diff --git a/README.md b/README.md
index 8bae342e..93dcfe04 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,12 @@ If transfersEnabled == false, tokens cannot be transferred by the users, however
     // Allows tokens to be transferred if true or frozen if false
     function enableTransfers(bool _transfersEnabled) onlyController
 
+## Contract schema
+
+The contracts provided by this project adopt this relationships indicated in the diagram below.
+
+![UML schema](./doc/schema.png "Contract schema")
+
 
 ## Applications
 
diff --git a/doc/schema.png b/doc/schema.png
new file mode 100644
index 00000000..c30ceefa
Binary files /dev/null and b/doc/schema.png differ
diff --git a/doc/uml-schema.txt b/doc/uml-schema.txt
new file mode 100644
index 00000000..52c5494f
--- /dev/null
+++ b/doc/uml-schema.txt
@@ -0,0 +1,16 @@
+// Diagram generated from https://yuml.me/diagram/plain/class/draw
+
+[Owned|+owner: address|Owner(); onlyOwner; changeOwner() onlyOwner]
+
+[TokenController|proxyPayment();onTransfer();onApprove()]
+
+[Controlled|+controller: address|Controlled(); onlyController; changeController() onlyController]
+
+[MiniMeTokenFactory| createCloneToken()]
+
+[MiniMeToken|+name: string; +decimals: uint8; +symbol: string;  +version: string; +parentToken: MiniMeToken; +parentSnapShotBlock: uint; +creationBlock: uint; + transfersEnabled: bool; +tokenFactory: MiniMeTokenFactory; | MiniMeToken(); transfer() : bool; transferFrom() : bool; doTransfer() : bool; balanceOf() : uint256 constant ; approve() : bool;  allowance() : uint256 constant; approveAndCall() : bool ; balanceOfAt() : uint constant; totalSupplyAt() : uint constant ; createCloneToken() : address ; generateTokens() : bool onlyController ; destroyTokens() : bool onlyController ; enableTransfers() onlyController ; claimTokens() : onlyController | ClaimedTokens(_token _controller _amount) ; Transfer(_from _to _amount); NewCloneToken(_cloneToken _snapshotBlock); Approval(_owner _spender _amount)]-^[Controlled]
+
+[MyCampaign|+totalCollected : uint256|MyCampaign(); finalizeFunding(); setVault() : onlyOwner]-^[Owned]
+[MyCampaign]-^[TokenController]
+
+[ApproveAndCallFallBack| receiveApproval()]