https://amalhr.com/mjob_post/%d8%aa%d8%b5%d9%85%d9%8a%d9%85-%d9%85%d8%ae%d8%b7%d8%b7%d8%a7%d8%aa-uml-%d9%84%d8%aa%d8%ad%d9%84%d9%8a%d9%84-%d8%a7%d9%84%d9%86%d8%b8%d9%85-software-engineering/