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Advances in information technology have driven the transformation of banking services towards digitalization through mobile banking. Bank Central Asia (BCA), one of the largest private banks in Indonesia, offers m-BCA services to facilitate quick, practical, and efficient customer transactions. However, issues such as delayed notifications, system disruptions, and login problems still exist. This study aims to evaluate m-BCA user satisfaction using the PIECES Framework, which consists of six dimensions: Performance, Information, Economy, Control and Security, Efficiency, and Service. A descriptive quantitative approach was used, with a questionnaire distributed to 105 active m-BCA users in South Jakarta. Data were analyzed using mean values to assess satisfaction levels for each dimension, and validity and reliability tests were conducted. The results showed average scores of 4.02 for Performance, 4.08 for Information, 4.08 for Economy, 4.18 for Control and Security, 4.20 for Efficiency, and 4.09 for Service. The overall score of 4.10 falls into the "Satisfied" category. The highest score was for Efficiency, indicating strong support for users’ banking activities, while the Performance dimension scored lower, suggesting room for improvement. Overall, users are satisfied with m-BCA, but system performance improvements are needed for service stability and sustained satisfaction.

Gastric disease is a common health problem that can disrupt daily activities if not properly treated. To aid the initial diagnosis process, this study developed a web-based expert system capable of diagnosing various types of gastric disease based on the symptoms experienced by the user. This system uses the Dempster-Shafer method to address uncertainty in decision-making by combining a number of pieces of evidence in the form of symptoms to determine the level of confidence in a disease. The system was developed using the PHP programming language and a MySQL database and designed for easy browser access. Testing demonstrated that the system was able to provide fairly accurate diagnostic results that closely approximated the results of consultations with medical professionals. This system is expected to become an initial solution for the public in quickly and independently recognizing symptoms of gastric disease.  

Hirschsprung’s disease is a congenital disorder caused by abnormal nerve cell development in the large intestine, leading to chronic intestinal obstruction in infants. This condition often manifests through symptoms such as constipation, abdominal distension, vomiting, and failure to thrive. The weak immune system of infants makes them highly susceptible to bacterial infections and further complications. At Bidadari General Hospital, there were 110 patients suspected of having Hirschsprung’s disease. One of the major challenges in managing these cases is the limited number of medical specialists, particularly pediatricians and pediatric surgeons, resulting in long waiting times for accurate diagnosis, especially during peak service hours. To address this issue, this study applies the Dempster-Shafer method in an expert system to assist in diagnosing Hirschsprung’s disease based on clinical symptoms. The method effectively handles uncertainty and combines multiple pieces of medical evidence to produce more accurate diagnostic probabilities. The analysis results show that from the selected symptoms, the highest diagnosis probability corresponds to short-segment Hirschsprung’s disease with a confidence level of 71.54%. These findings suggest that the Dempster-Shafer method can serve as an effective alternative tool to support early and accurate diagnosis of Hirschsprung’s disease in infants.

This study aims to evaluate user satisfaction with the Inspekta Application at PT PLN UP2D S2JB using the PIECES Framework approach, which covers six key aspects: Performance, Information, Economy, Control, Efficiency, and Service. Data was collected through questionnaires distributed to 30 respondents who are active users of the application. The analysis results show that all PIECES indicators scored in the "satisfied" category, with the highest score in the efficiency aspect (4.14) and the lowest in the economic aspect (3.80). Although the Inspekta application has generally had a positive impact on operational efficiency and reporting processes, improvements are still needed in data security and technical support. This study offers strategic recommendations to enhance application quality and support the organization’s overall performance.

Currently, MD Drafika faces challenges due to a lack of proper inventory management, such as safety stock regulations and reorder schedules. This has led to inventory levels that often fail to meet customer demand. The objective of this research is to optimize inventory costs at MD Drafika to enhance cost efficiency. This study employs a descriptive quantitative method, utilizing data collected through observation and interviews to explain the relevant aspects of the research object. The results of the research reveal an optimal order quantity and a reduction in inventory costs. Inventory optimization was achieved by adjusting safety stock levels and reorder points. The calculations for 2023 showed an optimal order quantity of 3,349 pieces, with four purchasing cycles within the period. The safety stock was determined to be 945 pieces, and the reorder point was 992 pieces. The cost difference between the EOQ method and the company’s current approach amounted to IDR 1,179,928.

This research analyzes the performance of the Academic Information System (SIAKAD) in supporting student tuition payments at STMIK Widuri using the PIECES method (Performance, Information, Economy, Control, Efficiency, Service). SIAKAD aims to streamline academic administration and enable online payments. However, issues such as system access delays, especially near payment deadlines, still occur, negatively impacting students' academic services and resulting in administrative penalties. The study employed data collection techniques through observation, interviews, questionnaires, and literature review. The PIECES framework was applied to evaluate six key indicators: performance, information, economy, control, efficiency, and service. The findings reveal that all indicators achieved an average score above 3.80, indicating a "good" system performance. Nonetheless, further improvements are necessary, particularly in terms of access speed and data security, to minimize user difficulties. The study concludes that optimizing the SIAKAD system is crucial for achieving effective and efficient payment processes. Recommendations include enhancing service quality, improving information accuracy, and strengthening data security. This optimization is expected to increase user satisfaction and support the institution's financial management stability.

An information system is a series that includes aspects of software, hardware and brainware in a structured manner with performance in a process that is interconnected so as to create a certain desired product, then the development of website-based system infrastructure can make it easier to data warehouse electronic products for both incoming and outgoing goods. for the admin, however, from the ongoing data warehouse process there are several problematic factors that influence it, namely, electronic product warehouse data collection for incoming and outgoing goods still uses a simple Microsoft Excel format which takes a long time and there are many warehouse data collection archives on computer storage as reports so it is vulnerable to viruses.

Azhari Bakar Bread Factory is an MSME domiciled in Rejowinangun, Kotagede, Yogyakarta. In the production process, this factory can produce 7807 pieces of bread in a month, of the total production that month 57 pieces of bread are defective. To reduce defects, quality control is needed. Quality control aims to produce products in the form of goods or services that comply with the desired and planned standards, as well as improve the quality of products that do not comply with predetermined standards and possibly maintain appropriate quality. This research uses the Six Sigma and Kaizen methods by showing factual data and comparing it with existing theories to find things that need to be added, improved, or maintained. This research found that the sigma process capability calculated for 1 month was 2.97 with a possible damage of 3661.21 for one million production. From these results, it can be said that the company has not implemented quality control completely properly and correctly because it is still far from the target level of 6 sigma, therefore the company needs to carry out quality control on defective products. The factor that causes production defects is the human factor. machines, methods, materials, and environment.

Azhari Bakar Bread Factory is an MSME domiciled in Rejowinangun, Kotagede, Yogyakarta. In the production process, this factory can produce 7807 pieces of bread in a month, of the total production that month 57 pieces of bread are defective. To reduce defects, quality control is needed. Quality control aims to produce products in the form of goods or services that comply with the desired and planned standards, as well as improve the quality of products that do not comply with predetermined standards and possibly maintain appropriate quality. This research uses the Six Sigma and Kaizen methods by showing factual data and comparing it with existing theories to find things that need to be added, improved, or maintained. This research found that the sigma process capability calculated for 1 month was 2.97 with a possible damage of 3661.21 for one million production. From these results, it can be said that the company has not implemented quality control completely properly and correctly because it is still far from the target level of 6 sigma, therefore the company needs to carry out quality control on defective products. The factor that causes production defects is the human factor. machines, methods, materials, and environment.

Toast is a common and popular food all over the world. Toast is generally made from slices of bread that are toasted until golden brown on the outside and soft on the inside. The basic bread used varies, from white bread to whole wheat bread, and can be cut in various shapes. The toasting process is a key stage in making toast, where the pieces of bread are toasted until they reach the desired doneness. Fillings are an important element in toast, with various options such as butter, jam, cheese, chocolate and nuts. Bread ingredients such as bread, butter, canned milk, etc. are a problem. If one of these ingredients is not met then production in the bakery business will be hampered. Therefore, to find out what variables hinder optimal value in the bakery business, mathematical modeling can be created using the simplex linear method program.

Pelacakan alumni (tracer study) menjadi salah satu kegiatan yang sangat penting penting untuk dilakukan secara berkala dan konsisten. Pelacakan alumni sebenarnya merupakan salah satu bagian dari pengembangan universitas atau perguruan tinggi yang berkelanjutan. Hasil pelacakan alumni yang baik akan menghasilkan inputan yang baik pula pada universitas khususnya program studi untuk mengembangkan kurikulum dan model pembelajarannya. Sistem pelacakan alumni dibangun berbasis website dengan metode pengembangan sistem prototipe. Pengembangan sistem dimulai dengan pengumpulan data pada objek dan pengguna melalui metode wawancara dan observasi. Setelah itu dilakukan analisa sistem menggunakan metode PIECES dan dilanjutkan dengan perancangan sistem menggunakan metode Unified Modelling Language (UML). Penelitian ini menghasilkan model awal sistem pelacakan alumni yang kedepannya akan terus dikembangkan sesuai dengan perkembangan peraturan dan kebutuhan penggunanya.

Pengembangan sistem informasi akademik bertujuan untuk memberikan sarana dasar kepada perguruan tinggi. Sistem informasi akademik diperlukan untuk mengelola seluruh kegiatan akademik diantaranya mengelola kartu rencana studi, mengelola kartu hasil studi, mengelola data dosen dan tenaga kependidikan, mengelola data mahasiswa, mengelola kelas, mengelola pertemuan dan presensi. Memiliki sistem informasi akademik akan mengurangi resiko keamanan data serta mendukung kemandirian pengelolaan teknologi informasi. Pengembangan sistem informasi ini menggunakan metode penghimpunan data menggunakan metode tanya jawab (interview) dan pengamatan lapangan. Performance, Information, Economics, Control, Efficiency dan Service adalah metode PIECES yang akan digunakan dalam menganalisa sistem. Unified Modelling Language (UML) adalah metode perancangan sistem yang digunakan dalam penelitian ini. System engineering, Requirement analysis, Design, Coding, Testing dan Maintenance adalah metode pengembangan sistem Waterfall yang peneliti gunakan. Sistem informasi akademik dikembangkan sesuai kebutuhan institusi saat ini tetapi seiring perkembangan peraturan dan kebutuhan institusi maka perlu dilakukan evaluasi kinerja secara periodik.

Penelitian ini bertujuan untuk mengetahui penerapan sistem informasi akuntasi aplikasi moka dengan metode pieces pada Kafe Janji Jiwa 995 Comal. Metode penelitian yang digunakan adalah metode deskriptif kualitatif dengan 8 narasumber dari karyawan kafe janji jiwa 995 Comal. Hasil penelitian menunjukan bahwa bagan proses bisnis Kafe janji jiwa 995 Comal yang digambarkan menggunakan Diagam arus data yang terdiri dari: Proses transaksi penjualan, Laporan penjualan perhari, Setor pendapatan harian ke rekening owner. Hasil analisis dengan menggunakan enam komponen kerangka kerja pieces (performance, information, economy, control, effeciency, service) dapat dikatakan aplikasi moka tidak sesuai dengan enam kerangka kerja metode pieces dikarenakan terdapat tiga komponen pieces yang tidak sesuai dalam mendukung sistem informasi akuntansi pada kafe janji jiwa 995 Comal yaitu pada indikator performance, indikator control, dan indikator service. Indikator performance terjadi jeda selama 90 detik dikarenakan terdapat orderan masuk dari aplikasi gobiz, grab merchant, jiwa+ sehingga membuat kinerja tablet menjadi berat dan mengakibatkan terhambatnya proses penginputan transaksi penjualan. Indikator control tidak ada keamanan saat mengakses aplikasi moka dikarenakan pemilik usaha tidak mewajibkan setiap karyawan memiliki id atau akun untuk mengakses aplikasi moka sehingga apabila ada pihak yang tidak bertanggung jawab maka mudah untuk mengakses aplikasi moka karena tidak ada keamanan untuk mengakses aplikasi moka. Indikator service terdapat kesalahan yang disebabkan oleh human error seperti karyawan salah menginput produk yang dipesan sehingga pelanggan mengajukan refund pembelian pada saat transaksi penjualan maka output yang dihasilkan oleh aplikasi moka tidak akurat karena jumlah uang yang didapat tidak sesuai dengan jumlah nominal pada aplikasi moka.