The document discusses various ways in which contracts can be discharged or terminated: 1. Performance of the contract terms by both parties. 2. Mutual consent or agreement between the parties, such as novation, alteration, rescission, remission, or waiver. 3. Lapse of time, such as the expiration of a limitation period barring a legal claim or remedy. 4. Operation of law, including merger, unauthorized document alteration, or insolvency. 5. Breach of contract by one party.