This book constitutes the refereed proceedings of the 13th International Conference on the Quality of Information and Communications Technology, QUATIC 2020, held in Faro, Portugal*, in September 2020. The 27 full papers and 12 short papers were carefully reviewed and selected from 81 submissions. The papers are organized in topical sections: quality aspects in machine learning, AI and data analytics; evidence-based software quality engineering; human and artificial intelligences for software evolution; process modeling, improvement and assessment; software quality education and training; quality aspects in quantum computing; safety, security and privacy; ICT verification and validation; RE, MDD and agile. *The conference was held virtually due to the COVID-19 pandemic.

This is the first book of its kind on software metrics - the measurement of software products and processes used for establishing quality assurance thresholds and in predicting quality levels. This authoritative review of the subject discusses a number of weaknesses which have been discovered over the last ten years and describes a method for the derivation and validation of metrics. This is the first work to describe a methodical derivation process for software metrics and is a major improvement over the current ad hoc ways of developing metrics making this an important and much needed contribution to software engineering.