There are four types of Kaddish: 1) Half Kaddish, 2) Full Kaddish, 3) Mourner’s Kaddish, and 4) Rabbi’s Kaddish. The Half Kaddish is recited by the chazzan and it connects different parts of the prayer service together. For example, in the morning, it is recited in between Pesukei D’Zimra and the blessings of Shema. It is also recited after the Shemone Esray or Tachanun and the concluding prayers of Shacharis (Ashrei and U’va L’sion).