## Structured Note

**is a direct subtype of Tradable with functions Structured Note Functions, keys Structured Note keys and example object StrNote that represents a financial contract that pays its holder on a specified payment date**

*Structured Note***a payoff amount**

*T***that is a function of**

*A***variables**

*K***that are observed at a perhaps earlier time**

*x¹, x², ..., xᴷ*

*T**Formally:

*A = ƒ(x¹,x²,...,xᴷ)*where

**is a specified real valued function of**

*ƒ***real variables and the**

*K***numbers**

*K***are associated with**

*x¹, x², ..., xᴷ***specified underlyings**

*K***as follows:**

*U¹, U², ..., Uᴷ***is allowed to be either a Tradable or a Quotable**

*Uⁱ*If

**is a**

*Uⁱ***, then**

*Tradable***equals its price that is calculated as of**

*xⁱ***expressed in units of the common currency specified in Payoff Ccy**

*T**If

**is a**

*Uⁱ***, then**

*Quotable***equals its value as of**

*xⁱ*

*T**The thus calculated amount

**is paid at**

*A***in units of a specified currency.**

*T*