How should I consume a WCF service using MVC3
// example of ws
public class Service1 : IService1
 {
        public string GetData( int value )
        {
            return string.Format( "You entered: {0}", value );
        }

        public CompositeType GetDataUsingDataContract( CompositeType composite )
        {
            if( composite == null )
            {
                throw new ArgumentNullException( "composite" );
            }
            if( composite.BoolValue )
            {
                composite.StringValue += "Suffix";
            }
            return composite;
        }
 }

// example of mvc action
public class HomeController : Controller
 {
        public ActionResult Index()
        {
            IService1 service = new Service1();

            service.GetDataUsingDataContract(....)

            ViewBag.Message = "Welcome to ASP.NET MVC!";

            return View();
        }
 }

public ActionResult Index()
    {
        SettingsModel config = null;

        // Set up a channel factory to use the webHTTPBinding
        using (WebChannelFactory<IChangeService> serviceChannel =
            new WebChannelFactory<IChangeService>(new Uri(baseServiceUrl )))
        {
            IChangeService channel = serviceChannel.CreateChannel();
            config = channel.GetSysConfig();
        }

        ViewBag.Message = "Service Configuration";

        return View(config);
    }