Judul: “Designing the FWCHANGER Application as the Solutions of Food Waste Issues using Social Business Model
Abstrak: The issue of food waste is increasingly gaining attention in various countries due to its detrimental impact on the environment, economy, and society. One of the favored options for managing this waste is through recycling, which is now combined with the concept of "from trash to cash" through digital platforms. This research aims to identify the obstacles faced by households in managing food waste, design a prototype food waste management application as a solution to overcome the problem of food waste in the household, and develop an appropriate and verified business model to solve the problem of food waste in the household. This study employed customer discovery with a descriptive qualitative approach, using non-probability sampling techniques in the form of purposive sampling by distribute the survey online from June 2023 to August 2023. The results of that study indicated that respondents faced five main issues related to food waste, namely a lack of knowledge, limited information about waste disposal service providers, time constraints, difficulties in dealing with easily perishable waste, and laziness. In addressing those issues, FWCHANGER had developed several solutions by integrating features tailored to the preferences of respondents. The adopted business model, the social lean canvas, was successfully verified through three crucial components: product-market fit, customer outreach approach, and the company's profit strategy., Isu food waste atau sampah makanan yang semakin menjadi perhatian di berbagai negara karena dampaknya yang merugikan terhadap lingkungan, ekonomi, dan sosial. Salah satu opsi yang diminati untuk mengelola sampah ini adalah dengan metode daur ulang (recycle), yang kini dikombinasikan dengan konsep "from trash to cash" melalui digital platform. Penelitian ini bertujuan untuk mengidentifikasi kendala yang dihadapi rumah tangga dalam mengelola food waste, merancang prototype aplikasi pengelolaan food waste sebagai solusi dalam mengatasi permasalahan limbah food waste dalam rumah tangga, dan menyusun model bisnis yang tepat dan terverifikasi untuk memecahkan permasalahan limbah food waste dalam rumah tangga. Metode yang digunakan dalam penelitian ini adalah customer discovery dengan pendekatan deskriptif kualitatif, dengan menggunakan teknik non-probability sampling berupa purposive sampling dengan menyebarkan survei secara online yang berlangsung pada Juni 2023 hingga Agustus 2023. Hasil dari studi ini mengindikasikan bahwa ada lima isu utama yang dihadapi oleh responden terkait food waste yaitu kurangnya pengetahuan, informasi terbatas tentang penyedia jasa penyaluran, keterbatasan waktu, kesulitan menghadapi sampah yang mudah busuk, dan rasa malas. Dalam mengatasi hal tersebut, FWCHANGER telah mengembangkan beberapa solusi dengan mengintegrasikan fitur-fitur yang disesuaikan sesuai dengan preferensi para responden. Model bisnis yang diadopsi, yaitu social lean canvas, telah berhasil diverifikasi melalui tiga komponen penting, yakni kesesuaian produk dengan pasar, pendekatan dalam menjangkau pelanggan, serta strategi perusahaan menghasilkan keuntungan.
Keyword: customer discovery, digital platform, social lean canvas, sustainable living

Judul: Wastedrop: Digital Platform-Based Solution to Furniture Waste Management
Abstrak: Perkembangan industri furnitur disertai dengan meningkatnya jumlah sampah furnitur yang dihasilkan. Wastedrop merupakan bisnis yang mendukung perbaikan kualitas pengelolaan sampah furnitur. Penelitian ini dilakukan untuk menemukan kesesuaian produk dan layanan Wastedrop dengan pasar. Metode yang digunakan pada penelitian ini adalah customer discovery dengan mewawancarai 50 responden pada uji masalah dan 20 responden pada uji solusi. Hasil uji masalah menunjukkan 88% responden calon pelanggan layanan mengalami berbagai permasalahan ketika membuang sampah furnitur dan 80% responden calon pelanggan eco-furniture tertarik untuk melakukan pembelian. Solusi kemudian dirancang dalam bentuk high-fidelity prototype dan dipresentasikan kepada responden. Hasil uji solusi digunakan untuk memperbaiki rancangan solusi dan menyesuaikan model bisnis dengan kebutuhan dan preferensi calon pelanggan. Tahap akhir penelitian ini yaitu verifikasi menunjukkan bahwa bisnis Wastedrop dapat dilanjutkan menuju tahap customer development lainnya, The development of the furniture industry is accompanied by an increase of furniture waste produced. Wastedrop is a business that supports improving the quality of furniture waste management. This research was conducted to find the suitability of Wastedrop products and services with the market. The method used in this research is customer discovery by interviewing 50 respondents in the problem test and 20 respondents in the solution test. The problem test results show that 88% of prospective service customer respondents experience various problems when disposing of furniture waste and 80% of potential eco-furniture customer respondents are interested in making a purchase. The solution is then designed in the form of a high-fidelity prototype and presented to respondents. The solution test results are used to improve the solution design and adapt the business model to the needs and preferences of potential customers. The verification stage shows that the Wastedrop business can be continued to the next customer development stages.
Keyword: business models, customer discovery, eco-furniture, pickup service, waste management

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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