Putting charges and alteration in a single example provides a complete view of a ProductOfferingPrice.  A simple wireless plan includes a 75 dollar phone, a 50 dollar activation fee, a 20 dollar monthly charge replaced by 10 dollar during 6 months, 10 cents a minute for additional minutes, and 25 cents a minute long distance. The components are<br/>        • A 75 dollar One Time Charge (OneTimeProdOfferPriceCharge)<br/>        • A 50 dollar Fee (FeeProdOfferingPrice)<br/>        • A 20 dollar Recurring Charge per month (RecurringProdOfferPriceCharge)<br/>        • A 10 dollar replacement of the recurring charge during 6 months (ReplacementProdOfferPriceAlteration)<br/>        • A Tariff Usage comprising a 10 cent per minute Simple Usage and a 25 cent per minute Simple Usage for long distance (SimpleUsageProdOfferPriceCharge)<br/>Adding on to the example, suppose Sue is an employee of a company, that has a volume discount agreement with the service provider. The agreement is to waive the installation fee and provide a 20 percent discount on local minutes. This would manifest itself as:<br/>        • A composite price that associated the 50 dollar Discount (DiscountProdOfferPriceAlteration) with the 50 dollar Fee<br/>        • A composite price that associated the 20 percent Discount (DiscountProdOfferPriceAlteration) with the 10 cent per minute Simple Usage<br/>In addition a Tax (TaxProdOfferPriceAlteration) might be applied on each component or composite ProductOfferingPrice.<br/>The complete ProductOfferingPrice model is shown in the figure below.<br/>