SupremeTech’s Expertise in the Process of Performance Testing

The Importance of Performance Testing and SupremeTech’s Expertise

Hello everyone, I’m Vu, a dedicated Quality Control professional committed to delivering software and applications that provide the best user experience. With over 12 years of experience in the industry, I am excited to share valuable insights on Performance Testing—an essential step to ensure that software functions smoothly and effectively before it reaches users. Even a slight delay can lead to customer loss in today's fast-paced era, making performance testing crucial for all businesses. How can systems maintain smooth operation during unexpected traffic spikes? How can we prevent crashes during peak times? The solution lies in performance testing. At SupremeTech, we provide high-quality performance testing solutions that guarantee your systems remain stable and efficient. 6 Notable Technology Incidents From the Past Healthcare.gov (2013): This insurance website crashed completely when it launched, leading to significant confusion among American citizens.Amazon Prime Day (2018): The e-commerce giant lost substantial revenue on the epic sale because the platform had crashed.Google Cloud (2019): A configuration issue caused Google Cloud to crash, affecting numerous primary services and highlighting the importance of performance testing.Zoom During the Covid Pandemic (2020): To meet the surge in online work demand, Zoom had to build its infrastructure rapidly.Facebook Outage (2021): A configuration error caused the entire Meta ecosystem to go down for 6 hours, resulting in significant reputational and financial losses.PlayStation Network (2023): Shortly after launching a new game on PlayStation 5, Sony was unprepared for gamers' inability to download it. These incidents serve as a wake-up call for all businesses. No system is immune to performance issues if it hasn't been thoroughly tested and optimized. Here are some key reasons why companies should prioritize Performance Testing for their products: Prevent Revenue Loss: A slow or crashing system can drive customers away, leading to lost revenue.Protect Brand Reputation: Major performance incidents often leave a negative impression, damaging credibility.Prepare for Growth: Testing allows you to scale operations confidently without worrying about system issues. What is Performance Testing? Performance testing is a method of testing, measuring, and evaluating a system's speed, stability, and load capacity to ensure it operates effectively under various conditions. Overview of Performance Testing: Load Capacity Assessment: Determining the maximum load limit that the system can handle.Identifying Bottlenecks: Finding weaknesses as a way to enhance performance.Improving User Experience: Ensuring users have a smooth experience while protecting brand reputation. Types of Performance Testing Load Testing: Evaluating load capacity by simulating large numbers of concurrent users. We identify the system's load threshold and address weaknesses before issues arise.Stress Testing: Pushing the system to its maximum limits to test its response in worst-case scenarios, ensuring safety.Endurance Testing: Assessing system durability when operating continuously over long periods to ensure stable performance.Spike Testing: Simulating sudden spikes in traffic, such as during major sales campaigns, helping businesses prepare for peak hours. SupremeTech's Exceptional Capabilities Flexible Integration with Various Platforms: We can conduct tests across diverse platforms, from mobile applications and websites to complex systems, ensuring optimal performance for all platforms.Detailed Data Analysis: We not only identify bugs but also provide detailed reports with optimization recommendations based on real data.  This helps you effectively address performance issues.Flexible Automated Updates: SupremeTech's automated systems allow businesses to adjust and optimize their processes easily as they grow.Dedicated Consulting Team: SupremeTech's experienced experts are ready to support you from planning through implementation and maintain high efficiency. SupremeTech - Your Partner for Optimal Performance At SupremeTech, we are committed to researching advanced technologies, maintaining professional workflows, and employing a passionate team to deliver exceptional value in all our products and services. Performance testing is more than just a technical task; it is essential for maintaining your reputation and achieving market success. Allow SupremeTech to enhance your products for today and the future. For more insights into Performance Testing, check out our blogs below: The Process of Performance Testing at SupremeTechThe Ultimate Guide to an Essential JMeter Performance Testing ToolPerform API Testing using Postman

 Exploring API Performance Testing with Postman

Hello, tech enthusiasts and creative developers! I’m Vu, the author of SupremeTech’s performance testing series. In the article “The Ultimate Guide to JMeter Performance Testing Tool,” we explored JMeter's strengths and critical role in performance testing. Today, I’m introducing an exciting and straightforward way to do API performance testing using Postman. What is Postman? Postman is a robust API (Application Programming Interface) platform that empowers developers to quickly design, test, document, and interact with APIs. It is a widely used tool for testing APIs, which is valuable in software development, primarily web or mobile app development. Why Use Postman for API Testing? Postman is favored by software developers, testers, and API specialists because of its many advantages: User-Friendly Interface: Postman’s intuitive design makes it easy to use.Supports Diverse HTTP Methods: It handles requests such as GET, POST, PUT, DELETE, PATCH, OPTIONS, and more.Flexible Configuration: Easily manage API request headers, parameters, and body settings.Test Automation with Scripts: Write JavaScript code within the Tests tab to automate API response validation.Integration with CI/CD: Postman's CLI tool, Newman, seamlessly integrates with CI/CD pipelines, enabling automated API testing in development workflows.API Documentation and Sharing: Create and share API documentation with team members or clients effortlessly. Performance API Testing on Postman As of mid-2024, Postman introduced a new feature allowing users to perform API performance testing quickly and conveniently. With just a few simple steps, you can evaluate your API’s performance under high load and ensure its strength. Step 1: Select the Collection for Performance Testing Open Postman and navigate to the Collections tab on the left sidebar.Choose the Collection or Folder you want to test. Step 2: Launch the Collection Runner After selecting your desired Collection or Folder, click Run Collection to open the Collection Runner window.In the Runner, select the APIs you want to include in the performance test.Switch to the Performance tab and choose a simulation method:Fixed: Simulates a fixed number of users.Ramp Up: Starts with a few users and gradually increases.Spike: Introduces a sudden surge in traffic followed by a reduction.Peak: Increases traffic to a high level and sustains it for a period. Step 3: Adjust Virtual Users and Test Duration Configure the Virtual Users and Test Duration settings to simulate the desired load.Start with smaller values, then gradually increase them to gain a clear understanding of your API's performance under varying conditions. Step 4: Run the Test Click Run to start the performance test.During the test, Postman will send API requests and provide real-time data on:Response Time: The API's duration to respond to a request.Error Rate: The percentage of failed requests.Throughput: The number of API requests the system can handle per second. Step 5: Analyze the Report Once the test is complete, Postman generates a detailed report, including: Response Time: Tracks the duration it takes for APIs to process requests.Error Rate: Highlights any issues encountered during testing.Throughput: Measures the system's capacity to process requests under load. Use these metrics to evaluate whether your API performs efficiently under heavy traffic. These insights will guide you in optimizing your API for better performance. Leverage Customization for Realistic User Simulation Postman allows you to customize request data for each virtual user. You can upload a CSV or JSON file with unique datasets if you want different data for each user. This feature enables a more accurate simulation of real-world user behavior. After each test run, Postman provides an easy-to-understand report highlighting the areas for improvement. You can track performance changes and compare test results to identify weaknesses and refine your API. Test and Optimize Your API with Postman With Postman’s new performance testing feature, API optimization has never been easier. It helps you quickly identify and address potential issues to ensure your system is always ready to handle user demands effectively and reliably.   For more details and step-by-step guidance, check out the following resources on the Postman website:   OverviewRun a performance testView performance test metricsDebug performance test errorsInject data into virtual users Start your API performance optimization journey with Postman and prepare your system to meet every demand seamlessly. >>> Explore more articles about performance testing: SupremeTech’s Expertise in the Process of Performance Testing

The Ultimate Guide to JMeter Performance Testing Tool

At SupremeTech, we are dedicated to creating technology products that provide the best user experience. In this article, I will introduce you to JMeter performance testing, a powerful and flexible tool that significantly enhances the quality of technology products. With its ability to support various protocols, JMeter allows you to test the performance of a wide range of applications, from web services to APIs and even real-time applications. Let’s explore the types of applications JMeter can be applied to and the outstanding features it offers! For more insights into Performance Testing, check out our blogs below: The Process of Performance Testing at SupremeTechPerform API Testing using Postman Applications Suitable for JMeter Web Applications For applications using HTTP/HTTPS protocols, such as e-commerce sites, blogs, or corporate websites, JMeter can help assess response times and system performance. RESTful APIs JMeter supports load testing for APIs, measuring response times, and checking stability. Real-Time Applications (WebSocket Applications) For applications that require real-time communication, such as chat applications or online games, JMeter offers performance testing with the WebSocket Sampler Plugin, ideal for messaging systems or online monitoring. Mobile Applications JMeter can simulate requests from mobile applications to their backend APIs, such as food delivery apps or digital banking services. Database-Driven Applications For applications that rely on database queries, like CRM or ERP systems, JMeter supports performance testing using the JDBC Request Plugin to evaluate database efficiency. Custom Protocol Applications For applications using unique protocols like TCP or UDP, JMeter allows for performance simulation and testing using the TCP Sampler, which benefits  IoT applications or data transmission over local networks. Why Should Use JMeter Performance Testing Tool? Advantages Free and open source: JMeter is a cost-free tool that is easy to use.Multi-protocol support: It supports protocols like HTTP, FTP, SOAP, REST, etc.User-friendly interface: It provides an intuitive graphical interface suitable for beginners.Scalability: Supports plugins and can integrate with CI/CD tools like Jenkins.Detailed measurement: Offers comprehensive reports on performance metrics such as latency, error rates, and response times.Distributed testing: Allows load testing across multiple servers to simulate high traffic volumes. Disadvantages    Performance limitations under heavy load: JMeter may struggle with extremely high loads due to resource consumption.Not optimized for UI testing: JMeter might not be the best choice if you need to test complex user interfaces.Limited scripting flexibility: While it uses BeanShell and Groovy scripts, it lacks the flexibility of some other tools.Complex result analysis: Default reports from JMeter may not be intuitive and require external tools for advanced analysis.Learning curve: The complex features of JMeter can take time to master. What You Should Know About JMeter Plugins Plugins are an integral part of JMeter that significantly enhance its testing capabilities. Some notable plugins include: JMeter Plugins Manager: Easily manage plugins without manual configuration.PerfMon Metrics Collector: Monitors system resources like CPU, RAM, Disk, and Network during tests.JDBC Request Plugin: Tests database performance through JDBC.WebSocket Sampler: Supports WebSocket protocol testing for real-time applications.Throughput Shaping Timer: Adjusts request rates to achieve desired throughput.ElasticSearch Backend Listener: Integrates with ElasticSearch and Kibana for data analysis and visualization. Types of Reports Provided by JMeter JMeter offers various reports to help analyze and evaluate system performance: Dashboard Report: Provides an overview with graphs and data tables to track throughput, response times, and error rates.Aggregate Report: Supplies detailed aggregated data about each sampler or group of requests.Graph Results: Displays graphs showing changes in response times and throughput over time.Response Time Distribution: Shows response time distribution to identify acceptable thresholds. JMeter is a necessary tool for testers performing performance testing across various applications and protocols. Despite some limitations, its support for plugins and detailed reporting makes monitoring and analyzing system performance easy. Best of all, it is completely free! Make the most of JMeter to ensure your application runs smoothly in testing and production environments.

The History of Loyalty Point Culture in Japan and What Businesses Can Learn From It

In Japan, loyalty point culture has become second nature. From everyday shopping to train rides and online payments, points are deeply rooted into daily life in a way that few other countries can match. What started with simple paper stamps more than a century ago has evolved into mobile-first ecosystems that shape how people shop, save, and even invest. This article takes you through the fascinating history of loyalty point culture in Japan, how the digital era is reshaping the habit, the many ways consumers now earn and use points, and the vibrant poikatsu subculture that has turned point collecting into a lifestyle. The Roots of Japanese Loyalty Point Culture Obsession Japan’s passion for loyalty points has a surprisingly long history. The very first known program dates back to 1916, when a clothier in Kita Kyushu City, Kuga Gofukuten, rewarded repeat customers with paper stamps that could later be exchanged for goods. In 1928, confectionery maker Ezaki Glico, the company behind the world-famous snack Pocky, took the idea to a national scale. Glico placed coupons inside candy boxes, and children who collected 20 coupons could trade them in for a toy or gift. This strategy turned candy into a fun challenge and built emotional loyalty to the brand. The loyalty culture grew slowly at first. It wasn’t until the late 1950s that American-style trading stamps arrived in Japan. Trading stamps were small coupons given out by stores for each purchase. Shoppers could paste them into booklets, and when the booklet was full, redeem it for merchandise from a catalog. By the 1980s, loyalty took a leap forward with the spread of cash cards and credit cards. Card issuers began attaching rewards to encourage spending. In 1984, airline ANA launched its first mileage card, letting travelers turn flights into redeemable points. A year later, in 1985, electronics retailer Yodobashi Camera introduced one of the country’s earliest retail point cards, giving customers a discount on purchases. For shoppers, it felt like free money but for retailers, it was a clever way to keep customers coming back instead of going to another shop. The movement accelerated quickly. By the late 1990s, loyalty cards were everywhere not only in retail, but also in department stores, hotels, and banks. From this point onward, Japan entered the modern era of nationwide point networks, many of which still dominate daily life today. In 2002, Rakuten launched its Super Points program, first as a simple cashback on its e-commerce site, but soon expanding into a vast ecosystem that covers credit cards, travel bookings, banking, and even mobile services.  Just a year later in 2003, Culture Convenience Club (the company behind Tsutaya video rentals) introduced T-Point, Japan’s first large-scale coalition loyalty program. Suddenly, customers could earn and spend points not just in one store, but across convenience stores, gas stations, restaurants, and online platforms.  In 2007, Seven & i Holdings, operator of 7-Eleven, rolled out Nanaco, a prepaid e-money card that also rewarded shoppers with points for everyday purchases. Ponta, launched in 2010 by Lawson and GEO, later deepened its reach through a tie-up with telecom giant. Meanwhile, NTT Docomo brought its massive subscriber base into the loyalty world with d POINT in 2015, quickly extending the program beyond telecom to retail, dining, and even Amazon Japan. The latest wave came from the mobile payment boom: in 2018, SoftBank-backed PayPay launched aggressive cashback campaigns that made QR code payments mainstream, later rebranding its system as PayPay Points in 2022. How Digital Eras is Changing Collecting Loyalty Points Habit of Japanese Looking back, it’s clear that the tools have changed, but the habit itself has not. From paper stamps in a clothes shop to QR-code payments at a convenience store, Japanese consumers have always loved the small reward that comes with everyday spending. Whether traditional or modern, the joy of earning points remains the same. A survey by NTT Docomo revealed just how deep point based loyalty program culture runs: over 80% of Japanese people between 15 and 79 years old actively look for ways on how to get loyalty points in their daily shopping. Imagine buying the same bottle of green tea at two different stores. Most people will choose the one that gives them points. For brands, this shift is both an opportunity and a challenge. On the one hand, digital platforms make it possible to connect loyalty across physical stores, e-commerce sites, and mobile apps, creating powerful ecosystems. On the other hand, companies must be careful: how to apply digital transformation to your business without losing the identity and trust that your brand has built over decades? The lesson from Japan’s loyalty story is that technology should not erase tradition but it should amplify it. The habit of collecting points has lasted more than 100 years and will continue to last for a long time. Brands that adapt loyalty to new digital platforms while preserving the sense of authenticity will succeed. Many Interesting Ways Japanese Earn Points In Japan, how to get loyalty points is no longer just about swiping cards at the cashier. Today, most point based loyalty programs are tied directly to mobile apps, making it possible to collect loyalty points rewards almost everywhere and in surprisingly fun ways. 1. Online Shopping & Mobile payment apps This is the most common way to get loyalty points, for platforms like Rakuten Ichiba give Rakuten Super Points when you buy anything online, you will often get 1% back, sometimes much more during special “bonus point” events. Mobile payment apps like PayPay or Rakuten Pay automatically give you points when you pay with your phone. Many Japanese consumers now choose cashless payments not just for convenience, but because every tap of their phone means a few extra points earned. 2. Commuting & Public Transport The JRE (Japan Rail East) provides a loyalty points program via their Suica card (e-money transport). When using Suica, especially its mobile version, you can earn points with bonus rewards on off-peak hours or repeating use the same train line over ten times a month. These points aren’t just for travel. They can be earned or redeemed at JRE Mall, convenience stores, food stalls, and vending machines in stations. Travellers can even use them for Suica top-ups or seat upgrades on bullet trains. Since Japanese train stations are filled with shops and vendors, the program feels both convenient and rewarding in everyday life. 3. Streaming, Subscriptions and Digital Content Even your entertainment choices can earn you point based loyalty rewards. For example, Rakuten integrates its Super Points into its digital ecosystem: buying an eBook, subscribing to a movie streaming service, or even booking an online concert can all add points to your balance. What makes this powerful is that the points you earn for leisure can later be spent on essentials like groceries or utility bills. This blurs the line between fun spending and serious savings making loyalty points a subtle but effective part of household budgeting. 4. Special Promotions and Bonus Campaigns One of the reasons point based loyalty programs remain exciting in Japan is the constant stream of promotions. Japanese consumers often treat these events like mini holidays, planning big purchases to match promotion days. The campaigns are usually gamified like “stamp rallies” where collecting digital stamps across partner stores unlocks extra points. It’s not just about saving, it’s about the thrill of chasing the deal. This playful approach keeps loyalty systems fresh and prevents customers getting bored of them. 5. Cross-Industry Ecosystems What sets Japan apart is how connected loyalty programs have become. Instead of being limited to one store or chain, many systems now span across industries. This ecosystem model makes loyalty programs much more sticky. For businesses, this strategy doesn’t just keep customers coming back, it ties them into a long-term relationship where loyalty points are the “glue” holding everything together. 6. Mobile Apps and Gamification Japanese loyalty programs have taken full advantage of gamification. For example, PayPay adds lottery-style raffles where every transaction is a chance to win bonus points. Some apps even push eco-friendly missions like bringing your own bag to a store that grants loyalty points rewards for sustainable behavior. This playful style has turned point collection into something closer to a hobby than a financial tool. >>> Read more related articles:  Restaurant Mobile Ordering App: Transform or Lag behind the CompetitionHow Loyalty Apps Can Improve Customer Lifetime Value (CLV) Interesting Stories from the Poikatsu Subculture In Japan, collecting points is not just a financial habit but it’s a hobby, and for some, even a lifestyle. This has given rise to a colorful online subculture, where people swap tips, track campaigns, and share their point-hunting adventures. There is a huge Japanese influencer called Chuken. On Twitter, he shares strategies on how to maximize loyalty points and proudly calls himself a “point star” He claims to earn over 1 million yen (around $10,000) worth of points a year enough to cover bills, vacations, and even beauty treatments. For him, points are not pocket change, they are a second income stream. Then there’s Sekko, a single mother who has turned poikatsu into both a money-saving tool and an online persona. Her audience, mainly parents, follows her for hacks like redeeming enough points to get a year-long Disneyland pass for her child. She’s even appeared on national TV shows, proving that loyalty programs in Japan are big enough to push ordinary people into the spotlight. On YouTube, Ryogakucho has built a following of more than 600,000 subscribers by teaching point-hacking in step-by-step videos. His tutorials cover everything from Rakuten’s Super Point Up system to time-limited campaigns, often delivered with a cartoon mascot cheering along. For many viewers, his channel turns what could be dry financial advice into something closer to entertainment. While others poikatsu youtubers post daily point-tracking charts, mapping which payment apps or cards are offering the best deals. Fans treat this like checking stock market updates except the currency is loyalty points instead of shares. Conclusion The history of loyalty point culture in Japan reveals more than just how rewards have changed over time, it shows how deeply poikasu culture is in consumers' minds. From stamps and coupons to digital wallets and online platforms, the tools may look different, but the love for points has never faded. For many Japanese consumers, collecting points is not only about saving money, it’s about the fun, creativity, and community that come with it. And the story doesn’t end here. In the next article, we’ll look at the power of Japan’s major point networks and the rise of custom programs led by retailers and luxury brands, exploring how these systems are shaping the future of loyalty and what businesses worldwide can learn from them. 📩 Read more articles about us here: https://www.supremetech.vn/blog/  ☎️Contact us to see how we can support your loyalty app strategy.