미국대학원 과제 지하철 시스템을 위한 데이터베이스 구축의 기술적 요구사항 발표자료 Columbia Univ Technical Requirement of Database Architecture for Metro System Presentation

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Unifying the Metros under a Single Ticket System
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Executive Summary
A QR based system is proposed to unify the NYC tri-state metro systems.
MySQL (SQL-based) and MongoDB (NoSQL-based) systems are proposed for backend storage operations.
We recommend MySQL as its more stable, easier to hire for, and established solutions exist for common problems
Use of prediction systems for adequate analysis is also recommended, keeping in line with the business requirements
Proper da