Ready to build those essential system design skills? It’s a journey that can be both exciting and challenging. To get started, you’ll need a solid foundation. In this blog, we’ll guide you through all the steps you need to develop your system design knowledge. We’ll cover the basics and then dig into core system design concepts. Along the way, you’ll learn some practical tips on how to practice and implement your ideas with confidence.

Follow this plan, and you’ll be all set to handle system design challenges and start cool projects. Whether you’re just starting out or aiming to up your game, we’ve got your back.

1. Build Essential System Design Skills

The most essential skills for a system designer are as follows: 

  • Database handling
  • Telecommunications
  • Network management
  • App development
  • Understanding operating systems

With these skills, you can understand the details of information systems and figure out how to update or make them better. It’s excellent if you already have this set of skills, but it’s never too late to learn. You can start building your system design skills right now.

So, what skills should you develop before you venture into the art of system design?

  • Basic Skills: First, you should be able to deal with complexity and apply your knowledge to real-life problems to reach your goals. Second, it is essential to have a clear vision of what needs to be done and how to find solutions to meet client needs. 
  • Technical Skills: The following list features the key technical skills required for system design:
    • Assets management
    • Knowledge of how to develop applications
    • Basic grasp of the system’s network
    • Proficiency in software development
    • Good documentation skills
    • Strong analytical and decision-making abilities
    • Clear understanding of mathematical concepts
  • Important Tools: To effectively describe the structure and behavior of systems, you need diagrams. You must know how to use UML tools (Unified Modeling Language). Examples of these tools are Sketch2react, TeamCenter, Adobe XD, etc.

Grokking Modern System Design Interview for Engineers

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2. Understand Core System Design Concepts

System Design means combining various elements (like modules, components, etc.) of the system. Key concepts that you must know when you start studying system design include the following:

  • Computer Networking
  • Distributed Systems
  • Parallel Computing

Begin your groundwork by delving into the fundamentals of Scalable and Maintainable Applications. This will help you learn how to address hardware and software issues.

Next, explore Data Models and Query Languages, covering data query languages, graph-like data models, and the basics of data logs.

After that, you should start studying Storage and Retrieval. You’ll learn this through data structures, hash indexes, and data warehousing.

Finally, explore Encoding and Evolution, where you’ll learn JSON, XML, and binary variants, as well as different data flow modes.

Once you have perfected these ideas, you should begin learning distributed data. This will include concepts such as replication, partitioning, transactions, etc.

Next comes derived data. The two major elements of derived data you must know are batch processing and stream processing.

System Design Methods

There are four major approaches to system design:

  • Architectural design: Architectural design describes the views, models, and behaviors of the system.
  • Logical design: Logical design represents the flow of data—the system’s inputs and outputs—such as Entity Relationship diagrams, for example.
  • Physical design: Physical design involves managing system inputs and outputs. Data manipulation during physical design includes verification, processing, and display. User interface, process, and data design considerations are also part of this process.
  • Detailed Design: Detailed design includes project planning, control, user involvement, and sub-system definition. It creates the raw print of the system.

3. Study Existing Systems

You can gain valuable insights from existing systems, most of which are documented online. Study and take notes while designing systems like those used by Netflix, Uber, X, YouTube, Facebook, and Amazon. This will prepare you not only for system design interviews but also for building real-world systems in the industry. You can find guides on designing such systems in the Grokking Modern System Design Interview for Engineers & Managers course. 

4. Approach Problems with a System Design Framework

The heart of effective software design lies in simplifying and handling complexity with ease. It’s about comprehending a system’s inner workings and making modifications effortlessly.

To craft a clear design, a framework can provide a helpful guide, ensuring that nothing gets overlooked. Let’s take a look at the PEDALS method. It breaks down the process into six steps:

  • Process requirements
  • Estimation
  • Design the Service
  • Articulating the data model
  • Listing architectural components
  • Scaling

This method offers a straightforward approach to initiate system design. While it’s commonly used for interviews, it is equally beneficial for real-world projects. System design interviews resemble a collaborative discussion among engineers planning a solution. This process makes the conversations easier.

You might also like to explore more extensive architecture frameworks for enterprise-level applications—for example, SABSA (Sherwood Applied Business Security Architecture) and The Zachman Framework.

5. Explore Cloud Services

Cloud computing offers many advantages. Large enterprises and government organizations are increasingly migrating to the cloud. Therefore, it is crucial to have a solid grasp of these providers and their services. You should also know how they integrate into a robust cloud-based architecture.

Some major cloud providers include Microsoft Azure, Amazon Web Services (AWS), and Google Cloud Platform (GCP). Microsoft Azure boasts over 200 products and cloud services, including Machine Learning, Chatbots, and Web App Hosting.

Most cloud service providers offer free trial periods. These trials allow you to experiment with their services and build your cloud-based solutions for system design practice. Usually, you’ll need a credit card to register. If you want to practice without cost or installation, try Educative CloudLabs.

6. Put Theory into Practice

System design may seem overwhelming at first, but it becomes more manageable as you explore its different aspects and possibilities. To continually enhance your system design skills, embrace the ongoing process of learning and experimentation. Try practicing by making diagrams to visualize designs.

Once you’ve mapped out your design, create a small working prototype of the system in your chosen technology stack. This hands-on experience will provide valuable insights, and you’ll find out how a more intricate version of the system could function.

Tips to Practice

  • Get Required Use-Cases: Define all the necessary use cases your software system will handle. While a software system may accommodate numerous use cases, pinpointing the essential ones is key. Properly identifying these core use cases significantly influences your system design.
  • List System Constraints: Make a list of the primary limitations that your system will negotiate. These constraints can be both explicit and implicit. For instance, explicit constraints include factors like the volume of traffic or data that your software will handle. Implicit constraints include performance and usability. These are crucial for a positive user experience.
  • Start with Basic Design: Create a broad, abstract design outline. Outline the fundamental system layers like User Interface, Application, and Data. You also need to show the overarching communication flow between these layers.
  • Define Bottlenecks: After you’ve prepared the high-level design, focus on pinpointing potential bottlenecks. These bottlenecks include factors like traffic/load, concurrency, and availability.
  • Make your Design Scalable: Examine the bottlenecks identified in the previous step to explore ways to tackle them (for example, by adjusting or enhancing the system layer).
  • Define Technology Stack and Non-Functional Requirements: Once you’ve outlined your scalable design to some extent, clarify the technology stack for implementing your software. Ask yourself, what programming language and web server should I use for the application layer? What will the API platform (e.g., REST) be? Next, develop the specifications for non-functional aspects like performance, hardware infrastructure, security, etc.

Project Ideas to Work on for System Design

Ready to practice? Here are some ideas for you to use to assess yourself:

  • Teleconference System
  • E-Library System
  • Quality Assurance Monitoring System
  • Network Security and Firewalls in Banking Systems
  • Customer Experience Management

Getting Started with System Design

We’ve covered how you can begin your system design learning process. Now, you can understand advanced system design concepts and implement these ideas in your practice. And, because this must have raised more questions in your head if you’re curious and want to get an even better understanding of system design, explore our courses now: