# What goes into a DATA module?

Use the data module to define one of the following data structures:

• data : composite dataType, equivalent to a case class.

  data Lottery(lotteryName:String,amount:Int,participantList:String*,winner:String?)
  

• enum : enumeration data type

  enum LotteryStatus => OPEN ("Open") | CLOSE ("Close") | CANCELLED
  

• type-alias

  type-alias LotteryRow as "com.metastay.lotterymongo.LotteryRow"
  

• adt : abstract data type

  adt PaymentType(amount:Int) => 
  		Cheque(amount:Int,dateIssued:CalendarDate) | Cash(amount:Int)