There are many types and brands of Scada systems and a few types of Process control systems for liquid process, such as Accord. Accord is the platform that provides for any user to build completely object oriented systems; which are built using only configuration, without any tagging or scripting. There are huge advantages to this approach, both for engineering and operations. This is a small write-up of some advantages in a discussion format.
This is a good resource for study of the principles: https://www.academia.edu/4312062/Object_oriented_models_for_advanced_automation_engineering
Operations Advantages
Operations generally starts as a handover during commissioning. Accord uses well designed faceplates with built-in security so the system is easy to access and understand from day 1. The object explorer attached to each faceplate allows access to any device from any screen and list controls automatically update any relevanty device changes so commissioning changes are often just graphical and users expect to find relevant items easily in the list controls.
Accord comes with built-in Audit applications. These are very valuable for tracking events and are included in every system.
All operations history can be easily audited, for any time period. Personnel activity, in changing parameters or program or equipment states, can also be easily checked. These audits are very valuable when finding root causes for issues, and the fact that they are included and available, without any additional setup, database configuration or scripting, from time of installation is a huge benefit.
In addition, in terms of Security, Accord can check the settings in the PLC at regular intervals and report on any settings that have changed without authorisation. This makes the systems extremely secure.
Parameters, times and selections, are easy to change in the Recipe manager, with all changes being stored and available in the Audit Trail for peace of mind.
Perhaps the biggest advantage is in the Plan/MES module. This allows operations managers to freely configure campaigns of programs to be carried out, freeing up operations personnel from having to start or continuously monitor individual programs.
Engineering Advantages
The ability to configure a control system without any tagging or scripting is a huge step from IEC language programming. It is faster and more transparent athan any manual method, and certainly more secure and predicable than any AI method.