End-to-end deal execution system and method

A computer-implemented method for deal execution for issuance of securities, the method comprising:

• providing a user interface programmed for executing a unidirectional data flow, user interface read operations pull updates from a database layer via a data access layer through a microservices layer and a connectivity layer in a first pathway, and user interface command actions to change data flow through the connectivity layer and microservices layer to the data access layer which writes that data change to the distributed cache in a second pathway;
• providing, using the connectivity layer, data streaming across a plurality of channels, regions and users, utilizing a protocol buffer for the data streaming the protocol buffer compressing the data stream;
• processing, using the data access layer, requests from the connectivity layer in a multi-threaded, multi-process configuration, utilizing an in-memory data grid for distributing processing of the requests to a plurality of processors;
• subscribing to events published by the data access layer and updating the data access layer once event execution is completed, using a modular microservices layer designed with an event-driven model using a command query responsibility segregation (CQRS) pattern;
• storing and providing data to the data access layer, using a database layer;
• and
• exchanging data with plurality of third parties including a regulatory agency and a third party financial information provider, using a plurality of external application programming interfaces (APIs).

A computer-implemented method for deal execution for issuance of securities, comprising:

• establishing a first service pathway between a user interface layer and a microservice layer for providing one or more updates from a data source in an in-memory data grid to the user interface layer, the one or more updates travelling from the microservice layer through a messaging layer to the user interface;
• and
• establishing a second service pathway, distinct from the first service pathway, between the user interface layer and the microservice layer for providing one or more updates from the user interface layer to the in-memory data grid via one or more payloads using a protocol buffer to compress the one or more payloads, the one or more updates travelling from the user interface through the messaging layer to the microservice layer, wherein
• the second service pathway comprises one or more action dispatchers which mutate one or more data elements in response to the one or more updates from the user interface layer.