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Kolector UT, Argentina.
Reactive systems platform, Public Sector
Architecture design and software development
Kolektor UT, a government consulting and services contractor needed to modernize the Taxpayer Statement and Payment system of the second most populated state in Argentina with a new approach and objective: to improve the responsiveness, scalability and availability of the legacy system. The system had to process data of 3.5+ Million of taxpayers and 80+ Million of tax liabilities.
to understand the business language and domain model, we used the EventStorming technique in the Strategic Design stage and modeled the solution using DDD – Domain Driven Design. The new platform was designed with an event-driven approach that includes a CDC (change data capture) from data sources, an ETL tool to extract and filter, a business rules engine to process records that are passed to the stage business logic, a reactive system of actors to distribute state in a cloud-based architecture. Data at rest is managed by a distributed, fault-tolerant database that segregates reads from writes. The solution was fully tested on AWS public cloud, although the platform is hosted entirely on Openshift private cloud and its CI/CD pipeline is fully automated.
The new platform was launched in June 2021 ingesting +100 million events, integrated into the legacy tax system and a new blockchain-based virtual wallet payment system.
The results in Production showed a more resilient, scalable and responsive solution, with a simplified domain model that allows new functionalities to be introduced in a more agile and flexible way. During the following months, thanks to this implementation, a new tax system (Oracle PSRM) and a new discount module were also integrated in a transparent way for Taxpayers
