--- a/addressbook.class.php	Tue Oct 25 23:56:28 2011 +0200
+++ b/addressbook.class.php	Wed Oct 26 00:15:59 2011 +0200
@@ -1,11 +1,11 @@
 <?
-interface AdressBook_Interface {
+interface Address_Book {
     public function get_entries();
     public function search_entries($pattern);
     public function add_entry($entry);
 }
 
-class AddressBook implements AdressBook_Interface {
+class Address_Book_File implements Address_Book {
 
     const RS = "\n";
     const FS = "\t";