Consider the interplay between these theories and practical implementation strategies, alongside factors like technology integration, supply chain optimization, and workforce management. Analyze the implications of adopting these theories on improving productivity, minimizing waste, enhancing product$/$service quality, and meeting customer demands. Additionally, explore how cultural and organizational factors influence the successful implementation and sustainability of these theories in diverse operational contexts. Finally, discuss potential challenges and strategies for overcoming barriers in integrating theoretical frameworks into operational management practices."