A congregation might organize itself along the lines of three components. First is the inviting ministry, which might include invitational evangelism, public relations, and hospitality. But this is not just about welcoming new people; it's also about welcoming the flow of new life experience among people already there.
Then there could be the transforming ministry, which would include worship and teaching, and formational groups. The third component would be the sending ministries, including equipping, service, and ministry teams. This can be viewed as both an organizational structure, and as evidence of a living congregational system.
Anthony Robinson, Changing the Conversation: A Third Way for Congregations