# DPP-CRC Diagrams ## Requirements and Design Document ### Core Sequence ```plantuml @startuml actor "Concrete\nProducer" as cp participant "Mobile\nWallet" as wallet database "Data\nIntermediary" as disp database "Private\nStore" as store collections "EPD\nCalculator" as epd actor "Auditor" as auditor actor "Building\nOwner" as owner cp -> store: enter Concrete Mixture cp --> store: trigger EPD calculation store -> epd: send Concrete Mixture epd -> disp: store EPD (incl. ZKP) auditor -> disp: attest concrete strength (PDF report) cp --> disp: trigger DPP creation disp -> wallet: request signature cp --> wallet: confirm signature wallet -> disp: provide signature disp -> disp: create DPP from EPD &\nconcrete strength\nsigned by CP owner -> disp: read DPP @enduml ```