The exchange of electronic documents (e-documents) between the parties, such as requests for  services, specific contracts or invoices, may be automated through the use of the e-PRIOR platform in  accordance with the provisions of Article II.5.3 and Annex XVII (if applicable).  The use of the e-PRIOR platform may be made available during the lifetime of the contract. SIGNATURES  For the contractor,  [Company name/forename/surname/position]  Signature[s]: _______________________  For the contracting authority,  Maja Markovčić Kostelac  Executive Director  Signature[s]:_____________________  Done at Lisbon, [ date ]  Done at [ place ], [ date ]  In duplicate in English.  11 