ST-ASS-NI is a module for the Ninigi Distributed Service Bus that allows software to communicate, or "talk" to each other, in order to exchange information, control transactions, and create reliable, secure relationships. It enables developers to create robust and efficient communication between two or more services, regardless of their implementation language or technical architecture. It is based on an extensible messaging protocol that makes it possible for distinct services to interact even if the systems or applications involved do not share the same network, infrastructure, or data formats.