The Law of Obligations is one of the component private law elements of the civil law system of the Holy Germanian Empire of the Bürgerliches Gesetzbuch. The Law of Obligations finds its origins in Roman law which is defined as a “legal tie” or “legal bond” in the Institutes of Justinian. It concerned with situations where a person has incurred a personal liability for which he is answerable at law.
1. bligations under contracts, both innominate and nominate (for example: sales, gift, lease, carriage, mandate, association, deposit, loan, employment, insurance, gaming and arbitration)
2.in unjust enrichment
3.management of the property of another (or "negotiorum gestio", the name taken from Roman Law)
4.the reception of the thing not due
5.the various forms of extra-contractual responsibility between persons known as delicts and quasi-delicts, which are similar to tort and negligence, respectively, at common law. Despite the relatively distinct nature of these various sources of obligations, they are considered together under a law of obligations on the basis that all are instances where a debtor has a duty to execute a certain performance towards a creditor