What should be included in the terms and conditions section of a Service Agreement?

The terms and conditions of a service agreement can include the duration of agreement (the start and end dates of the agreement), termination clauses (including notice requirements, refunds or payments due), terms of renewal, obligations regarding confidentiality (this can also be solidified with an NDA), ownership of intellectual property, service delivery and payment terms, rights and obligations of both parties, and billing and payment details.