public void Execute()
{
var arguments = new[] { "Id", "Name" };
IDialog dialog = uiFactory.CreateDialog();
var input = dialog.ShowDialog(arguments).ToArray();
string id = input[0];
string name = input[1];
Client client = factory.createClient(id, name);
repository.Add(client);
client.AddObserver(uiFactory.CreateClientView());
}