PT. GAYA MAKMUR MULIA MEDAN is a company engaged in selling spare parts and spare parts in North Sumatra. Along with the development of technology, the increasing business competition, especially regarding the sale of spare parts. This also affects the competition between brands of goods with the quality they produce. Products offered by various brands, brands influence people to buy these products. Judging from the large number of consumer requests for spare parts products based on sales over the last 2 years, predictions are needed for sales of the best-selling spare parts products, in order to make it easier for companies to provide stock. To find out the sales of best-selling spare part product, data mining techniques and K-Nearest neighbor algorithm are used to produce predictions of the best-selling sales in the Mitsubishhi division with an accuracy of 80,00% and Isuzu accuracy of 66,67% so that acquisition targets are obtained to increase the accuracy value for the classification of best-selling product sales.PT. GAYA MAKMUR MULIA MEDAN is a company engaged in selling spare parts and spare parts in North Sumatra. Along with the development of technology, the increasing business competition, especially regarding the sale of spare parts. This also affects the competition between brands of goods with the quality they produce. Products offered by various brands, brands influence people to buy these products. Judging from the large number of consumer requests for spare parts products based on sales over the last 2 years, predictions are needed for sales of the best-selling spare parts products, in order to make it easier for companies to provide stock. To find out the sales of best-selling spare part product, data mining techniques and K-Nearest neighbor algorithm are used to produce predictions of the best-selling sales in the Mitsubishhi division with an accuracy of 80,00% and Isuzu accuracy of 66,67% so that acquisition targets are obtained to increase the accuracy value for the classification of best-selling product sales.

Sistem E-learning SMK Yaspi Labuhan Deli menggunakan aplikasi moodle versi 2.7.2 dengan menggunakan database mariadb mysql versi 3.3.10. Sementara untuk e-learning android menggunakan moodle versi android. Sistem e-learning berbasis android dapat diakses oleh administrator, guru, murid dan tamu. Administrator mengatur situs secara umum. Misalnya mengatur tampilan situs, menumenu apa saja yang terdapat pada situs, mengatur user previlege (disebut role pada Moodle), dan lain sebagainya. Seorang Guru dapat melakukan apapun terhadap course yang diajarkannya, seperti mengganti aktivitas yang terdapat pada course tersebut, memberi nilai kepada siswa yang mengambil course tersebut, mengeluarkan siswa yang tergabung dalam course tersebut, menunjuk non editing teacher untuk mengajar pada course tersebut, dan lain-lain. Murid merupakan user yang belajar pada suatu course. Sebelum dapat mengikuti  aktifitas  pada  suatu  course,  seorang  murid harus mendaftar terlebih dahulu pada course tersebut. selanjutnya pengajar yang mengajar pada course tersebut akan memberikan grade terhadap pencapaian student tersebut. Tamu merupakan user yang selalu memiliki akses read-only