NServiceBus
**NServiceBus** is a message-based middleware platform that simplifies the development of distributed applications where distributed transactions are needed. NServiceBus enables you to achieve high availability, scalability, and fault tolerance in your applications without having to invest a lot of time and effort in distributed systems programming. NServiceBus is used by many organizations around the world, including Microsoft, Amazon, and Google.
Distributed transactions
A distributed transaction is a transaction that spans multiple nodes in a distributed system. For example, if you have an application that runs on two different servers, and you want to transfer money from one account to another, you would need to use a distributed transaction to ensure that the money is either transferred from both accounts or not at all.
Distributed transactions are complex to implement, because you need to make sure that the transaction is atomic, consistent, isolated, and durable. NServiceBus makes it easy to implement distributed transactions by providing a set of libraries and tools that handle all of the low-level details of distributed transaction management.
Microservices
Microservices are a software design pattern that is used to build loosely coupled, distributed applications. NServiceBus is a great choice for developing microservices, because NServiceBus makes it easy to create and manage distributed transactions.
Microservices are often used to build large, scalable applications. NServiceBus provides the scalability and performance that you need to build large, complex applications.