Databricks for production is indeed costly. However, for learning purposes, databricks can be provisioned for reasonable cost.

Production capacity need to be maintained by planning the regular maintenance,overhaul and on time turn around.

OCR can be used to extract information from an images. It will be able to recognize some pattern/word/sentence and send those extracted information to the target application/system.

SAP PM serve as CMMS and EAM. It handle maintenance workflown and capable of incorporating some ERP modules such as FICO for financing and MM for material management including inventory, procurement, invoicing and vendor management.

Google analytics can be used to check the number of blog visitor and understand their bahavior (most frequent vistted page, bouncing rate, new user vs old new user, etc). In other hand, google search console is used to monitor the impression and click rate on search engine. Both are the eyes to monitor the blog growth.

Turn around is executed if only if shutdown is needed on plant/system level before executing the maintenace. Because of the shutdown, it will disturpt the production activity. System restartup might introduce new safety, environmental and operational risk. TA need to be planned properly using proper project management tools.

measure of central tendencies is critical step on every data analysis especially during the EDA (Exploratory data analysis).