diff --git a/app/app.component.ts b/app/app.component.ts
index 12cf4e3..97a015e 100644
--- a/app/app.component.ts
+++ b/app/app.component.ts
@@ -3,6 +3,7 @@ import {ConverterRegistryService} from "./converterregistry.service";
 import {InputComponentManagerService} from "./inputcomponentmanager.service";
 import {Converter} from "./converter/converter";
 import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
+import {Step} from "./step";
 
 @Component({
     moduleId: module.id,
@@ -12,19 +13,19 @@ import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
     providers: [ConverterRegistryService, InputComponentManagerService, NativeLibraryWrapperService]
 })
 export class AppComponent extends OnInit {
-    public steps:any[] = [];
+    public steps:Step[] = [];
     public converters:Converter[] = [];
 
     constructor(private converterRegistryService:ConverterRegistryService, private inputComponentManagerService:InputComponentManagerService) {
         super();
     }
 
-    convert(step:any, $event:any):void {
+    convert(step:Step, $event:any):void {
         step.selectedConverter = this.converterRegistryService.getConverter($event.target.selectedOptions[0].id);
         this.update(step);
     }
 
-    update(step:any):void {
+    update(step:Step):void {
         let converter:Converter = step.selectedConverter;
 
         if (converter !== undefined) {
@@ -44,7 +45,7 @@ export class AppComponent extends OnInit {
                 step.message = "";
                 step.error = false;
                 if (result !== "") {
-                    let nextComponent:any = this.inputComponentManagerService.getNext(step);
+                    let nextComponent:Step = this.inputComponentManagerService.getNext(step);
                     nextComponent.content = result;
                     this.update(nextComponent);
                 }
diff --git a/app/inputcomponentmanager.service.ts b/app/inputcomponentmanager.service.ts
index a15b97c..4b93a70 100644
--- a/app/inputcomponentmanager.service.ts
+++ b/app/inputcomponentmanager.service.ts
@@ -1,21 +1,22 @@
 import {Injectable} from "@angular/core";
+import {Step} from "./step";
 
 @Injectable()
 export class InputComponentManagerService {
-    private components:any[] = [];
+    private components:Step[] = [];
 
     public constructor() {
     }
 
-    public register(component:any):void {
+    public register(component:Step):void {
         this.components.push(component);
     }
 
-    public getAllComponents():any[] {
+    public getAllComponents():Step[] {
         return this.components;
     }
 
-    public getNext(component:any):any {
+    public getNext(component:Step):Step {
         let index:number = component.index;
         if (index == this.components.length - 1) {
             this.addComponent();
@@ -23,7 +24,7 @@ export class InputComponentManagerService {
         return this.components[index + 1];
     }
 
-    public getFirst():any {
+    public getFirst():Step {
         if (this.components.length == 0) {
             this.addComponent();
         }
@@ -31,12 +32,6 @@ export class InputComponentManagerService {
     }
 
     private addComponent():void {
-        this.register({
-            content: "",
-            selectedConverter: undefined,
-            index: this.components.length,
-            error: false,
-            message: ""
-        });
+        this.register(new Step(this.components.length));
     }
 }
\ No newline at end of file
diff --git a/app/step.ts b/app/step.ts
new file mode 100644
index 0000000..fb4d584
--- /dev/null
+++ b/app/step.ts
@@ -0,0 +1,12 @@
+import {Converter} from "./converter/converter";
+export class Step {
+    public content:string = "";
+    public selectedConverter:Converter = undefined;
+    public index:number;
+    public error:boolean = false;
+    public message:string = "";
+
+    constructor(index:number) {
+        this.index = index;
+    }
+}
\ No newline at end of file