diff --git a/entity/entity.go b/entity/entity.go
index f1f0396..9c99501 100644
--- a/entity/entity.go
+++ b/entity/entity.go
@@ -2,12 +2,15 @@ package entity
 
 import "github.com/google/uuid"
 
+//ID entity ID
 type ID = uuid.UUID
 
+//NewID create a new entity ID
 func NewID() ID {
 	return ID(uuid.New())
 }
 
+//StringToID convert a string to an entity ID
 func StringToID(s string) (ID, error) {
 	id, err := uuid.Parse(s)
 	return ID(id), err
diff --git a/entity/user.go b/entity/user.go
index 963da6a..fbb8a9e 100644
--- a/entity/user.go
+++ b/entity/user.go
@@ -79,7 +79,7 @@ func (u *User) Validate() error {
 	return nil
 }
 
-//ValidatePassword
+//ValidatePassword validate user password
 func (u *User) ValidatePassword(p string) error {
 	err := bcrypt.CompareHashAndPassword([]byte(u.Password), []byte(p))
 	if err != nil {