1. Elements Of An Obligation
1.1. Active subject
1.2. Passive subject
1.3. Object
2. Sources Of Obligation
2.1. Law
2.2. Contracts
2.3. Quasi-contracts
2.4. Acts or omissions punished by law
2.5. Quasi-delicts
3. Extinguishment Of Obligations
3.1. Payment Or Performance
3.1.1. Special Rules/Forms Of Payment
3.1.1.1. Application Of Payments
3.1.1.2. Dacion En Pago
3.2. Loss Of The Thing Due
3.3. Condonation Or Remission Of Debt
3.4. Confusion Or Merger Of Rights
3.5. Compensation
3.6. Novation
3.7. Annulment
3.8. Rescission
3.9. Fulfillment Of Resolutory Condition
4. Form Of Contracts
4.1. Form
4.1.1. Informal
4.1.2. Formal
4.1.3. Real
5. Defective Contracts
5.1. Kinds Of Defective Contracts
5.1.1. Rescissible Contracts
5.1.2. Voidable Contracts
5.1.3. Unenforceable Contract
5.1.4. Void Or Inexistent
6. Nature & Effects Of Obligations
6.1. Nature Of Obligation
6.1.1. Personal Obligations
6.1.1.1. Negative
6.1.1.2. Positive
6.1.2. Real Obligations
6.1.2.1. Determinate or specific
6.1.2.2. Generic
6.1.2.3. Limited Generic
6.2. Effect Of Obligations
6.2.1. Duties Of Debtor In An Obligation To Give A Determinate Thing
6.2.2. Remedies Of The Creditor In Case Of Nonperformance
6.2.3. Breach Of Obligations
6.2.4. Fraud (Dolo)
6.2.5. Effects Of Contributory Negligence Of The Creditor
6.2.6. Remedies Available To Creditors For The Satisfaction Of Their Claims
7. Different Kinds Of Obligations
7.1. Primary Classification Of Obligations Under The Civil Code
7.1.1. Demandability
7.1.2. Plurality of object
7.1.3. Plurality of subject
7.1.4. Performance
7.1.5. Sanction For breach
7.2. Pure And Conditional Obligations
7.2.1. Suspensive
7.2.2. Resolutory
7.2.3. Potestative
7.2.4. Casual
7.2.5. Mixed