I defined factory in Application\Module :

public function getServiceConfiguration()
    {
        return array(
            'factories' => array(
                'Navigation' => 'ZFBook\Navigation\Service\NavigationFactory',
            )
        );
    }

But, in my view, when i write :

echo $this->navigation()->breadcrumbs()->setMinDepth(0)->setLinkLast(true)->setPartial('bloc/breadcrumbs')->render();

Plugin name 'navigation' don't call the view helper, but my factory. Because in Zend\Loader\PluginBroker :

$locator  = $this->getServiceLocator();
        // Pulling by alias
        if ($locator) {
            try {
                $instance = $locator->get($plugin);
            } catch (ServiceManagerException $e) {
                // not returning an instance is okay; there are other ways to 
                // retrieve the plugin later
                $instance = false;
            }

            if ($instance) {
                if ($this->getRegisterPluginsOnLoad()) {
                    $this->register($pluginName, $instance);
                }
                return $instance;
            }
        }

        $class = $this->getClassLoader()->load($plugin);
        if (empty($class) && !class_exists($plugin)) {
            throw new Exception\RuntimeException('Unable to locate class associated with "' . $pluginName . '"');
        }

        if (empty($class) && class_exists($plugin)) {
            $class = $plugin;
        }

I think, we must resolved the short name in first, and try with service manager in second, no ?