High Quality Content by WIKIPEDIA articles! Computer Associates International, Inc. v. Altai, Inc., 982 F.2d 693 (2d Cir. 1992) is a decision from the United States Court of Appeals for the Second Circuit that addressed to what extent non-literal elements of software are protected by copyright law. The court used and recommended a three-step process called the Abstraction-Filtration-Comparison test. The case was an appeal from the United States District Court for the Eastern District of New York in which the district court found that defendant Altai's OSCAR 3.4 computer program had infringed plaintiff Computer Associates' copyrighted computer program entitled CA-SCHEDULER. The district court also found that Altai's OSCAR 3.5 program was not substantially similar to a portion of CA-SCHEDULER called ADAPTER, and thus denied relief as to OSCAR 3.5. Finally, the district court concluded that Computer Associate's state law trade secret misappropriation claim against Altai was preempted by...