diff --git a/src/ts/@overflow/commons/core/reflect/class.ts b/src/ts/@overflow/commons/core/reflect/class.ts
index 6918a45..ca3f32e 100644
--- a/src/ts/@overflow/commons/core/reflect/class.ts
+++ b/src/ts/@overflow/commons/core/reflect/class.ts
@@ -89,6 +89,10 @@ export class Class extends AccessibleObject {
     return method;
   }
 
+  public getType(): ClassType {
+    return this._clazzType;
+  }
+
   public getConstructor(): Constructor {
     return this._constructor;
   }
diff --git a/src/ts/@overflow/commons/decorator/constants.ts b/src/ts/@overflow/commons/core/reflect/constants.ts
similarity index 100%
rename from src/ts/@overflow/commons/decorator/constants.ts
rename to src/ts/@overflow/commons/core/reflect/constants.ts
diff --git a/src/ts/@overflow/commons/core/reflect/constructor.ts b/src/ts/@overflow/commons/core/reflect/constructor.ts
index 0911051..f249987 100644
--- a/src/ts/@overflow/commons/core/reflect/constructor.ts
+++ b/src/ts/@overflow/commons/core/reflect/constructor.ts
@@ -1,17 +1,23 @@
 import {
   PropertyKeyType,
+  TypeUtil,
 } from '@overflow/commons/core/type';
 
 import {Class} from './class';
 import {Executable} from './executable';
 
 export class Constructor extends Executable {
+  private _rawConstructor: Function;
 
   public constructor(declaringClazz: Class, parameterTypes: any[]) {
-    super(declaringClazz, parameterTypes);
+    super(declaringClazz, CONSTRUCTOR_NAME, parameterTypes);
+    this._rawConstructor = TypeUtil.getPrototype(declaringClazz.getType())[CONSTRUCTOR_NAME];
   }
 
-  public getName(): PropertyKeyType {
-    return '';
+  public newInstance(...args: any[]): any {
+    let ctor = this.getDeclaringClass().getType();
+    return new (ctor.bind.apply(ctor, [null].concat(args)))();
   }
 }
+
+const CONSTRUCTOR_NAME = 'constructor';
diff --git a/src/ts/@overflow/commons/decorator/decorator.ts b/src/ts/@overflow/commons/core/reflect/decorator.ts
similarity index 93%
rename from src/ts/@overflow/commons/decorator/decorator.ts
rename to src/ts/@overflow/commons/core/reflect/decorator.ts
index 96daf7b..2d841f7 100644
--- a/src/ts/@overflow/commons/decorator/decorator.ts
+++ b/src/ts/@overflow/commons/core/reflect/decorator.ts
@@ -1,12 +1,3 @@
-import {
-  Annotation,
-  Class,
-  Constructor,
-  Field,
-  Method,
-  Parameter,
-} from '@overflow/commons/core/reflect';
-
 import {
   ClassType,
   DecoratorType,
@@ -15,8 +6,14 @@ import {
   TypeUtil,
 } from '@overflow/commons/core/type';
 
-import * as Constants from './constants';
+import {Annotation} from './annotation';
+import {Class} from './class';
+import {Constructor} from './constructor';
+import {Field} from './field';
+import {Method} from './method';
+import {Parameter} from './parameter';
 
+import * as Constants from './constants';
 
 export class Decorator {
   public static create = (AnnotationClass: ClassType<Annotation>) => {
diff --git a/src/ts/@overflow/commons/core/reflect/executable.ts b/src/ts/@overflow/commons/core/reflect/executable.ts
index 6f22c66..8f6a7e8 100644
--- a/src/ts/@overflow/commons/core/reflect/executable.ts
+++ b/src/ts/@overflow/commons/core/reflect/executable.ts
@@ -1,5 +1,6 @@
 import {
   PropertyKeyType,
+  TypeUtil,
 } from '@overflow/commons/core/type';
 
 import {AccessibleObject} from './accessible_object';
@@ -9,20 +10,26 @@ import {Parameter} from './parameter';
 
 export abstract class Executable extends AccessibleObject implements Member {
   private _clazz: Class;
+  private _name: PropertyKeyType;
   private _parameters: Parameter[];
 
-  protected constructor(declaringClazz: Class, parameterTypes: any[]) {
+  protected constructor(declaringClazz: Class, name: PropertyKeyType, parameterTypes: any[]) {
     super();
 
     this._clazz = declaringClazz;
+    this._name = name;
 
     if (null === parameterTypes) {
       return;
     }
+
+    let parameterNames = TypeUtil.getParameterNames(declaringClazz.getType(), name);
     this._parameters = [];
+
     for (let i = 0; i < parameterTypes.length; i++) {
       const parameterType = parameterTypes[i];
-      let parameter: Parameter = new Parameter(this, parameterType, i);
+      const parameterName = parameterNames[i];
+      let parameter: Parameter = new Parameter(this, parameterType, parameterName, i);
       this._parameters.push(parameter);
     }
   }
@@ -31,7 +38,10 @@ export abstract class Executable extends AccessibleObject implements Member {
     return this._clazz;
   }
 
-  public abstract getName(): PropertyKeyType;
+  public getName(): PropertyKeyType {
+    return this._name;
+  }
+
   /**
    * getParameterCount
    */
diff --git a/src/ts/@overflow/commons/core/reflect/index.ts b/src/ts/@overflow/commons/core/reflect/index.ts
index 9e03cf6..528453c 100644
--- a/src/ts/@overflow/commons/core/reflect/index.ts
+++ b/src/ts/@overflow/commons/core/reflect/index.ts
@@ -1,8 +1,9 @@
 export * from './accessible_object';
 export * from './annotated_element';
 export * from './annotation';
-export * from './constructor';
 export * from './class';
+export * from './constructor';
+export * from './decorator';
 export * from './executable';
 export * from './field';
 export * from './member';
diff --git a/src/ts/@overflow/commons/core/reflect/method.ts b/src/ts/@overflow/commons/core/reflect/method.ts
index 8fed933..a612b00 100644
--- a/src/ts/@overflow/commons/core/reflect/method.ts
+++ b/src/ts/@overflow/commons/core/reflect/method.ts
@@ -1,25 +1,26 @@
 import {
   PropertyKeyType,
+  TypeUtil,
 } from '@overflow/commons/core/type';
 
 import {Class} from './class';
 import {Executable} from './executable';
 
 export class Method extends Executable {
-  private _name: PropertyKeyType;
   private _returnType: any;
+  private _rawMethod: Function;
 
   public constructor(declaringClazz: Class, name: PropertyKeyType, parameterTypes: any[], returnType: any) {
-    super(declaringClazz, parameterTypes);
-    this._name = name;
+    super(declaringClazz, name, parameterTypes);
     this._returnType = returnType;
-  }
-
-  public getName(): PropertyKeyType {
-    return this._name;
+    this._rawMethod = TypeUtil.getPrototype(declaringClazz.getType())[name];
   }
 
   public getReturnType(): any {
     return this._returnType;
   }
+
+  public invoke(instance: Object, ...args: any[]): any {
+    return this._rawMethod.apply(instance, args);
+  }
 }
diff --git a/src/ts/@overflow/commons/core/reflect/parameter.ts b/src/ts/@overflow/commons/core/reflect/parameter.ts
index b5c4690..4c7f89e 100644
--- a/src/ts/@overflow/commons/core/reflect/parameter.ts
+++ b/src/ts/@overflow/commons/core/reflect/parameter.ts
@@ -5,11 +5,13 @@ export class Parameter extends AccessibleObject {
   private _executable: Executable;
   private _type: any;
   private _index: number;
+  private _name: string;
 
-  public constructor(executable: Executable, parameterType: any, index: number) {
+  public constructor(executable: Executable, parameterType: any, name: string, index: number) {
     super();
     this._executable = executable;
     this._type = parameterType;
+    this._name = name;
     this._index = index;
   }
 
@@ -21,6 +23,10 @@ export class Parameter extends AccessibleObject {
     return this._type;
   }
 
+  public getName(): string {
+    return this._name;
+  }
+
   public getIndex(): number {
     return this._index;
   }
diff --git a/src/ts/@overflow/commons/core/type/util.ts b/src/ts/@overflow/commons/core/type/util.ts
index 9020cd9..7b588b0 100644
--- a/src/ts/@overflow/commons/core/type/util.ts
+++ b/src/ts/@overflow/commons/core/type/util.ts
@@ -27,6 +27,17 @@ export class TypeUtil {
       return target.prototype ? target : target.constructor;
   }
 
+  /**
+   * Get the provide prototype if target is an instance.
+   * @param target
+   * @returns {*}
+   */
+  public static getPrototype(target: any): Object {
+    return typeof target === 'function'
+        ? target.prototype
+        : target;
+  }
+
   /**
    *
    * @param target
@@ -336,6 +347,28 @@ export class TypeUtil {
     return Object.getOwnPropertyDescriptor(target && target.prototype || target, propertyKey)!;
   }
 
+  /**
+   *
+   * @param target
+   * @param {PropertyKeyType} propertyKey
+   * @returns {string[]}
+   */
+  public static getParameterNames(target: any, propertyKey: PropertyKeyType): string[] {
+    let rawType = TypeUtil.getPrototype(target);
+    let fn: Function = rawType[propertyKey];
+
+    let code = fn.toString()
+                .replace(COMMENTS, '')
+                .replace(FAT_ARROWS, '')
+                .replace(DEFAULT_PARAMS, '');
+
+    let result = code.slice(code.indexOf('(') + 1, code.indexOf(')')).match(/([^\s,]+)/g);
+
+    return result === null
+    ? []
+    : result;
+  }
+
   /**
    *
    * @param target
@@ -406,3 +439,7 @@ export class TypeUtil {
   }
 
 }
+
+const COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
+const DEFAULT_PARAMS = /=[^,]+/mg;
+const FAT_ARROWS = /=>.*$/mg;
diff --git a/src/ts/@overflow/commons/decorator/index.ts b/src/ts/@overflow/commons/decorator/index.ts
deleted file mode 100644
index 6b7a063..0000000
--- a/src/ts/@overflow/commons/decorator/index.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export * from './constants';
-export * from './decorator';
diff --git a/src/ts/@overflow/commons/redux/decorators/action_mapping.ts b/src/ts/@overflow/commons/redux/decorators/action_mapping.ts
index da89782..40a12a1 100644
--- a/src/ts/@overflow/commons/redux/decorators/action_mapping.ts
+++ b/src/ts/@overflow/commons/redux/decorators/action_mapping.ts
@@ -1,5 +1,6 @@
 import {
   Annotation,
+  Decorator,
 } from '@overflow/commons/core/reflect';
 
 import {
@@ -8,18 +9,15 @@ import {
   TypeUtil,
 } from '@overflow/commons/core/type';
 
-import {
-  Decorator,
-} from '@overflow/commons/decorator';
 
 export interface ActionMappingAnnotationAttributes {
-  value: string;
+  value: string[];
 }
 
 export class ActionMappingAnnotation implements Annotation {
   public readonly attributes: ActionMappingAnnotationAttributes;
 
-  public constructor(value: string | ActionMappingAnnotationAttributes) {
+  public constructor(value: string | string[] | ActionMappingAnnotationAttributes) {
 
     if (undefined === value) {
       throw new Error(`value attribute must be specified.`);
@@ -27,7 +25,11 @@ export class ActionMappingAnnotation implements Annotation {
 
     if (TypeUtil.isString(value)) {
       this.attributes = {
-        value: <string>value,
+        value: [<string>value],
+      };
+    } else if (TypeUtil.isArray(value)) {
+      this.attributes = {
+        value: <string[]>value,
       };
     } else {
       this.attributes = <ActionMappingAnnotationAttributes>value;
diff --git a/src/ts/@overflow/commons/redux/decorators/index.ts b/src/ts/@overflow/commons/redux/decorators/index.ts
index 1a99ebd..e05e0ee 100644
--- a/src/ts/@overflow/commons/redux/decorators/index.ts
+++ b/src/ts/@overflow/commons/redux/decorators/index.ts
@@ -1,5 +1,4 @@
 export * from './action_mapping';
-export * from './parameter';
 export * from './reducer';
 export * from './rest_api';
 export * from './rpc_api';
diff --git a/src/ts/@overflow/commons/redux/decorators/parameter.ts b/src/ts/@overflow/commons/redux/decorators/parameter.ts
deleted file mode 100644
index 56b3807..0000000
--- a/src/ts/@overflow/commons/redux/decorators/parameter.ts
+++ /dev/null
@@ -1,43 +0,0 @@
-import {
-  Annotation,
-} from '@overflow/commons/core/reflect';
-
-import {
-  PropertyKeyType,
-  TypeUtil,
-} from '@overflow/commons/core/type';
-
-import {
-  Decorator,
-} from '@overflow/commons/decorator';
-
-export interface ParameterAnnotationAttributes {
-  name?: string;
-}
-
-export class ParameterAnnotation implements Annotation {
-  public readonly attributes: ParameterAnnotationAttributes;
-
-  public constructor(name: string | ParameterAnnotationAttributes) {
-    if (undefined === name) {
-      this.attributes = {
-        name: '',
-      };
-      return;
-    }
-
-    if (TypeUtil.isString(name)) {
-      this.attributes = {
-        name: <string>name,
-      };
-    } else {
-      this.attributes = <ParameterAnnotationAttributes>name;
-    }
-  }
-
-  public parameterDecorator?(target: Object, propertyKey: PropertyKeyType, parameterIndex: number): void {
-    console.log('Parameter');
-  }
-}
-
-export const Parameter = Decorator.create(ParameterAnnotation);
diff --git a/src/ts/@overflow/commons/redux/decorators/reducer.ts b/src/ts/@overflow/commons/redux/decorators/reducer.ts
index 1bb7540..a22721f 100644
--- a/src/ts/@overflow/commons/redux/decorators/reducer.ts
+++ b/src/ts/@overflow/commons/redux/decorators/reducer.ts
@@ -1,5 +1,6 @@
 import {
   Annotation,
+  Decorator,
 } from '@overflow/commons/core/reflect';
 
 import {
@@ -7,9 +8,6 @@ import {
   TypeUtil,
 } from '@overflow/commons/core/type';
 
-import {
-  Decorator,
-} from '@overflow/commons/decorator';
 
 export interface ReducerAnnotationAttributes {
   name?: string;
diff --git a/src/ts/@overflow/commons/redux/decorators/rest_api.ts b/src/ts/@overflow/commons/redux/decorators/rest_api.ts
index 44b00fc..33d7bc8 100644
--- a/src/ts/@overflow/commons/redux/decorators/rest_api.ts
+++ b/src/ts/@overflow/commons/redux/decorators/rest_api.ts
@@ -1,5 +1,6 @@
 import {
   Annotation,
+  Decorator,
 } from '@overflow/commons/core/reflect';
 
 import {
@@ -8,10 +9,6 @@ import {
   TypeUtil,
 } from '@overflow/commons/core/type';
 
-import {
-  Decorator,
-} from '@overflow/commons/decorator';
-
 export interface RestAPIAnnotationAttributes {
   entryPath: string;
 }
diff --git a/src/ts/@overflow/commons/redux/decorators/rpc_api.ts b/src/ts/@overflow/commons/redux/decorators/rpc_api.ts
index 71baf73..18c90f8 100644
--- a/src/ts/@overflow/commons/redux/decorators/rpc_api.ts
+++ b/src/ts/@overflow/commons/redux/decorators/rpc_api.ts
@@ -1,5 +1,6 @@
 import {
   Annotation,
+  Decorator,
 } from '@overflow/commons/core/reflect';
 
 import {
@@ -8,10 +9,6 @@ import {
   TypeUtil,
 } from '@overflow/commons/core/type';
 
-import {
-  Decorator,
-} from '@overflow/commons/decorator';
-
 export interface RpcAPIAnnotationAttributes {
   method: string;
 }
diff --git a/src/ts/@overflow/commons/redux/lpc_reducer.ts b/src/ts/@overflow/commons/redux/lpc_reducer.ts
index 41be2c4..8f46992 100644
--- a/src/ts/@overflow/commons/redux/lpc_reducer.ts
+++ b/src/ts/@overflow/commons/redux/lpc_reducer.ts
@@ -2,6 +2,11 @@
 import {
   ClassType,
 } from '@overflow/commons/core/type';
+
+import {
+  Method,
+} from '@overflow/commons/core/reflect';
+
 import {
   ActionMappingAnnotation,
   ReducerAnnotation,
@@ -64,10 +69,6 @@ export default class LPCReducer {
 
     let reducerMapping: string = null;
     let ama: ActionMappingAnnotation = clazz.getOwnAnnotation(ActionMappingAnnotation);
-    if (undefined !== ama) {
-      reducerMapping = ama.attributes.value;
-    }
-    console.log(`actionMapping-value: ${ama.attributes.value}`);
 
     clazz.getOwnMethods().forEach(method => {
       let restAPIAnnotation: RestAPIAnnotation = method.getOwnAnnotation(RestAPIAnnotation);
@@ -79,6 +80,9 @@ export default class LPCReducer {
         console.log(`restAPI: ${rpcAPIAnnotation.attributes.method}`);
       }
     });
-
   }
+
+  // protected registerReducerMethod(ama: ActionMappingAnnotation, method: Method): void {
+
+  // }
 }
diff --git a/src/ts/@overflow/commons/redux/registry/reducer_registry.ts b/src/ts/@overflow/commons/redux/registry/reducer_registry.ts
deleted file mode 100644
index e69de29..0000000
diff --git a/src/ts/@overflow/modules/member/reducer/member_reducer.ts b/src/ts/@overflow/modules/member/reducer/member_reducer.ts
index 20c0c25..8378b62 100644
--- a/src/ts/@overflow/modules/member/reducer/member_reducer.ts
+++ b/src/ts/@overflow/modules/member/reducer/member_reducer.ts
@@ -1,6 +1,5 @@
 import {
   ActionMapping,
-  Parameter,
   Reducer,
   RestAPI,
 } from '@overflow/commons/redux/decorators';
@@ -8,18 +7,14 @@ import {
 @Reducer()
 @ActionMapping('@overflow/modules/member/MemberReducer')
 export default class MemberReducer {
-  private name: string;
-  public constructor(count: number, @Parameter() name: string) {
-    this.name = name;
-  }
 
   /**
    * signin
    */
   @RestAPI('/account/signin')
   @ActionMapping('/signin')
-  public signin(state: any, @Parameter() result: any, error: any): any {
-
+  public signin(state: any, result: any, error: any): any {
+    console.log(`signin`);
     return state;
   }
 }