A107™ is for use where the basis of payment is a stipulated sum (fixed price), this document is appropriate for construction projects of limited scope not requiring the contractual complexity of A101™-1997 and A201™-1997 in combination. It may be used where the owner and contractor have established a prior working relationship (e.g., a previous project of like or similar nature), or where the project is relatively simple in detail or short in duration.