which category settlement better?

which category settlement improved why?

public category user
{
    open twine username;
    open twine password;
    open twine firstname;
    open twine lastname;
}

public category worker : user
{
    open twine employeeid;
    open twine employeecode;
    open twine departmentid;
}

public category member : user
{
    open twine memberid;
    open twine joindate;
    open twine expirydate;
}

or

public category user
{
    open twine userid;
    open twine username;
    open twine password;
    open twine firstname;
    open twine lastname;
}

public category employee
{
    open user userinfo;
    open twine employeeid;
    open twine employeecode;
    open twine departmentid;
}

public category member
{
    open user userinfo;
    open twine memberid;
    open twine joindate;
    open twine expirydate;
}