Judaism, specifies seven immediate family members who are expected to directly observe the mourning period: the mother and father, son and daughter, brother and sister, (including half-brother and half-sister), and husband and wife.
The word Shevah in Hebrew means seven, and the word Shiva is taken from that to mean seven days of mourning following the funeral.
Jewish people do not have a wake (where the body is displayed), because Judaism beliefs is that the body should be brought to its resting place as soon as possible. It is not customary to bring flowers because the funeral is to be as simple as possible. Only wood coffins are used in Jewish funerals because Judaism belief is that we do not preserve the body because as the body decays, the soul ascends to Heaven.
Services starts with the Kaddish, a special prayer which is also recited for a parent for 11 months and for other family members for 30 days. Kaddish is usually said by the son. If there are no sons, family members can designate someone else to say Kaddish for the deceased. It is considered a privilege for the deceased soul to have someone say Kaddish for them.
Cremation is not allowed in Jewish law because the body was given to us as a gift from G-d who expects us to take care of ourselves and return in the best condition possible.
Autopsies are not allowed according to Jewish Law, nor donation of body organs. A Rabbi must be consulted if an autopsy has to be done or an organ donation is being considered. It is acceptable, however, to donate a kidney during the persons lifetime.
Embalming is not allowed. This process of removing blood, discarding it down the drain and substituting preservative chemicals in the body, is considered desecration of the deceased person and is forbidden by Jewish Law.
At the first meal after the funeral, mourners eat a hard-boiled egg and something round to indicate that life is like a circle and the mourners have no words to describe their loss.
For thirty days, mourners do not attend weddings, bar/bat-mitzvahs or other events that have music. The son or daughter of the deceased do not attend for 12 months. They also do not shave or cut their hair.
Visitors can bring live flowers, although a more accepted custom is to put stones on the grave instead. Putting a pebble on the grave is an expression of someone having visited to pay respect for the deceased person.
Customs also vary about the Tombstone Unveiling ceremony. In Israel, many people do it after 30 days, other people do it at the 11th month after the burial. The family Rabbi would be the best person to check with.
Any information can be put on the tombstone. Usual procedure is to place both the English and Hebrew names of the deceased on the tombstone with their fathers name. Some people may also list the birth date and the date that the person passed away. Jewish people who are Cohenim or Leviim also put symbols such as a pair of hands or a wash basin to show that they are a Cohen or a Levi.
Yizkor is a prayer said in memory of the person. This prayer is said on Yom Kippur, Shmini Atzeret, on the last day of Passover, and Shavuot.