Since late 2014, the ISO released the IEC/ISO 29110: Systems and software engineering -- Lifecycle profiles for Very Small Entities (VSEs) -- Part 5-6-2: Systems engineering -- Management and engineering guide: Generic profile group: Basic profile. You may refer to it as thYou may download the technical report freely here.
This standard targets small entities and SME and helps them adopting and deploying a suitable engineering process for systems engineering activities.
You may read this white paper from Ecole de Technologie Supérieure (in English) discussing the reasons of its release.
Nuum Solutions provides a deployment package (for Gaia for JIRA) supporting this standand. This solution is a quick starter for using such standards within your enterprise. Contact Nuum Soluitons for more details.