In online casino technology, interoperability refers to the ability of different systems to work together across platforms.

• A. The speed of payouts
• B. Availability of data across platforms
• C. The design of the user interface
• D. The security of databases

Answer: (B)

Interoperability is about systems being able to work together across different platforms by sharing and interpreting the same data so actions on one device or system are reflected on others. In online casino tech, this means player accounts, game states, bets, and outcomes stay consistent no matter where you access them—mobile, desktop, or different game providers—so the experience feels seamless.

The best choice captures this idea because it centers on data availability and consistency across platforms, which is the essence of cross-system compatibility. The other options relate to performance or user experience—payout speed, the look and feel of the interface, and database security—areas that matter but do not define interoperability themselves.