Final answer:
The owner and architect must commence all claims within the period specified by applicable law, which is typically the statutory limitations period.
Step-by-step explanation:
The period specified by applicable law, but in any case not more than the statutory limitations period, typically determines the time frame within which the owner and architect must commence all claims. The statutory limitations period can vary depending on the jurisdiction and the specific claim being made. For example, in some jurisdictions, the statutory limitations period for a breach of contract claim may be 4 years, while for a personal injury claim it may be 2 years.