Figure 6
The flow begins with a box showing three illustrated figures labeled “Client”, “Designer”, and “Bidder”, appearing together at the top of the diagram. From “Client” and “Designer”, a solid arrow labeled “Tender” and “Released” points to a box with three icons arranged horizontally and labeled “Architectural Drawings”, “Material Specifications”, and “Quantities”. From “Bidder”, a dashed arrow arises and points to “Released”. From “Architectural Drawings”, “Material Specifications”, and “Quantities”, a rightward pointing arrow arises and points to a box labeled “BID or NOT?”. A solid arrow also arises from the dashed arrow from “Bidder” and points to “BID or NOT?”. “BID or NOT?” is connected to a description box labeled “Decide whether to bid, if bidding, prepare materials”. From “BID or NOT?”, a downward arrow arises and points to a box labeled “Blockchain Bidding”. From “Blockchain Bidding”, a rightward pointing arrow arises and points to a box labeled “Compare and Evaluate Bids”. “Compare and Evaluate Bids” is connected to a description box labeled “Blockchain stores the historical performance of suppliers”. On the left of “Blockchain Bidding”, a text box labeled “Blockchain On-Chain Storage, Disclosure of Information” is present, with a dashed arrow pointing to “Architectural Drawings”, “Material Specifications”, and “Quantities”. From “Blockchain On-Chain Storage, Disclosure of Information”, a rightward pointing arrow arises and points to “Blockchain Bidding”. From “Blockchain Bidding” and “Compare and Evaluate Bids”, a dashed arrow extends downward and points to the text box labeled “Contract details”. From “Contract details”, a dashed arrow extends downward and points to the text box labeled “Electronic signature”. From “Compare and Evaluate Bids”, a downward arrow labeled “Provide decision-making advice” also points to “Electronic signature”. From “Blockchain Bidding”, a downward arrow labeled “Leveraging the immutability and traceability of blockchain” points to the lower section of the figure, which displays Go source code spread across two columns.The blockchain public chain bidding process and chaincode