Horsham, Pa--VerticalNet Inc. has formed an alliance with Computer Sciences Corp., an information technology services company. The move is yet another sign that VerticalNet is moving away from its e-marketplace origins and morphing into a software development company. Indeed, as part of the alliance CSC was named a preferred systems integrator for VerticalNet's suite of b-to-b software. The companies will target U.S.-based customers in manufacturing and other industrial business sectors that want b-to-b private marketplace programs. They'll also work together on a range of sales and marketing initiatives. The alliance was announced just two days after VerticalNet said it was laying off 25% of its work force.