Patent ID: 8005852

Claim:
A communication device for obtaining information regarding a group comprising a user and one or more group members, the communication device comprising: a table creating module configured for creating a data table according relationships between the user and the one or more group members in the group, the data table comprising at least two personal nodes and a group node, each personal node corresponding to a group member of the group, the group node connecting to the at least two personal nodes, and each personal node of the at least two personal nodes comprising an identifier attribute and a seniority attribute, wherein the identifier attribute indicating a personal identifier of a group member corresponding to the personal node, and the seniority attribute connecting the personal node to the group node; a user interface configured for acquiring a login information about the user; a salutation obtaining module configured for obtaining a salutation of the one or more group members according to the user; and an information searching module configured for searching the data table according to the login information and the salutation of a group member in the group so as to determine a personal node corresponding to the group member, for acquiring information about the group member according to the personal node corresponding to the group member, for comparing the login information of the user with identifier attributes of all respective personal nodes of the data table so as to determine the personal node corresponding to the user, and further for determining the group node according to the salutation and the seniority attribute of the personal node corresponding to the user.