Difference between VelocityDB and Weaviate

1. VelocityDB :
It is .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph) Database is fast and low memory consuming. It is an extremely high performance, easy to use, scalable, embeddable, and distributable object database system.

2. Weaviate :
It is open-source GraphQL-based Smart Graph with the core features: semantic search, automatic classification, and knowledge representation. Primary database model is Search Engine and secondary database models are Graph DBMS. It allows our data to represent in a large graph format based on the GraphQL query language. Its search graph based on a graph embedding mechanism called the Contextionary.

Difference between VelocityDB  and Weaviate :

VelocityDB	Weaviate
It is developed by VelocityDB Inc and initially released on 2011 .	It is developed by SeMI Technologies B.V. and initially released on 2017.
Server operating systems of VelocityDB  is Any that supports .NET	No such server operating systems in Weaviate .
Its primary database model is Graph DBMS and Object oriented DBMS	Its primary database model is Search Engine.
Absence of Secondary database models in VelocityDB	Its secondary database models is Graph DBMS.
It supports .Net programming languages.	No such supported programming languages in Weaviate.
APIs and other access methods of VelocityDB is .Net	It supports GraphQL query language and RESTful HTTP/JSON API.
It has a Data Schema.	Data Schema of Weaviate is maps to GraphQL interface.
It has Implementation language-C# .	Implementation language of Weaviate is Go.
Its transaction concepts is ACID (Atomicity, Consistency, Isolation, and Durability).	Absence of transaction concepts in Weaviate.
Absence of Replication methods	There is replication methods.
It has immediate Consistency concept.	It has Eventual Consistency concept.

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