}Shuroot (Prerequisites or Conditions)
}The obligations that need to be fulfilled before one starts the Salah.  If you miss one condition, your Salah is not valid.
}Arkan (Pillars) / Wajibat (Obligations)
}Both represent the obligatory acts required inside the Salah.  If you break one pillar, your Rakah is not valid.
}Sunan (Recommended)
}The recommended actions in the Salah.
}
4
Differences between
Shuroot, Arkan, Wajibat
and Sunan as-Salah