During the last decade, the emergence of the so-called high-throughput screening (HTS) technique in pharmaceutical research has allowed biologists to design and set up assays, aimed toward the identification of active compounds, that can test large numbers of compounds in a short time period. Great advances in automation, information science, data management, and related disciplines have contributed to create a typical environment where every biological laboratory requires tens of thousands of compounds to be tested on several assays in a week.