Below are elicitation questions designed to clarify the specifics and boundaries of the project. These questions aim to eliminate ambiguity, prevent effort on unnecessary features, and ensure the final product aligns with customer needs.

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What categories of waste (e.g., plastic, paper, food, e‐waste) should the system track, and how detailed must the tracking be?

Should the platform focus solely on waste reduction, or would you also like to include a carbon footprint estimation?

How will users provide their waste data—manual entries, receipt scanning, barcode scanning, or other automated methods?

How important is it for the platform to verify the accuracy of user‐reported waste data, and what methods (e.g., peer review, photo evidence) should we consider?

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Do you envision time‐based or goal‐based challenges? Should there be both individual and team challenges?

What types of gamification elements (e.g., streaks, badges, levels) should be included?

Should there be different tiers (e.g., easy, moderate, advanced) for challenges, and if so, how should rewards change across these tiers?

Do you want separate leaderboards for individuals and teams, and should these reset periodically (e.g., daily, monthly) to keep competition fresh?

What mechanisms (reporting system, automated checks) should be in place to discourage or detect fraudulent challenge completions?

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What forms of incentives make sense for your audience—digital badges, discount codes, merchandise, points for in‐app perks, etc.?

For team competitions, should rewards be shared equally or adjusted based on individual contribution?

How would you like progress (toward goals and rewards) to be displayed—charts, progress bars, periodic summaries, or something else?

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Will the app provide its own tips and eco-friendly product suggestions, or should these be user‐generated? If both, how will they be moderated?

Should users be able to upload resources (videos, blog posts, discussions) for others to learn from, and how will you handle moderation?

Which social media features are important—forums, direct messaging, the ability to ‘follow’ users, or share achievements publicly?

Should users be able to share their progress or challenge completions on social media, and can they invite friends for bonus points or some kind of referral perks?

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Who creates new challenges—admins only, or can users propose and vote on new challenge ideas?

How frequently do you want to notify users of new challenges, progress updates, or reminders (e.g., push notifications, emails, etc.)?

Should the platform include ‘re‐engagement’ nudges (e.g., emails, app notifications) for users who have been inactive for a while?

What accessibility features should be built in for visually or hearing‐impaired users and for older adults (e.g., large text, voice commands)?

Are we emphasizing a mobile‐first design, or do you anticipate equal usage on desktop/web interfaces?

If users have avatars, should they be unlockable/reward‐based, and how central is this to the overall experience?