The quantities of legal materials stored in electronic databases are vast. Databases are made more manageable by being organised and structured to reflect important concepts. Keeping these concepts and structures in mind will help you to understand and use databases properly.
Jurisdiction
The geographical or political divisions in which particular laws apply
Case law
Legislation
Other kinds of legal materials
Decisions of the courts that become law through the doctrine of precedent
Law that is enacted by a legislative body or authority