Figure 1
The flowchart illustrates the systematic literature review process and protocols. The process begins with the identification phase, where studies are identified from Scopus, totaling 2256 studies. Studies excluded before screening amount to 545, due to not being in English language or not being peer-reviewed articles. The next phase is screening, where 1711 studies are screened based on title and abstract review. Studies excluded at this stage total 1524, due to not being consumer-centric, absence of a relevant methodology, or being systematic literature review or review articles. The subsequent phase is eligibility assessment, where 185 studies are assessed for eligibility through full text review. Studies excluded at this stage total 146, due to focusing on sustainable products rather than sustainable product development or being irrelevant articles. The final phase includes 39 studies in the review.SLR process and protocols