Abstract
The Technical Debt (TD) concept depicts a situation in which a technical compromise is selected despite a better solution available. The associated risks to TD may be critical if TD is overlooked or not fixed properly. For instance, the product might not be used safely (in the healthcare supplies industry) or be contaminated (in the food & beverage sector) due to a design fault not adequately addressed. This work extends the TD classification for process automation systems that need to undergo a validation process according to Good Automated Manufacturing Practice (GAMP), which is required for pharmaceutical production or food processing, for example. The approach analysed industrial engineering documents to identify such TD types and sub-types. Three selected TD use cases confirmed by industry experts are reported. The presented meta-analysis approach on engineering documents can be employed as a TD identification method for such process control systems. The TD classification for process automation was thereby enlarged for an especially critical type of machine that may harm the health of many humans.
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