Technical debt (TD) is a critical issue in the software (SW) development industry that increases development costs over time and needs adaptation for production automation SW. This paper provides code metrics compliant with IEC 61131-3 programming languages for measuring the quality level of the system enabling the SW developer to evaluate TD compared to other existing applications. We introduce metrics, i.e. Halstead, McCabe, Kafura or MSUI to evaluate their applicability measuring code size, complexity and modularity in APS domain using two different expansion states of an application example.     «

Technical debt (TD) is a critical issue in the software (SW) development industry that increases development costs over time and needs adaptation for production automation SW. This paper provides code metrics compliant with IEC 61131-3 programming languages for measuring the quality level of the system enabling the SW developer to evaluate TD compared to other existing applications. We introduce metrics, i.e. Halstead, McCabe, Kafura or MSUI to evaluate their applicability measuring code size, c...     »