SysML: MagicDraw/Cameo: Use query view tables, matrices, and maps, use them a lot! They help communicate well with other stakeholders. Learn how to use the Generic Table diagram type, custom relations, Simple Navigation & Metachain Navigation (expert)!
Magicdraw/Cameo has powerful relationship Dependency Matrix diagrams, and in many cases one can assign or remove relationships directly in the cells of the matrix just by clicking!