Introduction to Hyperledger Fabric and Composer

Hyperledger Composer is an extensive, open development toolset and framework designed to simplify the creation of blockchain applications. Its primary goal is to accelerate time to value and make it easier to integrate blockchain applications with existing business systems. Here are the key points about Hyperledger Composer:

Purpose and Features:
- Development Toolset: Hyperledger Composer provides a comprehensive set of tools for developing blockchain applications.
- Integration with Existing Systems: It aims to seamlessly integrate blockchain applications with your current business systems.
- Rapid Development: You can use Composer to model your business network and deploy a blockchain solution in weeks rather than months.
- Business Network Modeling: Composer allows you to model your business network, define assets (tangible or intangible goods), transactions, and participants.
- Hyperledger Fabric Support: It works with the existing Hyperledger Fabric blockchain infrastructure, which supports pluggable consensus protocols for transaction validation.
- Controlled Access Points: Everyday applications can consume data from business networks, providing controlled access to end users.
Example Scenario:
- Imagine a realtor’s business network:
  - Assets: Houses and listings.
  - Participants: Buyers, homeowners, and realtors.
  - Transactions: Buying or selling houses, creating and closing listings.
- The realtor can create an application with a user-friendly interface for viewing open listings and making offers.
- This business network can also integrate with existing inventory systems, adding new houses as assets and removing sold properties.
- Relevant parties like a land registry can interact with buyers to transfer ownership of land.
Getting Started:
- To explore Hyperledger Composer, you can try the Online Playground.
- For an introduction to Composer components and concepts, check out the Key Concepts.
- To understand the architectural overview of a typical solution built with Composer, refer to the Typical Solution Architecture.