The relational database, which has been foundational to the information economy, is no longer sufficient for today's digital transformation driven by mobile technology, ecommerce, IoT, and personalized interactions. NoSQL databases have successfully addressed the major shortcomings of relational databases and achieved production deployments in demanding business environments. Couchbase combines the advantages of a NoSQL database architecture with enterprise-class capabilities, ensuring reliability and performance. It provides SQL query capabilities on JSON data, allowing database administrators, architects, and developers to reuse their existing SQL expertise in a NoSQL environment. The introduction of Couchbase 7.0 added ACID-compliant SQL transaction capabilities and a Dynamic Data Containment model, making it a viable alternative to legacy databases. Enterprises can modernize their slow-performing, rigid applications by migrating them to Couchbase using the erwin Data Modeler, which supports both normalized and denormalized design paradigms. The critical importance of query-optimized data modeling is key to achieving performance and response from Couchbase, ensuring operationally efficient use of infrastructure and resources. With erwin Data Modeler and erwin Data Intelligence, organizations can accelerate the design and development of ETL jobs required to move data from legacy DBMSs to Couchbase, resulting in faster time to success.