Case Law and the Canadian Abridgement – Updating and Noting-Up Cases
Finding a case on point should not be the end of your research. You always need to make sure that this case is still "good law”; i.e. that it hasn't been overruled or discredited in any way.
Updating involves finding out the history of the case. Was it later appealed? If so, was the decision upheld or overturned by the upper court?
Noting-up involves checking the judicial treatment of a case. Has the decision been discussed by a judge in another case? If so, how did the judge treat that case; e.g. did the judge criticize the legitimacy of the original ruling? did the judge follow the original case's logic? etc.
These terms are sometimes used interchangeably.
Both can be done in print or electronically.