, new users' requirements, correction of errors in the …

Equivalent to relational databases, there is a need for an evolution language for graph
databases that describes how evolution operations such as add, rename, delete, copy …

Purpose This study aims to propose an architecture and presents the implementation of a
unified chatbot that faces the challenges of heterogeneous communication channels. This …

Graph databases offer a flexible storage of interconnected data. Due to NoSQL databases
being schema-less, heterogeneous data can occur when performing data changes …

The schema flexibility of database management systems is often seen as an advantage,
because it makes it easy to store all kinds of different data. Schema-less database systems …