diff --git a/package.json b/package.json
index 314f4f8..aa6b365 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,7 @@
     "protractor": "~5.1.2",
     "ts-node": "~4.1.0",
     "tslint": "~5.9.1",
-    "typescript": "~2.5.3"
+    "typescript": "~2.5.3",
+    "typescript-string-enums": "^0.3.5"
   }
 }
diff --git a/src/app/app-store.module.ts b/src/app/app-store.module.ts
index bbb2785..565c473 100644
--- a/src/app/app-store.module.ts
+++ b/src/app/app-store.module.ts
@@ -12,20 +12,15 @@ import { combineReducers, ActionReducer, ActionReducerMap, MetaReducer } from '@
 import { SimpleRouterStateSerializer } from './commons/util/ngrx/router-store/serializer/simple-router-state-serializer';
 
 import { environment } from '../environments/environment';
-import { EFFECTS } from './commons/store';
+import * as AppStore from './commons/store';
 
-export interface AppState {
-}
-
-export const reducers: ActionReducerMap<AppState> = {
-};
 
 @NgModule({
   exports: [
     StoreModule,
   ],
   imports: [
-    StoreModule.forRoot(reducers),
+    StoreModule.forRoot(AppStore.REDUCERS),
     /**
      * @ngrx/router-store keeps router state up-to-date in the store.
      */
@@ -51,7 +46,7 @@ export const reducers: ActionReducerMap<AppState> = {
       maxAge: 50,
       logOnly: environment.production,
     }),
-    EffectsModule.forRoot(EFFECTS),
+    EffectsModule.forRoot(AppStore.EFFECTS),
   ],
   providers: [
     /**
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 26e2411..8abd564 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -30,6 +30,8 @@ import { AppComponent } from './app.component';
 import { environment } from '../environments/environment';
 import { RPCService } from './commons/service/rpc.service';
 import { RESTService } from './commons/service/rest.service';
+
+
 import { AuthGuard } from './commons/guard/auth.guard';
 
 
@@ -60,6 +62,7 @@ import { AuthGuard } from './commons/guard/auth.guard';
     {
       provide: RPCClient, useClass: RPCService
     },
+
     CookieService,
     AuthGuard,
   ],
diff --git a/src/app/commons/service/rpc.service.ts b/src/app/commons/service/rpc.service.ts
index 340e23b..7febfb0 100644
--- a/src/app/commons/service/rpc.service.ts
+++ b/src/app/commons/service/rpc.service.ts
@@ -1,4 +1,5 @@
 import { Injectable, Inject } from '@angular/core';
+import { Store, select } from '@ngrx/store';
 
 import { Observable } from 'rxjs/Observable';
 import { Subject } from 'rxjs/Subject';
@@ -6,6 +7,11 @@ import { Subject } from 'rxjs/Subject';
 import { RPCClient } from 'packages/core/rpc/client/RPCClient';
 import { RPCClientCodec } from 'packages/core/rpc/protocol/RPCClientCodec';
 import { RPCClientRWC } from 'packages/core/rpc/client/rwc/RPCClientRWC';
+import { RPCClientNotificationCodec } from 'packages/core/rpc/protocol/RPCClientCodec';
+
+import { notificationAction } from 'packages/core/rpc/store/notification';
+
+import * as AppStore from '../store';
 
 
 @Injectable()
@@ -13,7 +19,12 @@ export class RPCService extends RPCClient {
   constructor(
     private _rpcClientCodec: RPCClientCodec,
     private _rpcClientRWC: RPCClientRWC,
+    private store: Store<AppStore.State>,
   ) {
     super(_rpcClientCodec, _rpcClientRWC);
   }
+
+  protected onNotification(notiCodec: RPCClientNotificationCodec): void {
+    this.store.dispatch(notificationAction(notiCodec.method(), notiCodec.params()));
+  }
 }
diff --git a/src/app/commons/store/index.ts b/src/app/commons/store/index.ts
index b5f3921..64ea21e 100644
--- a/src/app/commons/store/index.ts
+++ b/src/app/commons/store/index.ts
@@ -1,5 +1,13 @@
+import { ActionReducerMap } from '@ngrx/store';
+
 import * as SigninInitStore from './signin-init';
 
+export interface State {
+}
+
+export const REDUCERS: ActionReducerMap<State> = {
+};
+
 export const EFFECTS = [
   SigninInitStore.Effects,
 ];
diff --git a/src/packages/core/rpc/client/RPCClient.ts b/src/packages/core/rpc/client/RPCClient.ts
index f436d46..3758ea1 100644
--- a/src/packages/core/rpc/client/RPCClient.ts
+++ b/src/packages/core/rpc/client/RPCClient.ts
@@ -2,15 +2,19 @@ import { Observable } from 'rxjs/Observable';
 import { Subject } from 'rxjs/Subject';
 
 import { RPCClientRWC } from './rwc/RPCClientRWC';
-import { RPCRegistry } from './../registry/RPCRegistry';
-import { RPCClientCodec, RPCClientResponseCodec } from '../protocol/RPCClientCodec';
+
+import {
+  RPCClientCodec,
+  RPCClientResponseCodec,
+  RPCClientNotificationCodec,
+} from '../protocol/RPCClientCodec';
 
 export interface RPCRequestState {
   subject: Subject<any>;
   request: any;
 }
 
-export class RPCClient {
+export abstract class RPCClient {
   private _requestID: number;
 
   private _pendingRequestsCount: number;
@@ -56,15 +60,15 @@ export class RPCClient {
   /**
    * notify
    */
-  public notify(method: string, ...args: any[]): void {
-    this.send(false, method, args);
+  public send(method: string, ...args: any[]): void {
+    this.sendInternal(false, method, args);
   }
 
   /**
    * call
    */
   public call<T>(method: string, ...args: any[]): Observable<T> {
-    return this.send<T>(true, method, args);
+    return this.sendInternal<T>(true, method, args);
   }
 
   /**
@@ -75,7 +79,7 @@ export class RPCClient {
     return undefined;
   }
 
-  private send<T>(hasResponse: boolean, method: string, args?: any[]): Observable<T> | undefined {
+  private sendInternal<T>(hasResponse: boolean, method: string, args?: any[]): Observable<T> | undefined {
     let id: number;
     let resSubject: Subject<T>;
     if (hasResponse) {
@@ -95,7 +99,10 @@ export class RPCClient {
 
   private onMessage(message: Object): void {
     const resCodec = this._codec.response(message);
-    if (undefined !== resCodec.id()) {
+
+    if (resCodec.isNotification()) {
+      this.onNotification(resCodec.notification());
+    } else {
       this.onResponse(resCodec);
     }
   }
@@ -116,4 +123,6 @@ export class RPCClient {
       resSubject.error(error);
     }
   }
+
+  protected abstract onNotification(notiCodec: RPCClientNotificationCodec): void;
 }
diff --git a/src/packages/core/rpc/protocol/RPCClientCodec.ts b/src/packages/core/rpc/protocol/RPCClientCodec.ts
index 61ace58..e5de713 100644
--- a/src/packages/core/rpc/protocol/RPCClientCodec.ts
+++ b/src/packages/core/rpc/protocol/RPCClientCodec.ts
@@ -9,4 +9,12 @@ export abstract class RPCClientResponseCodec {
   abstract id(): number | undefined;
   abstract error(): RPCError | undefined;
   abstract result(): any | undefined;
+
+  abstract isNotification(): boolean;
+  abstract notification(): RPCClientNotificationCodec | undefined;
+}
+
+export abstract class RPCClientNotificationCodec {
+  public abstract method(): string;
+  public abstract params(): any | undefined;
 }
diff --git a/src/packages/core/rpc/protocol/json/RPCClientJSONCodec.ts b/src/packages/core/rpc/protocol/json/RPCClientJSONCodec.ts
index 1ea9cab..d87534b 100644
--- a/src/packages/core/rpc/protocol/json/RPCClientJSONCodec.ts
+++ b/src/packages/core/rpc/protocol/json/RPCClientJSONCodec.ts
@@ -1,12 +1,18 @@
 import {
   RPCClientCodec,
   RPCClientResponseCodec,
+  RPCClientNotificationCodec,
 } from '../RPCClientCodec';
 
 import {
   RPCError,
 } from '../../error';
 
+export interface ClientNotification {
+  method: string;
+  params?: any[];
+}
+
 export interface ClientRequest {
   jsonrpc: string;
   method: string;
@@ -56,4 +62,35 @@ export class RPCClientJSONResponseCodec extends RPCClientResponseCodec {
   public result(): any | undefined {
     return this._res.result;
   }
+
+  public isNotification(): boolean {
+    if (undefined !== this.id() || undefined === this.result()) {
+      return false;
+    }
+    return true;
+  }
+
+  public notification(): RPCClientNotificationCodec | undefined {
+    if (undefined !== this.id() || undefined === this.result()) {
+      return undefined;
+    }
+    const _noti: ClientNotification = {
+      method: this._res.result.method,
+      params: this._res.result.params,
+    };
+    return new RPCClientJSONNotificationCodec(_noti);
+  }
+}
+
+export class RPCClientJSONNotificationCodec extends RPCClientNotificationCodec {
+  public constructor(private _noti: ClientNotification) {
+    super();
+  }
+
+  public method(): string {
+    return this._noti.method;
+  }
+  public params(): any[] | undefined {
+    return this._noti.params;
+  }
 }
diff --git a/src/packages/core/rpc/registry/RPCInvoker.ts b/src/packages/core/rpc/registry/RPCInvoker.ts
deleted file mode 100644
index aadf8e2..0000000
--- a/src/packages/core/rpc/registry/RPCInvoker.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-
-export class RPCInvoker {
-
-  /**
-   * hasMethod
-   */
-  public hasMethod(method: string): boolean {
-    return false;
-  }
-
-  /**
-   * invoke
-   */
-  public invoke() {
-
-  }
-}
diff --git a/src/packages/core/rpc/registry/RPCRegistry.ts b/src/packages/core/rpc/registry/RPCRegistry.ts
deleted file mode 100644
index 074572b..0000000
--- a/src/packages/core/rpc/registry/RPCRegistry.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import { RPCInvoker } from './RPCInvoker';
-
-export class RPCRegistry extends RPCInvoker {
-
-  /**
-   * registerService
-   */
-  public registerService<T>(receiver: T, name: string) {
-
-  }
-
-  /**
-   * getService
-   */
-  public getService<T>(name: string): T {
-    return undefined;
-  }
-}
diff --git a/src/packages/core/rpc/store/notification/index.ts b/src/packages/core/rpc/store/notification/index.ts
new file mode 100644
index 0000000..2bf53bc
--- /dev/null
+++ b/src/packages/core/rpc/store/notification/index.ts
@@ -0,0 +1 @@
+export * from './notification.action';
diff --git a/src/packages/core/rpc/store/notification/notification.action.ts b/src/packages/core/rpc/store/notification/notification.action.ts
new file mode 100644
index 0000000..a322323
--- /dev/null
+++ b/src/packages/core/rpc/store/notification/notification.action.ts
@@ -0,0 +1,18 @@
+import { Action } from '@ngrx/store';
+
+export interface NotificationAction extends Action {
+  payload?: any;
+}
+
+export function notificationActionEnum(method: string): string {
+  return `[@@NOTIFICATION] ${method}`;
+}
+
+export function notificationAction(method: string, params: any): Action {
+  const action: NotificationAction = {
+    type: notificationActionEnum(method),
+    payload: params,
+  };
+  return action;
+}
+
diff --git a/src/packages/discovery/model/DiscoveryHost.ts b/src/packages/discovery/model/DiscoveryHost.ts
new file mode 100644
index 0000000..9c04c20
--- /dev/null
+++ b/src/packages/discovery/model/DiscoveryHost.ts
@@ -0,0 +1,10 @@
+import { DiscoveryPort } from './DiscoveryPort';
+
+export interface DiscoveryHost {
+  firstScanRange: string;
+  lastScanRange: string;
+  excludeHosts: string[];
+  includeHosts: string[];
+
+  discoveryPort: DiscoveryPort;
+}
diff --git a/src/packages/discovery/model/DiscoveryPort.ts b/src/packages/discovery/model/DiscoveryPort.ts
new file mode 100644
index 0000000..0320c47
--- /dev/null
+++ b/src/packages/discovery/model/DiscoveryPort.ts
@@ -0,0 +1,11 @@
+import { DiscoveryService } from './DiscoveryService';
+
+export interface DiscoveryPort {
+  firstScanRange: number;
+  lastScanRange: number;
+  excludePorts: number[];
+  includeTCP: boolean;
+  includeUDP: boolean;
+
+  discoveryService: DiscoveryService;
+}
diff --git a/src/packages/discovery/model/DiscoveryService.ts b/src/packages/discovery/model/DiscoveryService.ts
new file mode 100644
index 0000000..96ffe70
--- /dev/null
+++ b/src/packages/discovery/model/DiscoveryService.ts
@@ -0,0 +1,3 @@
+export interface DiscoveryService {
+  includeServices: string[];
+}
diff --git a/src/packages/discovery/model/DiscoveryZone.ts b/src/packages/discovery/model/DiscoveryZone.ts
new file mode 100644
index 0000000..d3aba60
--- /dev/null
+++ b/src/packages/discovery/model/DiscoveryZone.ts
@@ -0,0 +1,7 @@
+import { DiscoveryHost } from './DiscoveryHost';
+
+export interface DiscoveryZone {
+  excludePatterns: string[];
+
+  discoveryHost: DiscoveryHost;
+}
diff --git a/src/packages/discovery/model/Host.ts b/src/packages/discovery/model/Host.ts
index 3783f60..2d358ea 100644
--- a/src/packages/discovery/model/Host.ts
+++ b/src/packages/discovery/model/Host.ts
@@ -1,16 +1,13 @@
-import Port from './Port';
-import Zone from './Zone';
+import { Zone } from './Zone';
+import { Port } from './Port';
 
-interface Host {
+export interface Host {
     id?: number;
-    ip: number;
+    ip: string;
     mac: number;
-    createDate?: Date;
-    updateDate: Date;
     os: string;
-    target: boolean;
-    ports?: Port[];
+    discoveredDate?: Date;
     zone?: Zone;
-}
 
-export default Host;
+    ports: Map<number, Port> | null;
+}
diff --git a/src/packages/discovery/model/Port.ts b/src/packages/discovery/model/Port.ts
index 8302d4d..6f6dbda 100644
--- a/src/packages/discovery/model/Port.ts
+++ b/src/packages/discovery/model/Port.ts
@@ -1,15 +1,13 @@
-import Host from './Host';
-import Service from './Service';
-import PortType from './PortType';
+import { Host } from './Host';
+import { PortType } from './PortType';
+import { Service } from './Service';
 
-interface Port {
+export interface Port {
     id?: number;
-    host: Host;
     portType: PortType;
     portNumber: number;
-    services?: Service[];
-    createDate?: Date;
-    updateDate: Date;
-}
+    discoveredDate?: Date;
+    host: Host;
 
-export default Port;
+    services: Map<string, Service> | null;
+}
diff --git a/src/packages/discovery/model/PortType.ts b/src/packages/discovery/model/PortType.ts
index 26c1130..6b864bf 100644
--- a/src/packages/discovery/model/PortType.ts
+++ b/src/packages/discovery/model/PortType.ts
@@ -5,6 +5,4 @@
 //     TLS = 3,
 // }
 
-type PortType = 'TCP' | 'UDP' | 'TLS';
-
-export default PortType;
+export type PortType = 'TCP' | 'UDP' | 'TLS';
diff --git a/src/packages/discovery/model/Service.ts b/src/packages/discovery/model/Service.ts
index 2297bc4..2549d06 100644
--- a/src/packages/discovery/model/Service.ts
+++ b/src/packages/discovery/model/Service.ts
@@ -1,14 +1,9 @@
-import Port from './Port';
-import PortType from './PortType';
+import { Port } from './Port';
 
-interface Service {
+export interface Service {
     id: number;
-    port: Port;
-    portType: PortType;
+    cryptoType: string;
     serviceName: string;
-    createDate: Date;
-    updateDate: Date;
-    target: boolean;
+    discoveredDate?: Date;
+    port: Port;
 }
-
-export default Service;
diff --git a/src/packages/discovery/model/Zone.ts b/src/packages/discovery/model/Zone.ts
index c60435b..6eaa24b 100644
--- a/src/packages/discovery/model/Zone.ts
+++ b/src/packages/discovery/model/Zone.ts
@@ -1,4 +1,4 @@
-import Host from './Host';
+import { Host } from './Host';
 
 export interface Zone {
   id?: number;
@@ -6,9 +6,7 @@ export interface Zone {
   ip?: string;
   iface?: string;
   mac?: string;
-  firstScanRange?: number;
-  lastScanRange?: number;
-  hosts?: Host[];
-}
+  discoveredDate?: Date;
 
-export default Zone;
+  hosts: Map<string, Host> | null;
+}
diff --git a/src/packages/discovery/model/index.ts b/src/packages/discovery/model/index.ts
index c59956a..c2583d5 100644
--- a/src/packages/discovery/model/index.ts
+++ b/src/packages/discovery/model/index.ts
@@ -1,3 +1,7 @@
+export * from './DiscoveryHost';
+export * from './DiscoveryPort';
+export * from './DiscoveryService';
+export * from './DiscoveryZone';
 export * from './DiscoveryStartInfo';
 export * from './Host';
 export * from './Port';
diff --git a/src/packages/discovery/service/discovery.service.ts b/src/packages/discovery/service/discovery.service.ts
index 82d1026..ab229e0 100644
--- a/src/packages/discovery/service/discovery.service.ts
+++ b/src/packages/discovery/service/discovery.service.ts
@@ -1,7 +1,17 @@
 import { Injectable } from '@angular/core';
 import { Observable } from 'rxjs/Observable';
 import { RPCClient } from 'packages/core/rpc/client/RPCClient';
-import { DiscoveryStartInfo } from '../model';
+import {
+  DiscoveryStartInfo,
+  DiscoveryZone,
+  DiscoveryHost,
+  DiscoveryPort,
+  DiscoveryService as M_DiscoveryService,
+  Zone,
+  Host,
+  Port,
+  Service,
+} from '../model';
 
 @Injectable()
 export class DiscoveryService {
@@ -16,4 +26,17 @@ export class DiscoveryService {
 
     return this.rpcClient.call('DiscoveryService.startDiscovery', dsInfo);
   }
+
+  public discoverZone(probeID: string, discoveryZone: DiscoveryZone): void {
+    this.rpcClient.send('DiscoveryService.discoverZone', probeID, discoveryZone);
+  }
+  public discoverHost(probeID: string, zone: Zone, discoveryHost: DiscoveryHost): void {
+    this.rpcClient.send('DiscoveryService.discoverHost', probeID, zone, discoveryHost);
+  }
+  public discoverPort(probeID: string, host: Host, discoveryPort: DiscoveryPort): void {
+    this.rpcClient.send('DiscoveryService.discoverPort', probeID, host, discoveryPort);
+  }
+  public discoverService(probeID: string, port: Port, discoveryService: M_DiscoveryService): void {
+    this.rpcClient.send('DiscoveryService.discoverService', probeID, port, discoveryService);
+  }
 }
diff --git a/src/packages/discovery/store/index.ts b/src/packages/discovery/store/index.ts
index a82a213..977eefb 100644
--- a/src/packages/discovery/store/index.ts
+++ b/src/packages/discovery/store/index.ts
@@ -1,14 +1,36 @@
+import {
+  createSelector,
+  createFeatureSelector,
+  ActionReducerMap,
+  Selector,
+} from '@ngrx/store';
+
+import { StateSelector } from 'packages/core/ngrx/store';
+
+import { MODULE } from '../discovery.constant';
+
+
+import * as NotificationStore from './notification';
 import * as SettingStore from './setting';
 
 
 export interface State {
+  notification: NotificationStore.State;
   setting: SettingStore.State;
 }
 
 export const REDUCERS = {
+  notification: NotificationStore.reducer,
   setting: SettingStore.reducer,
 };
 
 export const EFFECTS = [
   SettingStore.Effects,
 ];
+
+export const selectDiscoveryState = createFeatureSelector<State>(MODULE.name);
+
+export const NotificationSelector = new StateSelector<NotificationStore.State>(createSelector(
+  selectDiscoveryState,
+  (state: State) => state.notification
+));
diff --git a/src/packages/discovery/store/notification/index.ts b/src/packages/discovery/store/notification/index.ts
new file mode 100644
index 0000000..f9e09d0
--- /dev/null
+++ b/src/packages/discovery/store/notification/index.ts
@@ -0,0 +1,3 @@
+export * from './notification.action';
+export * from './notification.reducer';
+export * from './notification.state';
diff --git a/src/packages/discovery/store/notification/notification.action.ts b/src/packages/discovery/store/notification/notification.action.ts
new file mode 100644
index 0000000..52b43ac
--- /dev/null
+++ b/src/packages/discovery/store/notification/notification.action.ts
@@ -0,0 +1,50 @@
+import { Action } from '@ngrx/store';
+
+import { Enum } from 'typescript-string-enums';
+
+import { notificationActionEnum } from 'packages/core/rpc/store/notification';
+import { RPCError } from 'packages/core/rpc/error';
+
+import {
+  Zone,
+  Host,
+  Port,
+  Service,
+ } from '../../model';
+
+ export enum ActionType {
+  DiscoveredZone = '[@@NOTIFICATION] DiscoveryService.discoveredZone',
+  DiscoveredHost = '[@@NOTIFICATION] DiscoveryService.discoveredHost',
+  DiscoveredPort = '[@@NOTIFICATION] DiscoveryService.discoveredPort',
+  DiscoveredService = '[@@NOTIFICATION] DiscoveryService.discoveredService',
+}
+
+export class DiscoveredZone implements Action {
+  readonly type = ActionType.DiscoveredZone;
+
+  constructor(public payload: Zone) {}
+}
+
+export class DiscoveredHost implements Action {
+  readonly type = ActionType.DiscoveredHost;
+
+  constructor(public payload: Host) {}
+}
+
+export class DiscoveredPort implements Action {
+  readonly type = ActionType.DiscoveredPort;
+
+  constructor(public payload: Port) {}
+}
+
+export class DiscoveredService implements Action {
+  readonly type = ActionType.DiscoveredService;
+  constructor(public payload: Service) {}
+}
+
+export type Actions =
+  | DiscoveredZone
+  | DiscoveredHost
+  | DiscoveredPort
+  | DiscoveredService
+;
diff --git a/src/packages/discovery/store/notification/notification.reducer.ts b/src/packages/discovery/store/notification/notification.reducer.ts
new file mode 100644
index 0000000..b781753
--- /dev/null
+++ b/src/packages/discovery/store/notification/notification.reducer.ts
@@ -0,0 +1,86 @@
+import { RPCError } from 'packages/core/rpc/error';
+
+import {
+  Actions,
+  ActionType,
+} from './notification.action';
+
+import {
+  State,
+  initialState,
+} from './notification.state';
+
+import {
+  Zone,
+  Host,
+  Port,
+  Service,
+} from '../../model';
+
+export function reducer(state = initialState, action: Actions): State {
+  switch (action.type) {
+    case ActionType.DiscoveredZone: {
+      const zone: Zone = <Zone>action.payload;
+      state.zones.set(zone.network, zone);
+
+      return state;
+    }
+
+    case ActionType.DiscoveredHost: {
+      const host: Host = <Host>action.payload;
+      const zone = state.zones.get(host.zone.network);
+      if (undefined === zone) {
+        console.error(`Discovery.discoveredHost: Zone[${host.zone.network}] is not exist`);
+      }
+      if (null === zone.hosts) {
+        zone.hosts = new Map();
+      }
+      zone.hosts.set(host.ip, host);
+      return state;
+    }
+
+    case ActionType.DiscoveredPort: {
+      const port: Port = <Port>action.payload;
+      const zone = state.zones.get(port.host.zone.network);
+      if (undefined === zone) {
+        console.error(`Discovery.DiscoveredPort: Zone[${port.host.zone.network}] is not exist`);
+      }
+      if (null === zone.hosts || undefined === zone.hosts.get(port.host.ip)) {
+        console.error(`Discovery.DiscoveredPort: Host[${port.host.ip}] is not exist`);
+      }
+      const host: Host = zone.hosts.get(port.host.ip);
+
+      if (null === host.ports) {
+        host.ports = new Map();
+      }
+      host.ports.set(port.portNumber, port);
+      return state;
+    }
+
+    case ActionType.DiscoveredService: {
+      const service: Service = <Service>action.payload;
+      const zone = state.zones.get(service.port.host.zone.network);
+      if (undefined === zone) {
+        console.error(`Discovery.DiscoveredService: Zone[${service.port.host.zone.network}] is not exist`);
+      }
+      if (null === zone.hosts || undefined === zone.hosts.get(service.port.host.ip)) {
+        console.error(`Discovery.DiscoveredPort: Host[${service.port.host.ip}] is not exist`);
+      }
+      const host: Host = zone.hosts.get(service.port.host.ip);
+      if (null === host.ports || undefined === host.ports.get(service.port.portNumber)) {
+        console.error(`Discovery.DiscoveredPort: Port[${service.port.portNumber}] is not exist`);
+      }
+      const port: Port = host.ports.get(service.port.portNumber);
+
+      if (null === port.services) {
+        port.services = new Map();
+      }
+      port.services.set(service.serviceName, service);
+      return state;
+    }
+
+    default: {
+      return state;
+    }
+  }
+}
diff --git a/src/packages/discovery/store/notification/notification.state.ts b/src/packages/discovery/store/notification/notification.state.ts
new file mode 100644
index 0000000..1299095
--- /dev/null
+++ b/src/packages/discovery/store/notification/notification.state.ts
@@ -0,0 +1,15 @@
+import { RPCError } from 'packages/core/rpc/error';
+
+import { Zone } from '../../model';
+
+export interface State {
+  error: RPCError | null;
+  processing: boolean;
+  zones: Map<string, Zone> | null;
+}
+
+export const initialState: State = {
+  error: null,
+  processing: false,
+  zones: null,
+};
diff --git a/src/packages/member/store/index.ts b/src/packages/member/store/index.ts
index ae97d0d..4ab9499 100644
--- a/src/packages/member/store/index.ts
+++ b/src/packages/member/store/index.ts
@@ -2,6 +2,7 @@ import {
   createSelector,
   createFeatureSelector,
   ActionReducerMap,
+  Selector,
 } from '@ngrx/store';
 
 import { StateSelector } from 'packages/core/ngrx/store';
diff --git a/yarn.lock b/yarn.lock
index 61d9491..1a62f59 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7113,6 +7113,10 @@ typedarray@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
+typescript-string-enums@^0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/typescript-string-enums/-/typescript-string-enums-0.3.5.tgz#00f5c30422ec5d8061ed49a0fe06610ae99f02a2"
+
 typescript@~2.5.3:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.5.3.tgz#df3dcdc38f3beb800d4bc322646b04a3f6ca7f0d"