diff --git a/annotation/component.go b/annotation/component.go
index f7fde6b..d0bb5f8 100644
--- a/annotation/component.go
+++ b/annotation/component.go
@@ -1,6 +1,12 @@
 package annotation
 
-type Component struct {
-	Names *[]string
-	Scope *ScopeType
+import (
+	"git.loafle.net/commons_go/di"
+)
+
+type ComponentAnnotation struct {
+	Names         []string
+	InitMethod    string // func (receiver interface{}, cr ComponentRegistry) error
+	DestroyMethod string // func (receiver interface{}, cr ComponentRegistry) error
+	Scope         di.ScopeType
 }
diff --git a/annotation/inject.go b/annotation/inject.go
index 730b3d8..027aad8 100644
--- a/annotation/inject.go
+++ b/annotation/inject.go
@@ -1,6 +1,5 @@
 package annotation
 
 type Inject struct {
-	Name     *string
-	Required *bool
+	Name string
 }
diff --git a/annotation/resource.go b/annotation/resource.go
new file mode 100644
index 0000000..d78a905
--- /dev/null
+++ b/annotation/resource.go
@@ -0,0 +1,5 @@
+package annotation
+
+type Resource struct {
+	Name string
+}
diff --git a/annotation/scope.go b/annotation/scope.go
deleted file mode 100644
index dd6dee2..0000000
--- a/annotation/scope.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package annotation
-
-type ScopeType int
-
-const (
-	ScopeTypeSingleton ScopeType = iota
-	ScopeTypeTransiant
-)
diff --git a/constants.go b/constants.go
new file mode 100644
index 0000000..dec394a
--- /dev/null
+++ b/constants.go
@@ -0,0 +1,25 @@
+package di
+
+// `annotation:"@Inject(name? string)"`
+// field 에 적용
+// 1. 타입으로 매칭 없으면 에러 2. 여러개의 타입이 검색되면 그 중에 name으로 매칭
+
+// `annotation:"@Resource(name? string)"`
+// field 에 적용
+// 1. 이름으로 매칭 2. 타입으로 매칭
+// 이름이 지정되지 않으면 field 이름으로 먼저 찾고 없으면 타입으로 매칭
+
+// @Component
+// Component 등록 시에 파라미터로 제공
+// names []string
+// initMethod string
+// destroyMethod string
+// scope enum singleton, transiant
+
+type ScopeType int
+
+const (
+	ScopeTypeDefault ScopeType = iota // == ScopeTypeSingleton
+	ScopeTypeSingleton
+	ScopeTypeTransiant
+)
diff --git a/ex b/ex
deleted file mode 100644
index b6e6ef9..0000000
--- a/ex
+++ /dev/null
@@ -1,112 +0,0 @@
-package main
-
-import (
-	"errors"
-	"fmt"
-	"log"
-	"reflect"
-
-	"git.loafle.net/prototype/reflection/service"
-)
-
-func main() {
-	var err error
-	r := &Registry{}
-	// if err = r.RegisterType(&Dao{}); nil != err {
-	// 	log.Printf("%v \n", err)
-	// }
-	if err = r.RegisterType(reflect.TypeOf((*service.MemberService)(nil))); nil != err {
-		log.Printf("%v \n", err)
-	}
-	// if err = r.RegisterType(&prsu.UserService{}); nil != err {
-	// 	log.Printf("%v \n", err)
-	// }
-	// if err = r.RegisterType(prsu.UserService{}); nil != err {
-	// 	log.Printf("%v \n", err)
-	// }
-	// if err = r.RegisterFactory(NewService); nil != err {
-	// 	log.Printf("%v \n", err)
-	// }
-
-	// if err = r.RegisterType(&Controller{}); nil != err {
-	// 	log.Printf("%v \n", err)
-	// }
-
-}
-
-func NewService() *Service {
-	return &Service{}
-}
-
-type Registry struct {
-}
-
-func (r *Registry) RegisterType(t reflect.Type) error {
-	// t := reflect.TypeOf(s)
-	if nil == t {
-		return errors.New("can't provide an untyped nil")
-	}
-
-	if !IsType(t, reflect.Struct) {
-		return fmt.Errorf("must provide struct, got %v", t)
-	}
-
-	name, rt := GetTypeName(t)
-	log.Printf("The name of Type: %s", name)
-
-	fN := rt.NumField()
-	for i := 0; i < fN; i++ {
-		f := rt.Field(i)
-		log.Printf("The PkgPath: %s", f.PkgPath)
-		log.Printf("The field[%s] of [%s] is pointer :%v", f.Name, name, f.Type.Kind() == reflect.Ptr)
-		log.Printf("The tag of [%s.%s]: %s", name, f.Name, f.Tag.Get("annotation"))
-	}
-
-	return nil
-}
-
-// func (r *Registry) RegisterFactory(s interface{}) error {
-// 	t := reflect.TypeOf(s)
-// 	if nil == t {
-// 		return errors.New("can't provide an untyped nil")
-// 	}
-
-// 	if !IsType(t, reflect.Func) {
-// 		return fmt.Errorf("must provide constructor function, got %v (type %v)", s, t)
-// 	}
-
-// 	log.Printf("The name of Type: %s", GetTypeName(t))
-// 	log.Printf("The name of Type: %v", t.IsVariadic())
-// 	log.Printf("The name of Type: %s", t.PkgPath())
-// 	log.Printf("The name of Type: %s", GetTypeName(t.Out(0)))
-
-// 	return nil
-// }
-
-type Controller struct {
-	service       *Service               `annotation:"transiant:singleton"`
-	MemberService *service.MemberService `annotation:"transiant:singleton"`
-}
-
-type Service struct {
-	Dao *Dao `annotation:"transiant:singleton"`
-}
-
-type Dao struct {
-}
-
-func IsType(t reflect.Type, kind reflect.Kind) bool {
-	if reflect.Ptr == t.Kind() {
-		return IsType(t.Elem(), kind)
-	}
-
-	return kind == t.Kind()
-}
-
-func GetTypeName(t reflect.Type) (string, reflect.Type) {
-	if reflect.Ptr == t.Kind() {
-		return GetTypeName(t.Elem())
-	}
-
-	return fmt.Sprintf("%s/%s", t.PkgPath(), t.Name()), t
-}
diff --git a/registry/definition.go b/registry/definition.go
index afe057a..8df8cfb 100644
--- a/registry/definition.go
+++ b/registry/definition.go
@@ -2,27 +2,9 @@ package registry
 
 import "reflect"
 
-type typeDefinition struct {
-	pkgName    string
-	typeName   string
-	targetType reflect.Type
-	realType   reflect.Type
-
-	fields map[string]
+type ComponentDefinition struct {
+	PkgName  string
+	TypeName string
+	Type     reflect.Type
+	RealType reflect.Type
 }
-
-type fieldDefinition struct {
-	pkgName    string
-	typeName   string
-	targetType reflect.Type
-	realType   reflect.Type
-	
-}
-
-type Service struct {
-	DAO *DAO `di-annotation:""`
-}
-
-type DAO struct {
-
-}
\ No newline at end of file
diff --git a/registry/registry.go b/registry/registry.go
index 179cc66..10df00b 100644
--- a/registry/registry.go
+++ b/registry/registry.go
@@ -4,22 +4,25 @@ import (
 	"fmt"
 	"reflect"
 
+	cda "git.loafle.net/commons_go/di/annotation"
 	cdur "git.loafle.net/commons_go/di/util/reflect"
 )
 
 type ComponentRegistry interface {
-	RegisterType(t reflect.Type, name string) error
-	RegisterFactory(i interface{}) error
+	RegisterType(t reflect.Type, ca *cda.ComponentAnnotation) error
+	RegisterFactory(i interface{}, ca *cda.ComponentAnnotation) error
 
 	GetInstance(t reflect.Type) (interface{}, error)
 	GetInstanceByName(name string) (interface{}, error)
 }
 
 type defaultComponentRegistry struct {
-	definitions map[string]reflect.Type
+	definitionsByType map[reflect.Type]*ComponentDefinition
+
+	definitionByName map[string]*ComponentDefinition
 }
 
-func (cr *defaultComponentRegistry) RegisterType(t reflect.Type, name string) error {
+func (cr *defaultComponentRegistry) RegisterType(t reflect.Type, ca *cda.ComponentAnnotation) error {
 	if nil == t {
 		return fmt.Errorf("DI: t[reflect.Type] is nil")
 	}
@@ -27,18 +30,21 @@ func (cr *defaultComponentRegistry) RegisterType(t reflect.Type, name string) er
 		return fmt.Errorf("DI: t[reflect.Type] must be specified but is %v", t)
 	}
 
-	rt, pkgName, tName := cdur.GetTypeName(t, true)
+	rt, pkgName, tName := cdur.GetTypeName(t)
 	cr.definitions[name] = rt
 
 	return nil
 }
 
-func (cr *defaultComponentRegistry) RegisterFactory(i interface{}) error {
-
-	return nil
-}
-
 func (cr *defaultComponentRegistry) GetInstance(t reflect.Type) (interface{}, error) {
+	if nil == t {
+		return nil, fmt.Errorf("DI: t[reflect.Type] is nil")
+	}
+
+	cd, ok := cr.definitionsByType[t]
+	if !ok {
+		cd = cr.buildDefinition(t)
+	}
 
 	return nil, nil
 }
@@ -47,3 +53,18 @@ func (cr *defaultComponentRegistry) GetInstanceByName(name string) (interface{},
 
 	return nil, nil
 }
+
+func (cr *defaultComponentRegistry) buildDefinition(t reflect.Type) (*ComponentDefinition, error) {
+	if nil == t {
+		return nil, fmt.Errorf("DI: t[reflect.Type] is nil")
+	}
+
+	rt, pkgName, tName := cdur.GetTypeName(t)
+	cd := &ComponentDefinition{}
+	cd.PkgName = pkgName
+	cd.TypeName = tName
+	cd.Type = t
+	cd.RealType = rt
+
+	return nil, nil
+}