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This study aims to simulate the M/M/1 queueing system using Python through a Modeling and Simulation approach supported by the Discrete-Event Simulation (DES) method. The objective of the research is to analyze key performance indicators of queueing behavior, including arrival time, service time, waiting time, queue length, and server utilization. The methodology employs DES, which models system behavior based on discrete events such as customer arrivals, service initiation, and service completion. The simulation generates stochastic arrival and service times using Poisson and exponential distributions, respectively. The results indicate that the DES-based M/M/1 simulation accurately reflects theoretical queueing behavior, showing increases in waiting times and queue lengths when arrival rates approach service rates, while server utilization corresponds to system load intensity. The findings demonstrate that DES is an effective approach for analyzing queue performance and can be extended to more complex models such as multi-server systems, priority queues, and predictive simulations using artificial intelligence.

This study discusses the design of visual branding for Ederma Clinic Semarang through influencer collaboration content. The researcher acts as the influencer to produce creative visual content that represents Ederma Clinic’s identity, increases engagement, and strengthens brand awareness among young women audiences. The research method used is qualitative descriptive with data collection through observation, interviews, documentation, and content analysis. The results show that influencer collaboration can improve brand perception, social media engagement, and customer interest in Ederma Clinic. The designed visual content successfully strengthens brand positioning as a trusted and modern beauty clinic.  

This study aims to examine the contribution of business ethics and the implementation of Corporate Social Responsibility (CSR) to the business sustainability of the Micro, Small, and Medium Enterprise (MSME) Depot Air Barokah in Medan City. Using a case study approach, the research explores how ethical practices in service, honesty in product quality, and social concern for the environment and surrounding community can build consumer trust and enhance business competitiveness. These ethical and social dimensions are seen as essential components in sustaining long-term business operations, especially in competitive markets. Data were collected through interviews, direct observations, and supporting documentation, and were analyzed using a descriptive qualitative method to provide a comprehensive understanding of the enterprise's practices. The results indicate that the application of ethical and socially responsible business practices has a positive impact on customer loyalty, brand image, and the operational sustainability of Depot Air Barokah. Therefore, MSMEs that consistently uphold business ethics and implement CSR not only achieve economic benefits but also foster harmonious relationships with consumers, stakeholders, and the broader community.

The rapid expansion of e-commerce in Indonesia has resulted in a significant rise in the number of customer reviews, which serve as a valuable source of insight for understanding consumer satisfaction. This study aims to classify or identify sentiments from product reviews on the Tokopedia platform into three categories, using the Support Vector Machine algorithm. The classification method data were ethically collected through web scraping and include review text, ratings, and the number of “likes.”  The preprocessing stage involved several NLP techniques such as pre-procesesing data representation was generated using the Term Frequency–Inverse Document Frequency method, while the issue of class imbalance was addressed using the Synthetic Minority Over-sampling Technique.  Based on the test results, the SVM model achieved an accuracy of 79.48% on the test data using a linear kernel, showing the best performance in classifying positive sentiments. However, the classification of neutral and negative sentiments still requires improvement. This study demonstrates that the combination of the TF-IDF method, additional numerical features, and data balancing techniques can produce an an efficient sentiment analysis model within the e-commerce domain.

The mentoring program was implemented to address issues related to the low practice of financial recordkeeping and the suboptimal utilization of digital marketing among Aisyah Laundry MSMEs in Dusun Gatak. The objective of this activity was to implement a simple financial recording system, build a basic understanding of the separation between personal and business finances, and introduce digital marketing strategies aimed at enhancing business management effectiveness. The methods employed included a participatory approach through initial condition observation, socialization of the benefits of recordkeeping, training in the use of simple bookkeeping formats, digital content training, and outcome evaluation. The results demonstrated a significant improvement in the regularity of daily transaction recording, administrative skills, and the establishment of a more systematic financial management pattern. In the marketing aspect, activation of the business’s Instagram account contributed to expanded service information outreach, increased customer interest, and a shift in the business owner's perspective regarding the importance of digital media. These findings affirm that hands-on mentoring is effective in improving financial and digital literacy among MSMEs and in encouraging sustainable changes in business behavior.

The development of digital technology has greatly influenced consumer behavior, particularly among Generation Z, who are dominant in Indonesia's hijab fashion market. This shift requires businesses to adapt their strategies to meet the dynamic, trend-driven, and digitally-savvy preferences of young consumers. This study examines the business development strategy of Leenavie.id, a hijab brand, and the challenges it faces in targeting Generation Z. Using a qualitative approach with case study methodology, in-depth interviews with business owners were conducted to gain insights into the business development process. The findings show that Leenavie.id focuses on product innovation, competitive pricing, social media as a primary distribution and promotion channel, and leveraging e-WOM for brand awareness and emotional connections with consumers. Success indicators include a high repeat order rate, positive market response, and external collaboration offers. However, challenges such as limited capital, small production capacity, and underutilization of the marketplace hinder scalability. The study suggests that enhancing digital adaptation, strengthening operational capacity, and fostering strategic collaborations are key to improving the competitiveness and sustainability of local hijab businesses. Future research should include consumer perspectives for a more comprehensive understanding of customer behavior and loyalty.

Penelitian ini bertujuan untuk mengembangkan sistem pendukung keputusan yang dapat membantu tim Marketing Officer (MO) PT. Alvarel Technology Innovation dalam menentukan status pelanggan secara objektif dan terstruktur. Sistem ini dirancang menggunakan kombinasi metode Analytical Hierarchy Process (AHP) dan Weighted Sum Model (WSM). Metode AHP digunakan untuk menentukan bobot kriteria yang meliputi Potensial Pasar, Urgensi, Finansial, serta Hubungan dan Reputasi, dengan memastikan konsistensi matriks perbandingan berpasangan. Hasil pembobotan kemudian digunakan dalam metode WSM untuk melakukan perhitungan skor total pelanggan dan menyusun pemeringkatan status berdasarkan nilai tertinggi hingga terendah. Data penelitian diperoleh dari catatan internal perusahaan dan wawancara dengan Marketing Officer, dengan jumlah sampel 30 pelanggan. Hasil pengujian menunjukkan bahwa sistem dapat menghasilkan peringkat status pelanggan dalam lima kategori, yaitu potensial, prospek, pending, pasif, dan skip. Temuan utama memperlihatkan bahwa kategori prospek memperoleh skor tertinggi dan menjadi prioritas tindak lanjut. Dengan demikian, sistem pendukung keputusan berbasis AHP–WSM ini mampu mengurangi subjektivitas, meningkatkan efisiensi, serta memberikan rekomendasi yang lebih akurat dan terukur untuk mendukung pengambilan keputusan strategis perusahaan dalam pengelolaan pelanggan.

The implementation of Good Corporate Governance (GCG) is a crucial foundation for maintaining public trust in Indonesia’s Islamic banking sector. Yet, the effectiveness of GCG is often debated because formal practices tend to be technocratic and procedural, lacking deeper internalization of Sharia Ethical values. This study analyzes the application of GCG based on Sharia Ethics at Bank Syariah Indonesia (BSI), with a case study at KCP Sawangan Sari Plaza. Using a qualitative approach and case study method, data were collected through source triangulation, including in-depth interviews with the Branch Operation and Service Manager (BOSM), customer service officers, and tellers. These interviews were supported by participatory observation and an examination of corporate documents. The findings reveal no significant discrepancy between formal GCG practices and Sharia Ethics at the research site. GCG principles such as Transparency, Accountability, Responsibility, and Fairness are consistently implemented and rooted in ethical values like Amanah (trustworthiness), Shidq (honesty), and ’Adl (justice). A key insight from this study is the shift in employee motivation from fear-based compliance toward value-based compliance. This shows that the integration of GCG and Sharia Ethics is strongly influenced by ethical leadership and the development of a spiritual work culture at the branch level.

This study aims to examine the influence of brand image, location, and price on customers’ purchase intention at the USD Bundle thrifting store in Kediri. This research employed a quantitative approach using purposive sampling, involving 152 respondents who were active customers of USD Bundle. Data were analyzed through classical assumption tests, multiple linear regression, t-test, and F-test using SPSS 25. The results indicate that brand image, location, and price each have a positive and significant effect on purchase intention. Simultaneously, these variables also show a positive and significant impact, with a coefficient of determination (R²) of 0.954, meaning that 95.4% of the variation in purchase intention is explained by brand image, location, and price. These findings highlight that a strong brand image, strategic location, and competitive pricing play essential roles in increasing customer purchase intention in thrifting businesses, particularly within urban environments such as Kediri City.

This study analyzes the gap in the implementation of Information Technology IT service management at an internet service provider in Purwokerto using the ITIL V4 Service Value System SVS framework. The company faces a number of major problems, such as delays in incident handling, data fragmentation between operational applications, low automation in network monitoring, and suboptimal coordination between the technical and customer service divisions. The purpose of this study is to evaluate the level of compliance of current service practices with ITIL V4 SVS best practices and to formulate recommendations for improvements that can increase operational efficiency and service reliability. The research uses a qualitative descriptive method with a case study approach, with data collected from interviews and observations in the technical and customer service divisions, then analyzed based on the five main components of ITIL V4 SVS. The results show that the company has implemented several ITIL principles, particularly in terms of customer value focus and process simplicity, but the implementation of iterative feedback, data integration, and automation is still at a low level of maturity. This study concludes that strengthening the real-time monitoring system, increasing cross-divisional visibility, and establishing a Continual Improvement Register are important steps towards realizing more efficient, responsive, and sustainable IT service management.

The development of digital technology has changed the paradigm of MSME businesses, including in building brand image. This study analyzes strategies for enhancing brand image through digital business at Ayam Celup Juaro’s MSMEs in Medan City. The research method uses a qualitative approach with a case study design. Data were collected through in-depth interviews, participatory observation, and documentation studies. The results show that multi-platform digital integration (Instagram, TikTok, WhatsApp) is effective in building brand image. Instagram serves as a medium for visual representation of the brand, TikTok as a driver for acquiring new customers through viral content, and WhatsApp as a means of personal communication to maintain customer loyalty. The key factors for success are content consistency and timely service. The main obstacles faced are budget constraints and challenges in maintaining content consistency. This research provides practical contributions for SMEs in developing integrated digital strategies to enhance brand image in the era of the 4th Industrial Revolution.

This research aims to explore the role of service excellence in enhancing consumer loyalty in culinary MSMEs, with a case study at RM Kamang Jaya in Medan City. In facing intense competition in the food industry, excellent service becomes an important strategy to maintain and expand the customer base. A qualitative approach with a case study method was employed to deeply examine customer experiences, perceptions, and service practices through interviews, observations, and documentation. The findings show that the consistent application of service standards, friendly attitudes of staff, and attention to detail in service delivery greatly contribute to customer satisfaction and loyalty. Good service has been proven to encourage repeat orders, create positive experiences, and enhance word-of-mouth promotion. Despite some technical obstacles, such as order errors or menu limitations, the quick response and professional attitude of employees were able to minimize their impact. These findings confirm that service excellence not only meets the functional needs of consumers but also builds emotional attachment, which becomes the foundation of long-term loyalty. The implications of this research are significant for other MSME actors in designing superior service strategies to face increasingly complex business competition.

This study aims to analyze the operational strategies, promotional practices, and implementation of business ethics at the small and medium enterprise (SME) Warung Makan (RM) Bunda in Medan City. The research employs a case study approach with a qualitative-descriptive method. Primary data were collected through semi-structured interviews with the owner, employees, and selected customers using purposive sampling, complemented by participatory observation and document analysis such as sales records, simple financial reports, and promotional materials. Data were analyzed through inductive and deductive coding processes to identify key themes, including understanding of business ethics, implementation of marketing strategies, the impact of these strategies on customer loyalty and brand image, as well as challenges faced in business management. The validity of findings was strengthened through data source triangulation and member checks with key informants. The results indicate that the marketing and promotional strategies implemented have positively influenced the improvement of the business image and customer loyalty, although the SME still faces limitations in resources and market competition challenges. These findings provide important implications for the development of sustainable business strategies for SMEs in the culinary sector.

This study discusses the application of the law to the alleged facilitation of online gambling transactions by PT Espay Debit Indonesia Koe (DANA), which allegedly distributed funds of IDR 5.37 trillion in illegal activities. This case is in the spotlight because it shows the weakness of the digital financial supervision system in Indonesia and raises questions about the limits and forms of legal accountability of fintech operators in preventing misuse of services. The research method used is normative juridical with a descriptive qualitative approach, using primary, secondary, and tertiary legal materials to analyze applicable regulations and supervisory practices. The results of the study show that although DANA does not directly commit a criminal act of gambling, negligence in implementing transaction supervision mechanisms, including monitoring suspicious transaction patterns, can give rise to certain forms of legal liability. These findings underscore the importance of prudence and compliance with anti-money laundering regulations in fintech operations. This study recommends strengthening fintech regulations, implementing stricter Know Your Customer (KYC), increasing synergy between OJK, PPATK, and the Police, and establishing a more integrated and responsive digital transaction supervision system to prevent similar crimes in the future.

This study aims to analyze the implementation of Total Quality Management (TQM) in improving service quality at KPUD Tani Wilis, particularly in the supply and distribution of livestock feed. The research employs a descriptive qualitative approach with data collected through in-depth interviews and direct observations involving cooperative management, employees, and customers. Data were analyzed using an interactive model consisting of data reduction, data display, and conclusion drawing. The findings indicate that TQM implementation has been relatively effective, reflected through three key components: customer value strategy, organizational systems, and continuous quality improvement. Services are perceived as responsive, polite, and informative, supported by adequate delivery facilities. The main challenge lies in occasional delays in feed delivery caused by weather conditions, which affect customer perceptions of reliability. Overall, TQM contributes positively to service quality, customer satisfaction, and operational effectiveness, although further improvements in risk management and service consistency are needed to achieve optimal quality.

This study aims to analyze traders’ perceptions and behaviors toward the implementation of sharia principles in Islamic banking products and services. A descriptive qualitative approach was employed, involving traders at Parung Market selected through purposive sampling. Data were obtained through in depth interviews, observations, and documentation, then analyzed using thematic analysis through coding, categorization, and pattern identification. The findings reveal that most traders hold positive perceptions of core Islamic banking values such as fairness, transparency, and the prohibition of usury. However, their understanding of sharia contracts varies and is not fully comprehensive. Despite these positive perceptions, actual behavior does not always align, as traders often prefer conventional banks for business transactions requiring speed, efficiency, and more reliable digital services. This indicates a clear gap between religious intentions and economic practices, commonly referred to as the intention behavior gap. The study concludes that improving Islamic financial literacy, strengthening digital service innovation, and enhancing service quality are essential to promoting wider adoption of Islamic banking products.

This study aims to examine the influence of Social Media Marketing, Bundling Price, and Electronic Word of Mouth on Purchase Decisions for Spotify Premium, with Brand Awareness functioning as a mediating variable. A quantitative approach was applied using a survey method involving 120 Spotify Premium users in South Tangerang. The research instrument employed a Likert scale and was analyzed using Structural Equation Modeling with Partial Least Squares to evaluate validity, reliability, and causal relationships among variables. The results reveal that Social Media Marketing, Bundling Price, and Electronic Word of Mouth have positive and significant effects on both Brand Awareness and Purchase Decisions. Brand Awareness significantly mediates these relationships, strengthening the impact of digital marketing variables on subscription decisions. The findings demonstrate that consumer decision processes progress through attention, brand recognition, and conversion, shaped by exposure to digital content, perceived value of bundled pricing, and peer-generated reviews that reinforce trust and perceived service quality. This study highlights the importance of strategic and experience-driven digital marketing in increasing customer acquisition for subscription-based music streaming services.

The digital era demands that organizations be fast-moving, adaptable, and innovative. With the advancement of information technology, changes in work methods, global competition, and stakeholder demands are becoming increasingly complex. Knowledge Management (KM) plays an important role as a strategic mechanism for identifying, acquiring, storing, sharing, and utilizing knowledge to improve organizational effectiveness and efficiency. In this context, knowledge management becomes one of the important elements for organizations to enhance performance. Knowledge management is not just about collecting data or information, but how organizations can store, share, create, and utilize knowledge to gain a competitive advantage. This article aims to analyze the importance of knowledge management for organizational performance in the digital age, including how the digital era changes the dimensions of knowledge management, how knowledge management contributes to organizational performance, the challenges faced, and their implications. The data obtained for this study were gathered from observations thru interviews with relevant parties and a literature review study by examining the results of empirical research from the past five years (2020–2025). The method used was descriptive literature analysis of 15 scientific articles from accredited national journals. The analysis focuses on the relationship between knowledge management dimensions (knowledge creation, storage, sharing, and application) and organizational performance indicators (financial performance, innovation, productivity, and customer satisfaction). The study results show that the implementation of knowledge management significantly contributes to improving organizational performance, both directly thru increased efficiency and effectiveness of work processes, and indirectly thru strengthening a culture of innovation and organizational learning. This article asserts that an organization's success in the digital age is not solely determined by its ability to adopt technology, but also by its ability to manage and leverage knowledge as a strategic resource. Therefore, knowledge management needs to be systematically integrated into the organization's digital strategy, accompanied by strengthening a learning culture, human resource training, and adaptive information technology systems.

This study aims to examine how Generation Z in Sukoharjo Regency makes iPhone purchases based on their impressions of the brand and product quality. Generation Z is known to be highly tech-savvy, analytical, and selective in purchasing goods, especially mobile phones. With rapid technological advancements and intense competition among smartphone brands, it is crucial for companies to understand what aspects influence young consumers' purchasing decisions. We used a quantitative approach based on survey data obtained from 30 individuals who are current iPhone users or are considering purchasing one.The decision to buy is the dependent variable in this study, whereas product quality and brand perception are the independent variables. This data analysis examines whether these two separate factors influence customer purchasing decisions. According to the study, Generation Z purchases iPhones based on brand and product quality. Based on these findings, attracting young consumers as buyers depends on positive brand perceptions and high-quality product offerings. Marketing academics, especially those specializing in consumer behavior, can benefit from the theoretical contributions of this study, while business owners and marketers can use the practical implications of this research to better target Generation Z in the digital age. Gen Z's smartphone purchases are heavily influenced by brand image and quality.

This study aims to comprehensively examine the influence of digital marketing strategies, investment in digital technology, and customer engagement on the business performance of Micro, Small, and Medium Enterprises (MSMEs) with digital transformation as a mediating variable. A case study was conducted on the MSME Es Teh Djanoko Bayat. This research employs a quantitative methodology with a causal design. Data were collected through questionnaires distributed to 350 respondents and analyzed using the SmartPLS version 3 tool. The results indicate that digital marketing strategies and digital technology investment have a positive and significant effect on both digital transformation and performance improvement. Furthermore, digital transformation is proven to have a positive effect on performance. However, while digital customer engagement positively affects performance, it was found to have no significant effect on digital transformation. In conclusion, the effectiveness of digital marketing and technology investment are key drivers in the transformation process and company performance, while customer interaction impacts sales directly without triggering significant operational changes.