.as4 — AS4 Message Format
OASIS · 2018
AS4 is a secure and reliable standard for exchanging business messages and documents between organizations.
Key Features
- Guaranteed message delivery (once and in order)
- Strong security through encryption and digital signatures
- Support for various transport protocols (e.g., HTTP/S)
- Flexible payload handling for different business documents
Best For
- Mission-critical B2B document exchange
- Compliance-driven data transfers
- Situations requiring high assurance of message delivery and integrity
- Interoperable systems needing a standardized secure messaging layer
Less Ideal For
- Simple email communication
- Public website content
- Real-time chat applications
- Large file transfers not requiring guaranteed delivery
Common Use Cases
- Securely exchanging invoices and purchase orders between trading partners
- Transmitting regulatory compliance data between businesses and authorities
- Facilitating secure data exchange in supply chain management
- Exchanging electronic health records (EHR) between healthcare providers
How to Open It
- AS4 messages are typically processed by specialized B2B integration software or middleware.
- Users will interact with the results of AS4 communication via their business applications (e.g., ERP, accounting software).
- Directly 'opening' an AS4 file like a document is uncommon; it's handled by system integrations.
- Developers and integrators use AS4 toolkits or libraries within their custom applications.
What is a .as4 file?
The AS4 (Applicability Statement 4) format is a secure and reliable protocol for exchanging business documents and messages over the internet. It builds upon the foundation of ebXML Messaging Services, offering enhanced security features like encryption and digital signatures. AS4 ensures that messages are delivered precisely once, in order, and without loss, making it ideal for critical business-to-business (B2B) communication. It's designed to be flexible and interoperable, allowing different systems and organizations to exchange data confidently.
Programs That Open .as4 Files
| Platform | Program | ||
|---|---|---|---|
| Windows | MuleSoft Anypoint Platform | Paid | |
| Boomi Integration | Paid | ||
| Software AG webMethods | Paid | ||
| macOS | MuleSoft Anypoint Platform | Paid | |
| Boomi Integration | Paid | ||
| Linux | MuleSoft Anypoint Platform | Paid | |
| Boomi Integration | Paid | ||
| Apache Camel (with AS4 components) | Free | ||
| Web Browser | Various Cloud Integration Platforms (iPaaS) | Paid |
Common Problems with .as4 Files
Frequently Asked Questions
AS4 is primarily a messaging protocol and a set of standards for exchanging messages. While messages are transmitted in a structured format (often SOAP-based), it's more about the secure and reliable exchange mechanism than a standalone file format.
AS4 is a more modern successor to AS2, offering enhanced security features, better support for various transports, and a more standardized approach built on web services (SOAP) and WS-Security, whereas AS2 is simpler and often uses proprietary protocols.
Yes, typically specialized B2B integration software, middleware, or API gateways are required to implement and manage AS4 communication effectively.
Technical Details
AS4 messages are typically encapsulated within SOAP (Simple Object Access Protocol) messages, leveraging WS-Security standards for advanced security features. It supports various transport protocols like HTTP/S and can employ different reliability mechanisms to guarantee message delivery. The format defines how message properties, payloads, and security assertions are structured for reliable and secure transmission.