2025-01-172025-01-1720201573-13670963-9314https://hdl.handle.net/11441/166856Product line (PL)-based development is a thriving research area to develop softwareintensive systems. Feature models (FMs) facilitate derivation of valid products from a PL by managing commonalities and variabilities among software products. However, the researchers in academia as well as in the industries experience difficulties in quality assessment of FMs. The increasing complexity and size of FMs may lead to defects, which outweigh the benefits of PL. This paper provides a systematic literature review and key research issues related to the FM defects in PL. We derive a typology of FM defects according to their level of importance. The information on defects’ identification and explanations are provided with formalization. Further, corrective explanations are pre-sented which incorporates various techniques used to fix defects with their implementa-tion. This information would help software engineering community by enabling developers or modelers to find the types of defects and their causes and to choose an appropriate technique to fix defects in order to produce defect-free products from FMs, thereby enhancing the overall quality of PL-based development.application/pdf44 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Feature modelSoftware product lineDefectProduct line modelQualityinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1007/s11219-020-09522-1