Although different denominations call their Church leaders different names, the biblical reference to a leader of a church is Elder. In this questionnaire we refer to a leader of a church as an Elder and any person appointed by Eldership to assist with practical assistance in Ministry will be called a Deacon.
Elders are appointed by a representation of Body of Christ
Deacons are appointed by Eldership.
The Bible is clear that it is good to desire these positions. It is positions of servant-hood and overseeing the Children of God.
Read more about this in BRANCHES under Chapter on Appointment.