Permission managed via the Security menu

Category.php

<?php

/**
 * Class Category
 *
 * @property string $Title
 * @property string $CMSSummary
 */
class Category extends DataObject implements PermissionProvider
{

    private static $db = array(
        'Title'      => 'Varchar(255)',
        'CMSSummary' => 'Text'
    );

    private static $has_one = array();

    /**
     * Permissions
     */
    public function providePermissions()
    {
        return array(
            'CREATE_CATEGORY' => array(
                'name'     => _t('Category.PERMISSION_CREATE_DESCRIPTION', 'Create categories'),
                'category' => _t('Permissions.CONTENT_CATEGORY', 'Content permissions'),
                'help'     => _t('Category.PERMISSION_CREATE_HELP', 'Permission required to create new categories.')
            ),
            'EDIT_CATEGORY'   => array(
                'name'     => _t('Category.PERMISSION_EDIT_DESCRIPTION', 'Edit categories'),
                'category' => _t('Permissions.CONTENT_CATEGORY', 'Content permissions'),
                'help'     => _t('Category.PERMISSION_EDIT_HELP', 'Permission required to edit existing categories.')
            ),
            'DELETE_CATEGORY' => array(
                'name'     => _t('Category.PERMISSION_DELETE_DESCRIPTION', 'Delete categories'),
                'category' => _t('Permissions.CONTENT_CATEGORY', 'Content permissions'),
                'help'     => _t('Category.PERMISSION_DELETE_HELP',
                    'Permission required to delete existing categories.')
            ),
            'VIEW_CATEGORY'   => array(
                'name'     => _t('Category.PERMISSION_VIEW_DESCRIPTION', 'View categories'),
                'category' => _t('Permissions.CONTENT_CATEGORY', 'Content permissions'),
                'help'     => _t('Category.PERMISSION_VIEW_HELP', 'Permission required to view existing categories.')
            ),
        );
    }

    /**
     * {@inheritdoc}
     */
    public function canCreate($member = null)
    {
        return Permission::checkMember($member, array('CREATE_CATEGORY', 'CMS_ACCESS_CategoryAdmin'));
    }

    /**
     * {@inheritdoc}
     */
    public function canEdit($member = null)
    {
        return Permission::checkMember($member, array('EDIT_CATEGORY', 'CMS_ACCESS_CategoryAdmin'));
    }

    /**
     * {@inheritdoc}
     */
    public function canDelete($member = null)
    {
        return Permission::checkMember($member, array('DELETE_CATEGORY', 'CMS_ACCESS_CategoryAdmin'));
    }

    /**
     * {@inheritdoc}
     */
    public function canView($member = null)
    {
        return Permission::checkMember($member, array('VIEW_CATEGORY', 'CMS_ACCESS_CategoryAdmin'));
    }
}