Working with Multiple Business Interface

public interface BidManager{
void addBid(Bid bid);
// remove bid end tag
List getBids(Item item);
}

@Local
public interface BidManagerLocal extends BidManager {
void cancelBid(Bid bid);
}

@Remote
public interface BidManagerRemote extends BidManagerLocal {
}

@WebService
public interface BidManagerWS extends BidManager {
}

@Stateless(name = "BidManager")
public class BidManagerBean implements BidManager {
}