diff --git a/config/db-schema.json b/config/db-schema.json
new file mode 100644
index 0000000..19c154f
--- /dev/null
+++ b/config/db-schema.json
@@ -0,0 +1,125 @@
+{
+
+    "warehouse": {
+        "id_warehouse":  { "type": "int",         "primary": true, "auto_increment": true },
+        "name":          { "type": "varchar(30)"                                          },
+        "theme":         { "type": "varchar(6)"                                           },
+        "password":      { "type": "varchar(128)"                                         },
+        "token":         { "type": "varchar(128)"                                         }
+    },
+
+    "admin": {
+        "id_admin":      { "type": "int",         "primary": true, "auto_increment": true },
+        "@id_warehouse": { "type": "int",         "ref": [ "warehouse", "id_warehouse" ]  },
+        "username":      { "type": "varchar(30)"                                          },
+        "mail":          { "type": "varchar(50)"                                          },
+        "password":      { "type": "varchar(128)"                                         },
+        "token":         { "type": "varchar(128)"                                         }
+    },
+
+    "user": {
+        "id_user":       { "type": "int",         "primary": true, "auto_increment": true },
+        "#id_warehouse": { "type": "int",         "ref": [ "warehouse", "id_warehouse" ]  },
+        "code":          { "type": "varchar(20)"                                          },
+        "username":      { "type": "varchar(30)"                                          },
+        "firstname":     { "type": "varchar(30)"                                          },
+        "lastname":      { "type": "varchar(30)"                                          },
+        "mail":          { "type": "varchar(50)"                                          }
+    },
+
+    "machine": {
+        "id_machine":    { "type": "int",         "primary": true, "auto_increment": true },
+        "#id_warehouse": { "type": "int",         "ref": [ "warehouse", "id_warehouse" ]  },
+        "name":          { "type": "varchar(30)"                                          },
+        "token":         { "type": "varchar(128)"                                         },
+        "unlock_code":   { "type": "varchar(128)"                                         },
+        "ap":            { "type": "varchar(30)"                                          },
+        "ip":            { "type": "varchar(16)"                                          }
+    },
+
+    "user_cluster": {
+        "id_user_cluster": { "type": "int",         "primary": true, "auto_increment": true },
+        "#id_warehouse":   { "type": "int",         "ref": [ "warehouse", "id_warehouse" ]  },
+        "name":            { "type": "varchar(30)"                                          }
+    },
+
+    "machine_cluster": {
+        "id_machine_cluster": { "type": "int",         "primary": true, "auto_increment": true },
+        "#id_warehouse":      { "type": "int",         "ref": [ "warehouse", "id_warehouse" ]  },
+        "name":               { "type": "varchar(30)"                                          }
+    },
+
+    "user_cluster_merge": {
+        "id_user_cluster_merge": { "type": "int",         "primary": true, "auto_increment": true       },
+        "#id_user_cluster":      { "type": "int",         "ref": [ "user_cluster", "id_user_cluster" ]  },
+        "#id_user":              { "type": "int",         "ref": [ "user", "id_user" ]                  }
+    },
+
+    "machine_cluster_merge": {
+        "id_machine_cluster_merge": { "type": "int",         "primary": true, "auto_increment": true       },
+        "#id_machine_cluster":      { "type": "int",         "ref": [ "machine_cluster", "id_machine_cluster" ]  },
+        "#id_machine":              { "type": "int",         "ref": [ "machine", "id_machine" ]                  }
+    },
+
+    "module": {
+        "id_module": { "type": "int",         "primary": true, "auto_increment": true },
+        "name":      { "type": "varchar(50)"                                          }
+    },
+
+    "module_merge": {
+        "#id_warehouse": { "type": "int", "ref": [ "warehouse", "id_warehouse" ] },
+        "#id_module":    { "type": "int", "ref": [ "module",    "id_module"    ] }
+    },
+
+    "chip": {
+        "id_chip":    { "type": "int",         "primary": true, "auto_increment": true },
+        "#id_module": { "type": "int",         "ref": [ "module",    "id_module"    ]  },
+        "name":       { "type": "varchar(20)"                                          },
+        "position":   { "type": "int"                                                  },
+        "type":       { "type": "varchar(10)"                                          }
+    },
+
+    "global_state": {
+        "id_global_state": { "type": "int",         "primary": true, "auto_increment": true },
+        "global_state":    { "type": "varchar(20)"                                          },
+        "chips":           { "type": "varchar(30)"                                          }
+    },
+
+    "pin_merge": {
+        "id_pin_merge": { "type": "int",        "primary": true, "auto_increment": true },
+        "#id_chip":     { "type": "int",        "ref": [ "chip", "id_chip" ]            },
+        "pin":          { "type": "int"                                                 },
+        "type":         { "type": "varchar(30)"                                         }
+    },
+
+    "state": {
+        "id_state":      { "type": "int",        "primary": true, "auto_increment": true           },
+        "#id_pin_merge": { "type": "int",        "ref": [ "pin_merge", "id_pin_merge" ]            },
+        "state":         { "type": "varchar(1)"                                                    },
+        "value":         { "type": "int"                                                           }
+    },
+
+    "action": {
+        "id_action": { "type": "int",        "primary": true, "auto_increment": true },
+        "name":      { "type": "varchar(30)"                                         },
+        "timeout":   { "type": "int"                                                 },
+        "previous":  { "type": "varchar(20)"                                         },
+        "action":    { "type": "varchar(20)"                                         }
+    },
+
+    "action_merge": {
+        "id_action_merge": { "type": "int", "primary": true, "auto_increment": true            },
+        "#id_target":      { "type": "int", "ref": [ "machine_cluster", "id_machine_cluster" ] },
+        "#id_source":      { "type": "int", "ref": [ "user_cluster",    "id_user_cluster" ]    },
+        "#id_action":      { "type": "int", "ref": [ "action",          "id_action" ]          }
+    },
+
+    "history": {
+        "id_history":  { "type": "int", "primary": true, "auto_increment": true },
+        "timestamp":   { "type": "int"                                          },
+        "#id_user":    { "type": "int", "ref": [ "user",    "id_user" ]         },
+        "#id_machine": { "type": "int", "ref": [ "machine", "id_machine" ]      },
+        "#id_action":  { "type": "int", "ref": [ "action",  "id_action" ]       }
+    }
+
+}
\ No newline at end of file