(1) “action” includes an action for contribution or indemnity brought against a person or entity arising out of that person's or entity's performance or furnishing of services or materials referred to in section 32b;
(2) “patent deficiency” means a deficiency that is apparent by reasonable inspection;
(3) “latent deficiency” means a deficiency that is not apparent by reasonable inspection; and
(4) “date of substantial completion” means the date when construction is sufficiently completed to allow the owner or a person authorized by the owner to occupy the improvement or to use the improvement in the manner for which it was intended. In the case of a phased project with more than one substantial completion date, the limitation period for actions involving systems designed to serve the entire project shall begin at the substantial completion of the earliest phase. The date of substantial completion relates specifically to the performance or furnishing design, specifications, surveying, planning, supervision, testing, observation of construction services by each profession or trade rendering services to the improvement.