Edit in JSFiddle

<div ng-controller="myCtrl">
  <my-directive author="author"></my-directive>
</div>

var myApp = angular.module('myApp', []);

myApp.controller('myCtrl', ['$scope', function ($scope) {
  $scope.author = {
  	name: 'hyunseob',
    age: 27
  };
}]);

myApp.directive('myDirective', function() {
  return {
    restrict: 'E',
    scope: {
    	author: "="
    },
    template: '<div>My name is {{ author.name }}.</div><div>{{ author.age }} years old.</div>',
    link: function(scope) {
      scope.data = 'BBB';
    }
  }
});