社交网站 - 使用GEDCOM

i have to develop one social networking website. i have to follow gedcom standards for that. someone told me you have to take care at time of database designing if you are going to use GEDCOM. so please anybody can help me out for material i can read before i start website development and things to be taken care. or from where i can have strucutre of GEDCOM? i dont know anything about GEDCOM i have to develop one social networking website