The Requirement is for the Design of a Database to support any Real World activity.
PEOPLE live in a world with other PEOPLE.
Every PERSON interacts with other PEOPLE and ORGANIZATIONS.
Every PERSON's life is full of EVENTS.
A PERSON enters into a CONTRACT to buy or rent Goods or Services,(ie PRODUCTS).
A. Things of Interest :-
A.1 Addresses
A.2 Activities
A.3 Communities
A.4 Donors
A.5 Events
A.6 Organizations.
A.7 People
A.8 Roles 
Organizations include :-
Charities, NGOs, Suppliers.
People include :-
Customers, Customer Contacts,Donors, Family members,
Transactions include :-
Donations
C. How are these Things of Interest related ?
C.1 A Person can be related to many Organizations.
C.2 An Organization can be related to many People.