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162    +Gains                  A B    Manual System. Offline process. High level of
                                                    Intelligent Digital Oil and Gas Fields


             Production performance with and without DOF  −Loses  Sustained gains  C  Automated but nonoptimized system. Online
                                                downtime production. Human Intervention. 24
                                                hours delays in response
                                                process. Human intervention for controls.
                                                Automated and optimized system. Online process.
                                                Human intervention for controls
                                         D
                                                Automated and optimized system with smart
                                                control process connected to loT. Online process.
                                                Automated control with human supervision.









                                     Time in months
          Fig. 5.7 Comparison of different levels of automated workflows in DOF. The production
          benefit of DOF implementation over manual process (A) is observed. There are DOF with
          automated workflows but nonoptimized (B), automated workflows with optimized sys-
          tem (C) but controlled by engineers and an automated-optimized system and self-
          controlled by smart operation (D).



          5.2.6 The Ten Essential Steps to Build the Back End
                of an Automated Workflow
          In software architecture the back end is defined as a task incorporated as
          algorithm in a programming script or language which is able to automate
          the entire workflow process, that is, from A to Z. The back end process
          also is focused on data transmission, data transformation, data security and
          accessibility, and backup system. Fig. 5.8 describes the 10 most important
          steps to design the back end of an automated workflow using a web user
          interface (UI).
             Step 1: Understand the current manual process. Ideally, existing manual pro-
             cesses will be documented. But if not, then it is critical to first document
             them because it will be very difficult to automate a process until under-
             standing how engineers execute current state process. It is very important
             to specify the purpose, inputs, outputs/results, dependencies, decisions,
             and process flow. The most useful way to document a process is a flow
             chart, which shows objects and actions, and an organigram, which shows
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