When i started diving into product development there a term i still not familiar with, like PRD, BRD, or ERD, and even SRD. At first it sound intimidating, but thy’re essential documantion that can make process and ensure everyone on the same page.

Product Requirement Documention

PRD: Product Requirement Documention | Icon by Icon8

This documentation more like go to guide that outline what we are build, who it’s for, and why. More like a blueprint for the product. Product Requirement Document capture all the essential detail needed to creating the product.

PRD or Product Reqruiemtn documentation used by Product teams, such as developers, designer, and even stakehoders. It’s help them to understand the final product should achieve.

Important Part

Clarity: helps to understand the product’s purpose and features to everyone. Product Requirement Document (PRD) detailing every aspect of the product, it reduces ambiguity and confusion.

Alignment: Ensures that the team is aligned with the vision and goals. When everyone has a clear understanding to move toward the same objectives.

Efficiency: Saves time by minimizing miscommunication and misunderstandings. A well-drafted Product Requirement Document (PRD) prevents the back-and-forth that can occur when team members are unclear about the product requirements.

also read: Product Management 101: First Step into Product Management Field

What in PRD

  1. Overview: Briefly describe the product and its goals. This section sets the stage for the rest of the document by providing a high-level summary.
  2. User Stories: Detail scenarios from the user’s perspective. User stories help to understand how different types of users will interact with the product.
  3. Features: List and describe the core features. This is where you get into the specifics of what the product will do.
  4. Technical Requirements: Any tech specifics needed for development. This can include hardware, software, or third-party integrations.
  5. Timeline: A rough schedule for milestones and deadlines. This helps in planning and managing the development process.
Example

Imagine you’re building a new to-do list app. Your Product Requirement Document (PRD) would include features like task creation, reminders, and sharing tasks with others. It would outline who the target users are, what problems the app solves for them, and how it achieves these goals through specific features.

Business Requirement Documentation

BRD: Business Requirement D ocumentation | Icon by Icon8

A Business Requirement Documentation (BRD) focuses on the “what” and “why” from a business perspective. It’s all about the business needs and how the project aligns with them. The Business Requirement Document (BRD) captures the business’s objectives, goals, and the requirements that must be met for the project to be successful.

Purposes of BRD

  • Stakeholder Alignment: Ensures that business stakeholders are on the same page. By clearly defining the business requirements, it helps to avoid conflicts and ensures everyone is working towards the same goals.
  • Scope Definition: Clearly defines the scope to prevent scope creep. When the scope is well-defined, it’s easier to manage changes and keep the project on track.
  • Risk Management: Identifies potential risks and mitigation strategies. By understanding the business requirements, you can anticipate potential issues and plan accordingly.

also read : How to Measure your product success : Choose your own KPI

Inside BRD

  1. Introduction: Purpose and scope of the document. This section provides context and explains why the document is necessary.
  2. Business ObjectivesWhat the business aims to achieve. These are the high-level goals that the project supports.
  3. Stakeholder Analysis: Who’s involved and their interests. This helps to identify key players and understand their needs and expectations.
  4. Requirements: Detailed business requirements and criteria. This section outlines what needs to be done to meet the business objectives.
  5. Assumptions and Constraints: Any assumptions made and constraints to be aware of. This can include budget limitations, deadlines, and any other factors that might impact the project.
Example

For the to-do list app, the Business Requirement Document (BRD) might outline how the app will help improve productivity for small businesses and what metrics will define its success. It might include business requirements like user growth targets, expected revenue, and key performance indicators (KPIs) that will be used to measure success.

System Requirement Documentation

SRD: System Requirement Documentation | Image by <a target=

A System Requirement documentation (SRD) details the functional and non-functional requirements of the system to be developed. It’s a comprehensive document that describes how the system should function from both a user and a technical perspective.

Important Part

  • Detailed Specifications: Provides a detailed description of the system’s functionality and performance. This ensures that the system will meet user needs and operate efficiently.
  • Development Guide: Acts as a reference for developers and testers. By having clear and detailed requirements, it guides the development process and helps in creating test cases.
  • Project Management: Assists in managing project scope and timelines. With all requirements clearly laid out, it’s easier to plan and track progress.

also read: Design System 101: What is Design System

Why it Needed?

  1. Functional Requirements: Specific behaviors or functions of the system. This can include inputs, outputs, and processing requirements.
  2. Non-Functional Requirements: Performance, security, usability, and other quality attributes. These are the criteria that judge the operation of the system.
  3. System Architecture: High-level design and architecture of the system. This section describes the overall structure and design principles.
  4. Interface Requirements: Describes how the system will interact with other systems. This can include APIs, user interfaces, and hardware interfaces.
  5. Validation and Verification: Criteria for testing and validating the system. This ensures that the system meets all requirements and functions correctly.
Example:

For the to-do list app, the SRD would include functional requirements like the ability to create, edit, and delete tasks, and non-functional requirements like performance benchmarks (e.g., the app should load within two seconds). It would also detail the system architecture, such as using a cloud database, and interface requirements like integration with calendar apps.

Wrapping Up

Understanding PRD, BRD, ERD, and SRD is crucial for anyone involved in product development or project management. They provide structure and clarity, helping teams work more efficiently and effectively. Here’s a quick recap:

PRDi : s your product blueprint. It outlines what the product is, who it’s for, and why it’s being built. It ensures everyone is aligned on the product’s features and requirements.

BRD : aligns business goals with the project. It focuses on the business needs and how the project will achieve them. It’s essential for stakeholder alignment and managing project scope.

ERD : maps out your data structure. It’s a visual tool for understanding how data entities relate to each other. It’s critical for designing efficient databases and communicating data relationships.

SRD : details system functionality and performance. It ensures that the system will meet user needs and provides a guide for developers and testers.

With these documents in hand, you’re well on your way to creating something amazing. They not only help in planning and execution but also in ensuring that the final product meets both user and business needs. By mastering PRD, BRD, ERD, and SRD, you can navigate the complexities of product development with confidence. Happy building!