Inventory recording must be done by the company to find out the available stock, so that the company can know when to order goods from the supplier. With the existence of a good inventory system planning, it will be easier for the company to carry out the planned and controlled in and out of the goods process. A distributor of chemicals in recording and inventorying raw materials is still very simple resulting in many products being expired. The purpose of this research is to help companies systematically, precisely and accurately in inventory data collection to reduce expired products. By designing a raw material inventory information system using Visual Studio 2010 programming language and SQL Server 2008 R2 database, then the report form is generated using the Crystal Report 2010 version version. 13.02. With the new information system is expected to be able to provide inventory reports quickly and accurately, and can notify when there are raw materials that will be expired. With the existence of a database based on SQL server, each user will be more effective at work.

High productivity is the main thing that must be owned by all companies and industry players in meeting the needs of consumers. To increase the productivity of the company must be supported by the smooth process of production, one of the ways is setting the right plant layout because it affects the cost of the production process. A cracker maker manufacturing company has constraints in layout arrangements that result in inefficiency in production and distance which results in high material handling costs so that a layout redesign has to be done to minimize material handling costs. The design of the production floor facility layout is done by CRAFT algorithm with the help of WinQSB software. The results of the study found that alternative proposals that provide a reduction result of 9.21% or equal to Rp 6,781,236, - per batch of the total cost of material handling initial layout.

The presence of the Corona virus disease 2019 (Covid-19) pandemic has changed the order in all corners of the world in a very short time. This large-scale change has occurred in the last two years starting from 2019 until now. This has resulted in the world of education experiencing major changes in the teaching and learning process. The learning process during the COVID-19 pandemic (online) is very much different from the previous learning process (face to face). This is a big problem in the world of education. The online learning policy, which was thought to be the solution to this problem, turned out to be just a bridge to break the passion for learning for students. evidenced by the impact felt by students during online learning. The satisfaction of online learning by Prima Indonesia University students can be seen from the results of the keosener (google form) that the researcher has distributed to 501 students. Researchers use data mining to explore important information that is expected to be used as consideration for enforcing the current online learning process. Researchers use the C 4.5 Algorithm method in data mining in order to bring out the impact of online learning. Measurement of satisfaction level is done by calculating the Entropy and Gain of each data that becomes a Decision tree and testing the results using Rapid Miner. The C 4.5 algorithm is very helpful for researchers to find out the impact of online learning carried out during the covid 19 pandemic. From the results of calculations and testing, it shows that there is a decrease in student interest in learning in the online learning process. this concludes that online learning in the pandemic era has a negative impact on students at Prima Indonesia University.