Which of the following is NOT a feature of transaction processing systems?

Transaction processing systems are designed primarily to manage and facilitate the exchange of payment transactions efficiently and securely. Their core functionalities include features like real-time transaction authorization, handling multiple payment methods, and secure data encryption, all of which are critical for processing payments reliably and protecting sensitive information.

Real-time transaction authorization allows systems to quickly verify and approve transactions, essential for ensuring that purchases can occur without delay. Handling multiple payment methods enables flexibility and convenience for customers, accommodating various payment options like credit cards, debit cards, and digital wallets. Secure data encryption is vital for safeguarding transaction data during processing, preventing fraud, and ensuring compliance with regulations that protect consumer information.

Personalization of marketing materials, while an important aspect of customer relationship management and marketing strategies, is not a primary function of transaction processing systems. It focuses more on delivering targeted content based on customer preferences rather than managing or facilitating the transaction itself. This feature falls outside the operational scope of transaction processing systems, which center around efficient payment processing and safeguarding customer data in a transactional context.