diff --git a/src/schema/OldSchema.php b/src/schema/OldSchema.php
index 8472085..f5d98b2 100644
--- a/src/schema/OldSchema.php
+++ b/src/schema/OldSchema.php
@@ -1,13 +1,6 @@
 <?php
 namespace nur\sery\schema;
 
-use nur\sery\schema\input\Input;
-use nur\sery\schema\values\AssocValue;
-use nur\sery\schema\values\IValue;
-use nur\sery\schema\values\ScalarValue;
-use nur\sery\schema\values\ListValue;
-use nulib\StateException;
-
 class OldSchema {
   /**
    * @var bool true si toutes les clés du schéma doivent exister, avec leur
@@ -26,38 +19,4 @@ class OldSchema {
 
   function ensureSchema(&$value, $key=null, ?array $params=null): void {
   }
-
-  /** retourner true si la valeur est scalaire */
-  function getScalar(&$value, $key=null, ?ScalarValue &$scalar=null): bool {
-    if (!$this->isScalar()) return false;
-    if ($value instanceof Input) $input = $value;
-    else $input = new Input($value);
-    $scalar = new ScalarValue($input, $this->schema, $key);
-    return true;
-  }
-
-  /** retourner true la valeur est un tableau séquentiel */
-  function getList(&$value, $key=null, ?ListValue &$list=null): bool {
-    if (!$this->isSeq()) return false;
-    if ($value instanceof Input) $input = $value;
-    else $input = new Input($value);
-    $list = new ListValue($input, $this->schema, $key);
-    return true;
-  }
-
-  /** retourner true la valeur est un tableau associatif */
-  function getAssoc(&$value, $key=null, ?AssocValue &$assoc=null): bool {
-    if (!$this->isAssoc()) return false;
-    if ($value instanceof Input) $input = $value;
-    else $input = new Input($value);
-    $assoc = new AssocValue($input, $this->schema, $key);
-    return true;
-  }
-
-  function getValue(&$value, $key=null): IValue {
-    if ($this->getScalar($value, $key, $scalar)) return $scalar;
-    elseif ($this->getList($value, $key, $seq)) return $seq;
-    elseif ($this->getAssoc($value, $key, $assoc)) return $assoc;
-    else throw StateException::unexpected_state();
-  }
 }