The binding legal principles established are: (1) The identity of parties to a contract must be determined from the contract read as a whole and background circumstances existing at the time of contracting, with the contract's express identification being the starting point. (2) Under section 12(3) of the Prescription Act 68 of 1969, prescription does not commence until the creditor has knowledge (actual or constructive through reasonable care) of the debtor's identity; where the creditor reasonably believes a different entity is the debtor based on representations and conduct, the creditor cannot be held to have constructive knowledge of the true debtor's identity. (3) An engineer's duty to supervise construction includes examining materials and workmanship for compliance with specifications, including quality, proper preparation, and installation in accordance with contract requirements. (4) Where two parties independently breach separate contracts (construction contract and supervision contract) causing the same or overlapping damage to the plaintiff, both are liable concurrently/severally for that damage; the plaintiff may sue either or both without being required to pursue one before the other, though the plaintiff cannot recover the same damages twice. This is independent concurrent liability, not joint liability. (5) A contractor is liable for defective work by nominated sub-contractors under clause 61 of the General Conditions of Contract unless the contractor properly objected or required the sub-contractor to enter a compliant sub-contract with indemnity provisions. (6) Under construction contracts providing for rectification at contractor's cost or employer's right to re-execute and claim reimbursement (clause 49), the employer may claim damages equivalent to re-execution costs even if not the landowner, as the contractual right to reimbursement constitutes a money claim rather than requiring specific performance. (7) Retention moneys held by the employer under a construction contract must be deducted from damages awarded for defective work.