- Systems needed in Deca: Registration (emergency/personal contact information for individuals, sign ins and outs/membership cards), Emergency (Disaster, First Aid) Who to Contact for Specific Needs eg for space rentals, conflict resolution | - Systems needed in Deca: Registration (emergency/personal contact information for individuals, sign ins and outs/membership cards), Emergency (Disaster, First Aid) Who to Contact for Specific Needs eg for space rentals, conflict resolution |