SupremeTech & Enlyt Showcase CloudTV Streaming Solution at Inter BEE 2024

(AVC Recap) Unlocking Hyper Productivity in Scrum: The Path to Delivering Exceptional Business Outcomes

Event recap series of Agile Vietnam Conference 2023 by SupremeTech! Session "Delivering 2x the work in 1/2 the time. Wait, why am I not getting this" by Ethan Soo. In the session titled "Delivering 2x the work in 1/2 the time. Wait, why am I not getting this," Ethan Soo, Scrum Fellow and Regional Partner of Scrum Inc., shed light on the two key solutions for achieving exceptional business outcomes in Agile environments. The first solution emphasized fixing the teams in an Agile way by creating tangible value. The second solution focused on fixing the organization as a whole. With his extensive knowledge and practical insights, Ethan Soo provided valuable guidance on how to fix teams in an Agile way, address organizational challenges, and create a hyper-productive Scrum team. Explore other sessions of AVC: Embracing Business Agility: A Journey from Agile IT to Holistic TransformationDriving Success with Agile Goal Setting: Insights on Implementing OKRsAgile Transformation Toolbox: Ultimate tips to successfully incorporate Agile into business Driving Tangible Value: Fixing Teams and Organizational Challenges To create hyper-productive Scrum teams, Soo emphasized the importance of first fixing the team structure. This involves establishing clear roles, responsibilities, and communication channels. With a solid foundation in place, the next step is to coach the system to align with the desired goals. Encouraging a cultural shift towards an agile mindset fosters collaboration, innovation, and continuous improvement within the team. The Key to Hyper-productive Scrum Teams: Agile Mindset and Effective Work Structure To establish hyper productive Scrum teams, Ethan Soo highlighted four essential elements. Firstly, adopting the Agile mindset was crucial for embracing the principles and values of Agile methodologies. Secondly, creating a well-defined work structure ensured efficient collaboration and productivity within the team. Thirdly, effective requirement management enabled teams to prioritize and deliver valuable features. Lastly, learning to say "no" to unnecessary tasks and streamlining the product backlog was vital for focusing on delivering business value. An agile mindset is the key It was emphasized that simply learning the Scrum rules was insufficient for success. Instead, teams needed to tailor their configuration and adapt the Scrum framework to their specific context and desired business outcomes. The speaker drew an analogy with professional badminton players, highlighting that mastering the rules alone does not make one a skilled player. This session provided valuable insights and practical guidance for teams aiming to enhance productivity and deliver exceptional results through Scrum. By focusing on the right mindset, structure, and efficient production practices, teams can unlock their potential and achieve desirable business outcomes. Streamlining Requirements Management for Agile Software Development Efficiently managing requirements is a critical aspect of agile software development. By prioritizing essential features and saying no to irrelevant tasks, your team can streamline the product backlog and ensure they are working on the most valuable items, improving efficiency and customer satisfaction. Say NO to Useless Tasks: Maximizing Efficiency in Production Running an efficient production process is vital for maximizing productivity. By eliminating unnecessary tasks and focusing on what truly adds value, your team can optimize their workflow and deliver high-quality software within shorter time frames. Tailoring Scrum Configuration for Desirable Business Outcomes Understanding that Scrum rules alone are insufficient, it is crucial to tailor your Scrum configuration to align with your business goals. You can achieve desirable business outcomes and drive success by continuously refining your approach and finding the right balance between rules and customization. To summarize, by optimizing team productivity, addressing organizational challenges, and embracing the Agile mindset, you can drive tangible values and stay ahead of the competition. Streamlining requirements management, maximizing production efficiency, and tailoring Scrum configuration further enhance your chances of achieving desirable business outcomes. Embrace the transformative power of agile methodologies and start your journey towards unlocking business success today. Experience Agile software development with SupremeTech At SupremeTech, we apply Agile methodology in custom software development to deliver faster and build better products. We upgraded Agile by customizing some unique add-on features, including a custom planning and monitoring tool, a real-time transparent report, and Agile with quality control. Let’s dive in and discuss with us to learn more!

From Raw Data to Perfect API Responses: Serialization in NestJS

Hello, My name is Dzung. I am a developer who has been in this game for approximately 6 years. I've just started exploring NestJS and am excited about this framework's capabilities. In this blog, I want to share the knowledge I’ve gathered and practiced in NestJS. Today's topic is serialization! As you know, APIs are like the messengers of your application, delivering data from the backend to the client side. Without proper control, they might spill too much information, such as passwords or internal settings. This is where serialization in NestJS steps in, turning messy, raw data into polished, purposeful API responses. With the power of serialization, you can control exactly what your users see, hide sensitive fields, format nested objects, and deliver secure, efficient, and downright beautiful responses. In this blog, we’ll explore how serialization in NestJS works, why it’s a must-have skill for any developer, and how to implement it step by step. Your APIs will go from raw and unrefined to clean and professional by the end. Let’s dive in! What Happens Without Serialization? Let’s look at what happens when you don’t use serialization in your NestJS application. Imagine you’re building a user management system, and you create an API endpoint to fetch user details. Here’s your User entity: Now, you write a simple endpoint to fetch a user: What happens when you call this endpoint? The API sends the entire user object straight to the client—every single field included: The consequences of lacking Serialization in the NestJS application Security Risks: Sensitive data, like passwords, should never be exposed in API responses.Data Overload: Users and clients don’t need internal flags or timestamps—they just add noise.Lack of Professionalism: Messy, unfiltered responses make your API look unpolished and unreliable. Next, we’ll see how to clean up this mess and craft polished API responses using NestJS serialization techniques. The Differences in Applying Serialization By implementing serialization in your NestJS application, you can take full control over what data is exposed in your API responses. Let’s revisit the previous example and clean it up. Step 1: Install class-transformer To get started with serialization, you need the class-transformer package. Install it with: Step 2: Update the User Entity with Exposed or Excluded Decorator Use class-transformer decorators to specify which fields should be exposed or excluded. Only the ID and email fields will be included in the response. Step 3: Apply the Serializer Interceptor NestJS provides a built-in ClassSerializerInterceptor to handle serialization. You can apply it at different levels: Per-Controller Globally To apply serialization to all controllers, add the interceptor to the application setup: When the Get User Endpoint is called, this is what your API will now return: Why Serialization Makes a Difference Security: Sensitive fields are automatically excluded, keeping your data safe.Clarity: Only the necessary fields are sent, reducing noise and improving usability.Professionalism: Clean and consistent responses give your API a polished look. Dynamic Serialization with Group What if you want to show different data to users, such as admins versus regular users? The class-transformer package supports groups, allowing you to expose fields based on context. Example: In the controller, specify the group for the transformation: When the Get User Endpoint is called, this is what your API will now return: By incorporating serialization into your NestJS application, you not only improve security but also enhance the user experience by providing streamlined, predictable, and professional API responses. Now that you know how serialization works in NestJS, you can apply these techniques to your projects, creating safer, cleaner, and more maintainable APIs. SupremeTech has lots of experience and produces web or app services. Let’s schedule a call now if you want to work with us. Also, now we are hiring! Please check open positions for career opportunities.

Atomic Design In Software Development

Hello everyone! I'm Linh, a front-end developer passionate about discovering effective methods for system development. When I first entered the tech industry, I faced challenges organizing UI components logically and reusable. This experience motivated me to seek strategies to optimize my workflow while ensuring that the products I developed were easy to scale and maintain. Recently, I explored the concept of Atomic Design, which has become a guiding principle for me in tackling these challenges more systematically and scientifically. This approach has significantly influenced my design thinking. Through this article, I aim to inspire you and offer a fresh perspective if you're also looking for solutions for your systems. Taking Cues From Chemistry Looking for a way to build and create a design system reminds me of developments in other fields and industries. Many areas, such as design and architecture, have developed smart modular systems to produce incredibly complex things like airplanes, ships, and skyscrapers. These thoughts take me back to my school days in chemistry labs. The idea is that all matter—whether solid, liquid, gas, simple, or complex—is made up of atoms. These atoms bond to form molecules, which combine into more complex organisms, eventually creating everything in our universe. Similarly, systems built up from smaller components are more logical and connected. We can break the entire system into basic building blocks and work from there. That’s the core idea of atomic design. What Is Atomic Design? Atomic Design is an interface design methodology that focuses on creating a system of components rather than entire pages. Introduced by Brad Frost in 2013, this approach emphasizes using small, independent elements that can be reused and combined to form a cohesive whole. This strategy facilitates quicker product development, promotes a unified interface, and simplifies maintenance. “Atomic Design is a methodology where designers prioritize creating individual components and then combine them, rather than designing entire pages.” Atomic Design can enhance the design development process, promoting consistency, adaptability, and efficiency across projects. By applying the principles of Atomic Design, developers and designers can collaborate within a cohesive design system, ultimately delivering a scalable and high-quality user experience. Atomic Design organizes components into five levels, progressing from simple to complex, as illustrated above: Atoms: These are the most basic components, such as HTML tags like buttons, inputs, labels, and icons.Molecules are combinations of two or more atoms that create more complex components. For example, a form group consists of an input and a label.Organisms are more complex UI components of multiple molecules and/or atoms. For instance, a form can comprise several form groups and buttons.Templates are layout frameworks created from organisms and molecules. They define how these components are arranged on a page but do not contain actual data or content; they represent an abstract structure.Pages: These are specific instances of templates where real content is added to create complete web pages or applications. Pages include all necessary components—atoms, molecules, organisms, and templates—along with specific content for end users to interact with. In the following sections, we will explore each level of Atomic Design in detail. Atoms Similar to atoms in nature, these elements may seem abstract, but they are the foundational building blocks of all our user interfaces. In web interfaces, atoms are the fundamental HTML elements, such as labels, inputs, and buttons. As the smallest components, they cannot be broken down any further. Atoms can also be abstract concepts, including colors, fonts, and even more intangible UI aspects, like animations. Molecules When we combine atoms, things become more interesting and tangible. Molecules are groups of atoms that bond together and serve as the minor basic units of a compound. They possess unique properties and act as core elements within our design system. For example, when atoms like labels, inputs, or buttons stand alone, they are useless. However, when combined into a form, they can work effectively together. Molecules can be simple or complex and designed for reuse or one-time use. A molecule can have multiple variants (similar to components in a Variant in Figma) intended for different contexts or interactions (such as hover, pressing, or after a delay). Organisms Molecules provide us with building blocks to combine to create organisms. Organisms are groups of molecules that come together to form a more complex and complete structure. Organisms can consist of similar or different elements. For instance, a website header might include a logo, menu, and search box. When you visit the category page of most e-commerce websites, you'll see product listings displayed in a grid format, composed of smaller components like images, titles, captions, etc. Templates Templates are combinations of organisms that create complete pages. They focus on the basic content structure rather than the final content. Templates help clearly define important properties such as image sizes and text lengths, thereby establishing an effective system for managing dynamic content and ensuring alignment with the design. “You can create good experiences without knowing the content. What you can’t do is create good experiences without knowing your content structure. What is your content made from, not what your content is?” Pages Pages are specific instances of templates. Placeholder content is replaced with representative content to depict what end users will see accurately. In simpler terms, pages are templates filled with real data for presentation purposes, offering the most realistic view of the design. Developers and designers will test how templates work with actual content, allowing designers to return and adjust to molecules, organisms, and templates as needed. Benefits Of Applying Atomic Design In User Interface (UI) Design Consistency Atomic Design utilizes a modular approach, ensuring each interface element adheres to a consistent design language. When a component, such as a button or color, is modified or updated, these changes are automatically reflected across all pages, maintaining uniformity throughout the product. This consistency is crucial for large and complex design teams, where smooth and synchronized updates are essential. Reusability Reusability is one of the most significant advantages of Atomic Design. By defining basic components in a standardized way, you can reuse them throughout different contexts and parts of the product. Due to this reusability, designers and developers can quickly integrate complex interfaces from standardized small components. For example, a button designed according to the standards can be used on various pages, from the homepage to product pages and forms, without needing to be recreated. This not only minimizes repetitive work but also ensures consistency across the entire design system. Atomic Design's reusability also promotes flexibility. It allows for easy updates or replacements of a component across the system without changing every detail on each page. Maintainability Atomic Design enables designers and developers to efficiently monitor and modify specific interface parts without impacting the entire system. The team can directly adjust the associated atoms or molecules when updates are required for a component, such as a button or color. These changes will automatically be reflected across all instances of that component. This approach reduces errors, minimizes repetitive tasks, and ensures that updates are consistently applied throughout the system. Scalability Like maintainability, Atomic Design allows designers and developers to expand the system by adding new components at the appropriate levels without disrupting the overall structure. For instance, if a new type of button or content combination is needed, the team can create new atoms or molecules and seamlessly integrate them into existing organisms and templates. This method enables a system to quickly scale from a small application to larger, more complex products with many new pages and features while maintaining structural integrity. Atomic Design's scalability ensures that products can evolve continuously and improve while minimizing the effort required for updates or adjustments to meet new demands. This helps products quickly adapt to changing user needs and market conditions. A prime example of successfully implementing Atomic Design principles in UI design is the Shopee UI Design System. Shopee is building its interface systems based on Atomic Design principles to maintain consistency across its entire product range. By applying Atomic Design to fundamental components such as buttons, colors, and font families (Atoms), as well as groups of components like product lists (Molecules) and elements like navigation bars or product carousels (Organisms), Shopee enhances development speed through the reuse of standardized components, ensuring a consistent interface across multiple platforms. Reality Use-Cases Atomic Design is a robust methodology for creating user interfaces (UI) that has been extensively utilized in various open-source projects. Below are some notable systems that SupremeTech has adopted and incorporated into its client solutions: Shopify Polaris Design System Shopify uses Polaris to create a consistent interface for all applications related to Shopify. Similar to Shopee UI, Shopify Polaris applies the levels of Atoms, Molecules, and Organisms from Atomic Design into its design system. This helps Shopify enhance development efficiency and maintain long-term product quality. MedusaJS As an open-source e-commerce platform, MedusaJS implements atomic design to organize the UI components for its Storefront and Admin Dashboard. Storefront UI: When building the Shopify Storefront interface for Medusa.js projects, Atomic Design helps organize UI components hierarchically. 1. Atoms: Button:  Add to Cart button, View Product button.Text: Product title, price.Icon: Shopping cart icon, search icon. 2. Molecules: Product Card: Includes an image, title, price, and Add to Cart button.Navbar: Contains the logo, menu links, and search bar. 3. Organisms: Product Grid: A grid of product cards.Header: Combines the logo, navigation bar, and mini cart. 4. Templates: Product detail pages or product category pages. 5. Pages: Homepage, checkout page. Admin Dashboard: Medusa.js also requires an admin UI to manage products, orders, and customers. Atomic Design helps organize the admin interface. 1. Atoms: Input: Input fields (product name, price).Button: Save, Delete, or Add product buttons.Badge: Displays order status (completed, processing). 2. Molecules: Search Bar: Search input field with a button and icon.Table Row: A row in a data table (product, order). 3. Organisms: Data Table: Displays a list of products or orders.Sidebar: Navigation menu for sections like Products and Orders. 4. Templates: Product list page with sidebar and data table. 5. Pages: Product management page, order management page. By applying Atomic Design, MedusaJS achieves: Component reusability: UI components like buttons, forms, or cards can be reused in both the storefront and admin dashboard.Easy expansion: When adding new features (e.g., wishlist or promotional modules), you can combine existing Atoms, Molecules, and Organisms.Consistency assurance: Atomic Design ensures that components are uniformly designed from the admin interface to the storefront.Facilitated collaboration: Design and development teams can collaborate on a transparent hierarchical system. Wrapping Up Atomic Design is a valuable method in design and development; fundamentally, it serves as a framework for building user interfaces. The immediate benefits include time and cost savings, improved product consistency, enhanced team collaboration, support for accessibility efforts, and strategic long-term initiatives. These reasons drive organizations to adopt design systems. Mastering the core principles of modern design systems will help you grow as a designer or developer.

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 SupremeTech 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.