both a ``method of operation'' (using an approach not dissimilar to the 

First Circuit's analysis in Lotus) and a ``functional requirement for 

compatability'' (using Sega v. Accolade, 977 F.2d 1510 (9th Cir. 1992) and

Sony Computer Ent. v. Connectix, 203 F.3d 596 (9th Cir. 2000) as analogies),

Perhaps not surprisingly, there have been few other cases involving a highly

detailed software derivative work analysis. Most often, cases involve

clearer basis for decision, including frequent bad faith on the part of