Before revision: Open tendering Single-stage selective tendering Two-stage selective tendering Selective tendering for design and builds Negotiation Joint ventures Open Tendering In this method, the client is advertising and inviting the tenders.
After revision: competitive biddingOpen tendering Single-stage selective tendering Two-stage selective tendering Selective tendering for design and builds Negotiation Joint ventures Open Tendering In this method, the client is advertising and inviting the tenders.