LANSA vs OpenAS2

LANSA provides developer tools and professional services for modernizing IBM i systems and building business applications. Visual LANSA is a low-code platform for web, mobile, and desktop development, using one language across IBM i, Windows, and cloud deployments. For existing systems, LANSA supports green-screen refacing, web enablement, and access to legacy functions through APIs. LANSA Integrator processes XML and EDI documents, connects to databases, transfers files, and exchanges data in real time or batches; its secure communications options include HTTPS, SFTP, TLS, and SSL. Commerce Edition describes multi-tier security, PCI DSS compliance, SSL encryption, and payment gateway integration. LANSA BI can connect to external AI model providers; its AI features may send metadata such as column names and data types, but not dataset values or records. Professional services cover scoping, implementation, maintenance, and ongoing support. LANSA offers a free plan and invites prospective Visual LANSA users to request a free trial, with no trial duration stated. Pricing is on request and varies by business needs.

OpenAS2 is a free, GPLv3-licensed Java server implementing the EDIINT AS2 standard for exchanging business messages between trading partners. It sends and receives EDI-X12, EDIFACT, XML, and binary payloads, with HTTPS transport, compression, and synchronous or asynchronous MDNs. The project describes many signing and encryption algorithms, parallel file processing per partner, AS2 1.1 conformance, and FDA Automatic Submissions Gateway support. XML configuration controls sender and receiver modules, message and MDN storage, database tracking, directory resending, and optional health checks. H2 is the default tracking database, with alternatives configurable. The repository includes Docker build and run instructions and supports Java 11 and later. A REST API is available. The separate WebUI can run behind several web servers, but its package is deprecated, unsupported, and expected to be removed. The project runs on operating systems that run Java.