anchor.diff:  
   [[Child]]Child:: An account that is associated with a parent account. Setting up a parent-child associations lets you define which entity is responsible for paying the invoice. See also <<Parent>>.
   
  -Credit
  -
  -
   Customer:: The person who purchases a product or service from your organization. See also <<Account>>.
   
   == D
   
  +Discount Phase:: A type of <<Phase,phase>> that defines a lower price for a set time period (after which the regular price automatically takes effect). A discount phase is specified as part of a <<Plan,plan>> within the <<Catalog,catalog>>.
  +
  +Downgrade:: The change of a subscription from one plan to another plan of lesser dollar value.
  +
  +Duration:: Defines the length of time for a <<Phase,phase>>. Kill Bill supports durations of days, months, years or unlimited.
  +
   == E
  +
  +Evergreen Phase:: A type of <<Phase,phase>> in which no end date is specified and Kill Bill continually bills the account for the subscription. A evergreen phase is specified as part of a <<Plan,plan>> within the <<Catalog,catalog>>.
   
   External Key:: An alternative unique ID for an object, which you can use to map the object with an external resource. For example, you could define an external key for a specific customer account, which is the same as the identifier  used in your CRM system.
   
  
positive.code: 
  [[Subscription]]Subscription:: A contract between your organization and a customer to purchase a particular product/service with particular terms. Kill Bill associates a subscription with a <<Plan,plan>>, an <<Account,account>>, and a start date.
  
  Subscription Bundle:: See <<Bundle>>
  
  == T
  
  
negative.code: 
  Payment Method:: A record of payment details, such as for credit cards, debit cards, PayPal accounts, etc. Each account can have many payment methods and one default payment method. Note that much of the representation of a payment method is plugin-specific and is actually stored by the payment plugin itself.
  
  [[Phase]]Phase:: The time periods within a plan. Kill Bill phases can be any of the following types: `TRIAL`, `DISCOUNT`, `FIXEDTERM`, or `EVERGREEN`. Note that a plan has at least one phase (i.e., a plan cannot be "empty" of phases.) A phase is also referred to as a "plan phase." See <<Plan>> below.
  
  [[Plan]]Plan:: Details for the terms of the <<Subscription,subscription>> contract. In particular, plans define how much a customer pays for a product and how often they pay it (_Example:_ A Standard product at $100 per month). A plan consists of at least one phase and can have multiple phases (_Example:_ A discount phase followed by a regular price phase).
  
  Price List:: One or more plans that have discount/special pricing. Price lists are defined in the <<Catalog,catalog>>.
  Along with price lists, you define <<Rules,catalog rules>> that specify which price list to use if a customer changes plans.
  
  [[Product]]Product:: A product or service that the customer can purchase (or rent/lease). A product can be associated with multiple <<Plans,plans>>, each plan specifying different ways the product can be purchased (e.g., a monthly plan and an annual plan).
  
  == Q
  
  == R
  
  [[Rules]]Rules:: The rules that determine how Kill Bill should behave when a plan is created, cancelled or changed. Also known as "catalog rules."
  
  