The document discusses a client modernization project where an old IBM AS/400 system managing legal professional data was replaced with a new system built using Java, HTML5, and Angular on WaveMaker. WaveMaker helped with database redesign, UI development, integrating external APIs, and automatically generating APIs for database access and auditing. WaveMaker significantly reduced the time and cost of the modernization project while future-proofing the applications and allowing for scalable operations.