It's not easily to sign a perfect complete detailed terms in contract, also have not a perfect condition for the construction. Therefore, changes orders and claims for any contract are inevitable. Making a claim is a legal right. The owners try to avoid all the risks, requesting the contractors shall be liable for all responsibilities. A potential claim may be submitted if one party fails to fulfill the duties of other party. For the purpose to maintain a cooperative relationship and harmonize with all disputes, controversies, claims, counter-claims for owners, contractors, consultants, engineering supervisors and contracts relationship persons during the period of contract which may arise between the parties. It's the main article study for above-mentioned, and hoping this paper can provide any useful to create win-win or win-win-win situation.