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.

Key Considerations When Planning Restaurant Mobile App Development

In a world where your next customer is more likely to be holding a smartphone than a physical menu, a restaurant mobile app has shifted from a novelty to a necessity. The digital storefront is now as crucial as your physical one. Let's explore how a restaurant mobile app development unfold. While third-party delivery giants once seemed like the only way to play the digital game, savvy restaurant owners are now taking back control, building their own branded experiences to foster loyalty and drive sustainable growth. Why Restaurant Mobile App is Necessary for your Business The way customers interact with restaurants has fundamentally changed. The convenience of browsing, ordering, and paying from a mobile device has created a new standard of expectation. A report from Statista highlighted that: Revenue in the Online Food Delivery market is projected to reach US$1.39tn in 2025. Revenue is expected to show an annual growth rate (CAGR 2025-2030) of 7.64%, resulting in a projected market volume of US$2.02tn by 2030. With a massive portion of that activity happening on mobile devices. Relying solely on third-party platforms like Uber Eats, DoorDash, or GrabFood is a risky strategy. While they offer visibility, they come at a steep price: Crushing Commission Fees: These platforms can charge commissions ranging from 15% to as high as 30% per order, eating directly into your already thin profit margins. Loss of Customer Data: When a customer orders through a third-party app, they are their customer, not yours. You lose access to valuable data about ordering habits, preferences, and contact information, making it impossible to build a direct relationship. Brand Invisibility: On a third-party marketplace, your restaurant is just one logo among a sea of competitors. You have little to no control over the user experience, branding, or how you are presented. A dedicated mobile app flips this dynamic. It becomes your own digital channel, a powerful tool for controlling your brand narrative, cultivating customer loyalty through personalized experiences, and ultimately, growing your sales on your own terms. Define Your Business Goals First Before you you start restaurant mobile app development, you must answer one critical question: What is the primary purpose of this app? A clear objective will guide every decision you make, from features to design to marketing. Don't build an app simply because it's trendy; build it to solve a specific problem for your business and your customers. Consider these common goals for a restaurant app: Streamline Online Ordering & Delivery: This is the most common goal. An app can provide a seamless, branded ordering experience, cutting out the costly middleman and giving you full control over the process from order placement to fulfillment.Boost Customer Loyalty & Retention: An app is the perfect vehicle for a digital loyalty program. You can reward repeat customers with points, exclusive offers, and tiered benefits that keep them coming back. According to the National Restaurant Association’s State of the Restaurant Industry report, 78% of customers say they are more likely to visit a restaurant where they can earn points, even if it isn’t as convenient.Manage Table Reservations or In-Store Pickup: For dine-in establishments, an app that allows customers to book a table in advance can reduce wait times and improve staff efficiency. Similarly, offering a "click-and-collect" option for in-store pickup is a huge convenience for busy customers.Create a Direct Marketing Channel: Push notifications are a game-changer. Imagine being able to send a notification about a "Happy Hour" special on a slow Tuesday afternoon or promote a new menu item directly to your most loyal customers' phones. This direct line of communication is incredibly powerful and cost-effective. Tip: Be clear on what problems the app should solve, don't just build for the sake of trend. A focused app that does one thing exceptionally well is far better than a bloated app that does many things poorly. What Do Your Customers Expect from a Restaurant Mobile App development? Modern diners have high expectations for app usability and convenience. Speed and simplicity are critical in a recent survey 94% of consumers said ‘speed’ of ordering was a top priority. Customers want apps that load quickly, present menus clearly, and let them complete actions with minimal taps.  For example, one-click reordering (where a past order can be placed again instantly) or QR-code “scan to order” menus greatly streamline the process. In short, the user interface (UI) must be fast, intuitive, and mobile-optimized. Other conveniences in restaurant mobile app development keep people coming back. As noted above, loyalty points and exclusive in-app deals are very compelling with 78% of diners favoring restaurants where they can earn rewards. Likewise, personalized recommendations or easy search (by cuisine or dietary preference) can enhance the experience. The app should also feel complete: customers expect to view their order history, saved payment methods, and loyalty status. Integrations like order tracking, real-time table wait estimates, or mobile tipping can further raise satisfaction. Must haves vs. Nice to haves of restaurant mobile app development: At launch, prioritize a smooth core experience: fast menu browsing, simple one-page checkout, and secure payments. Fancy features (AR menu previews, video chat support, etc.) should come later. Listen to early users, if many requests mention split-bill or voice ordering, those can be added in updates. Which Restaurant Mobile App Development Approach Is Right for You? There are three main paths to getting an app: Custom-built app: You hire developers (in-house or outsourced) to build a unique app from scratch. This offers maximum flexibility, true brand uniqueness, and full data ownership. However, it requires more time and up-front budget. You’ll need to manage the development process closely and plan for long-term maintenance.SaaS solution: A pre-built app platform that you brand as your own. Vendors often allow quick launch and lower initial cost, since the core app is already built. You get a customizable look and the basics (menu, ordering, payments) for less. The trade-off is less flexibility, you may be limited to features the vendor supports, and often pay ongoing subscription/licensing fees. Also, you don’t truly own the code or data handling.Third-party marketplace/aggregator: Multi-restaurant ordering platforms (UberEats, DoorDash, Grabfood). This is the quickest way to go live online, but you’ll pay high commissions and lose brand control. Not only that, you are up against many other competitors on the same app. This approach is best only as a supplement, not a replacement for your own branded app. In choosing, you should weigh between costs vs. control. If you go with a white-label app, you're essentially using a pre-built app template provided by a vendor, which you can customize with your own logo, colors, and branding. This option is usually faster and cheaper to launch than building a custom app from scratch. You don’t have to reinvent the wheel because most features like menu browsing, ordering, and payments are already included. But ensure your brand and data remains your own.  A fully custom app costs more but can scale exactly as you need (especially if you plan to add unique features later). Think long-term: owning your app typically costs more upfront but can pay off in loyalty and margins. What to Look For in an Outsourcing Partner If you decide to hire an external development team, choose wisely. Key factors include: Food-industry experience: Look for developers who have worked with restaurants or hospitality clients. They’ll better understand your workflows (menus, kitchens, POS integration) and common restaurant pain points.Strong UI/UX design: The app’s interface should be professional, inviting, and easy to use. Ask for examples of their previous work, ideally in similar industries to ensure they can design a clean, intuitive app.Transparent pricing and timeline: Reputable vendors provide a clear project plan and fixed bid or well-defined hourly estimates. Get milestones and a delivery schedule in writing. Beware of “hidden costs” ensure support/maintenance fees are spelled out.Ongoing support and maintenance: An app is never truly finished. You want a partner who will be available to fix bugs, apply updates (e.g. new OS versions), and help add features over time. Check if they offer post-launch support or a retainer arrangement.Case studies and references: Ask to see case studies or speak with past clients. Successful restaurant app launches or positive reviews from other brands will give confidence. Look for partners who have highlighted measurable results. Choosing a highly-experienced partner like SupremeTech is as important as the idea itself. A knowledgeable team will guide you on architecture (native vs. hybrid app, PWA option), compliance, and industry best practices, helping avoid costly mistakes. Navigating the Challenges of Restaurant App Development Developing a restaurant mobile app for an enterprise chain comes with several common challenges. Awareness early on ensures you can manage risks and build a robust, user‑friendly product. 1. Integration with Existing Systems A major technical hurdle is integrating your app seamlessly with in‑place systems like Point of Sale (POS), inventory tracking, and CRM. Inconsistencies between systems can lead to incorrect menu data, stock errors, delayed order updates, and staff frustration. Solution: Prioritize APIs that connect smoothly with your existing systems and consider cloud-based architecture that ensures real-time synchronization  2. Handling Peak Traffic & Scalability Apps often experience surges during peak meal times or promotional events. Without proper infrastructure, performance will degrade, leading to slow response times or outages.Solution: Use scalable cloud-based servers, load-balancing, and rigorous stress testing under simulated high-traffic conditions. Monitor app performance continuously to prevent downtime during critical periods 3. User Adoption & Promotion Even a well-built app won't succeed without user adoption. Customers may be hesitant to download yet another app or worry about privacy and data entry.Solution: Ensuring Security & Compliance by choosing a trustworthy IT outsourcing company. In addition, developers already know how to adopt best practices early and continuously. Run effective app-store optimization, use in-store signage and QR codes, offer discount, and promote via email, SMS to existing customers. Make the value clear to encourage downloads and use. Summary Table of Key Challenges & Solutions: ChallengeWhy It MattersRecommended SolutionPOS/Inventory IntegrationPrevents order and stock mismatchesStrong APIs, cloud sync, vendor flexibilityPoor UX / Complex InterfaceLeads to low engagement and high abandonmentPrioritize simplicity, early user testingHigh Traffic & Scalability IssuesCauses slow performance or downtime at peak usage- Cloud-based servers- Performance testing- Continuous monitoringData & Payment Security RisksLiability for breaches and brand damage- Secure protocols- Encryption- Compliance standardsToo Much Customization ComplexityOverwhelms users and complicates kitchen workflows- Limit options- Guide user choices- Use recommendation logicDevice & Platform TestingInconsistent performance across OS versions and devicesTest on emulators and real devices frequentlyLow User AdoptionApp fails to reach critical mass of users- Incentives- Clear value messaging- In-store promotionPartner Expertise & ReliabilityDevelopment delays, misalignment, or hidden costs- Review case studies- Ask technical questions- Confirm ongoing supportMarket Saturation / DifferentiationHard to attract customers in a sea of existing apps- Add branded loyalty- Personalization- Integrated featuresOngoing Maintenance NeedsApps become outdated quickly without consistent updatesPlan support contracts and phased feature rollouts Lessons Learned from Unsuccessful Restaurant Apps 1. Ando: David Chang’s Delivery‑Only Restaurant App Ando was created in 2016 by famous chef David Chang (founder of Momofuku) as a delivery‑only restaurant brand in New York City, accepting orders via its own mobile app and website, with delivery handled by UberRUSH. It gained significant attention and raised about $7 million in funding. Despite the buzz, by early 2018 Ando was acquired by Uber Eats and shut down as a standalone brand. Why Ando Failed: Limited scale and delivery-only model: Operating only in limited zones without physical dining locations made it hard to build broad customer loyalty.Low user adoption beyond early adopters: Despite backing from a high‑profile chef and investors, the app did not achieve mainstream traction.No long-term differentiation or experience: Without sit-down experience or a broader brand ecosystem, its novelty faded quickly.Acquisition rather than growth: Uber Eats acquired and absorbed Ando, effectively ending its app as a separate entity suggesting it underperformed as a standalone digital brand. Lesson: A novel concept and strong branding don’t guarantee long-term success. Without sufficient distribution, differentiation, and repeated customer experience, app-only formats can struggle to scale. 2. GarfieldEats: A “Entertainment + Ordering” Themed App GarfieldEats launched in 2018 as a Garfield-themed ghost kitchen and delivery app across cities like Toronto, Dubai, and London. Through its own branded app, customers could order Garfield‑branded food and even play games or watch Garfield cartoon episodes while ordering. Despite the creativity, the brand shut down by late 2020, ceasing both the restaurant and app operation. Why GarfieldEats Failed: Overly complex concept: Combining dining with gaming and branding added novelty but diluted focus on core food quality and ordering reliability.Poor economics and unprofitability: High overhead licensing costs, themed decor, app maintenance without sufficient volume undermined margins.Pandemic pressures and rent disputes: COVID‑19 shutdowns and financial issues like unpaid rent forced closures across locations.Low repeat usage or engagement: The app experience was more gimmick than utility; customers did not return regularly. Lesson: Entertainment value and branding alone can’t sustain an app-driven dining concept. If food, app reliability, or repeat value are weak, novelty quickly wears off. Build Smart, Grow Long-Term Industry reports and expert analyses were used throughout for example, recent restaurant surveys show 75% of orders are now off-premises, top chains drive 60% of sales from repeat app users, and third-party delivery platforms charge roughly 15–30% fees. These trends underline why owning your app and engaging customers directly is now essential.  A great restaurant app is an investment, not a cost so you must start by choosing the IT partner wisely. When planned and executed well, it pays dividends in customer loyalty, data, and higher-margin sales. Remember that choosing the right development partner is as important as the app’s idea. Start with a clear vision and minimum viable features, then launch based on real customer use. Over time, the app will become a cornerstone of your brand’s experience. 📩 Read more articles about us here: https://www.supremetech.vn/blog/  ☎️Contact us to see how we can support your loyalty app strategy.