package com.yahoo.shopping;import java.math.BigInteger;public interface MerchantRating {    float getMaxRating();    BigInteger getNumberOfRatings();    float getOverallRating();    float getPriceSatisfactionRating();    float getShippingOptionsRating();    float getTimelyDeliveryRating();    float getEaseOfPurchaseRating();    float getCustomerServiceRating();    String getRatingUrl();}