Depending on circumstances, mitzvot leading toward a positive and exclusive Jewish identity will include entry into the covenant, acquisition of a Hebrew name, Torah study, Bar/Bat Mitzvah, and Kabbalat Torah (Confirmation).
For those beyond childhood claiming Jewish identity, other public acts or declarations may be added or substituted after consultation with their rabbi." Waiving the need for formal conversion for anyone with at least one Jewish parent who has made affirmative acts of Jewish identity was a departure from the traditional position requiring formal conversion to Judaism for children without a Jewish mother.
In order to be considered a “candidate” for moshiach a number of scriptural prophecies must be fulfilled by him, and such an individual must demonstrate a wide range of unparalleled attributes.
Additionally, a radical transformation in the human condition must take place for that time to be deemed auspicious for advent of the messiah.
All Jewish religious movements agree that a person may be a Jew either by birth or through conversion.
Actually, these are 7 categories and include other details.There are several reasons why Judaism rejects the notion that Jesus was the messiah.