Slide $1$: Data Collection MethodsQualitative research: Focus groups and interviews were used to understand stakeholder opinions on sustainable packaging.Quantitative research: Surveys and analysis of secondary data were employed to measure market trends and support primary study conclusions.Slide $2$: Sampling DesignTarget population: Stakeholders engaged in designing, production, shipping, and selling of Puma footwear.Sample selection approach: Stratified random sampling.Sample frame: Identification of parties involved at each supply chain phase.Strata: Puma representatives, packaging suppliers, retailers, customers.Rationale: Provides diverse stakeholder perspectives for understanding sustainable packaging techniques.Slide $3$: Stratified Sampling Approach for Stakeholder SelectionPuma representatives: Designers, executives, sustainability specialists.Packaging Suppliers: Producers of cardboard, ink, packaging design.Retailers: Chain, individual, internet retailers of Puma footwear.Customers: People who buy and wear Puma footwear.Environmental Organizations: Advocacy groups, NGOs focusing on environmental concerns.Justification: Ensures participation from key stakeholder organizations, facilitates varied viewpoints.Slide $4$: Data Collection ProceduresApproach to participants: Direct promotion, industry associations, professional networks for stakeholders; social media, retail, online channels for customers.Obtain written consent: Explain goal, processes, participant rights $($informed consent$).$Survey administration: Interviews, focus groups, questionnaires in person or electronically, ensuring confidentiality.Setting: Workplaces, shops, online portals.Interference from researchers: Minimized to preserve participant autonomy.Time horizon: Variable to accommodate participant availability.Ethical considerations: Protect participant rights, maintain anonymity, seek ethical approval as required.Reference: Belcourt, M$.(2020).$ Managing Performance through Training and Development $(8$th ed$.).$ Nelson Education.

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