

vFunction is a technical platform designed for the architectural transformation of complex Java (1.6+) and .NET (4.0+) applications. It uses runtime and static analysis combined with data science to visualize application structures and identify domain boundaries, which supports the process of breaking down a monolith into microservices.
The tool is aimed at companies in industries such as financial services, automotive, and manufacturing. It supports a workflow that moves from data collection and visualization to modularization and service extraction, providing prompts that guide AI code assistants during the refactoring process.
Buyers should note that this is a high-technical-level tool. It is designed to integrate into the software development lifecycle by providing architectural context to tools like GitHub Copilot and Amazon Q. It supports on-premises deployment to keep data within the customer environment.
Analyzes applications dynamically and statically to map functional domains, entry points, and dependencies.
Generates structured modernization plans and prompts that may be used by AI code assistants to modularize code.
Supports the extraction of domains into separate services and the generation of associated APIs and client libraries.
Generates sequence diagrams, service maps, and C4 diagrams to document system architecture in real time.
Monitors for architectural drift, dead code, and circular dependencies to help teams quantify risk.
Uses OpenTelemetry to manage and document distributed architectures after modernization.
Identifying domain boundaries in legacy Java or .NET apps to extract them into modular, cloud-native services.
Analyzing on-premises applications to support the transition from lift-and-shift to containers or serverless platforms.
Using AI-guided prompts to modernize aging frameworks, such as migrating from JEE to Spring Boot.
Monitoring post-modernization environments to detect architectural drift.
Pricing is based on application count (t-shirt sizing) with volume discounts available for packs of 10, 20, 30, or 50+ apps. Buyers should confirm current pricing on the vendor website.
vFunction supports Java applications (version 1.6 and above) and .NET applications (version 4.0 and above).
Pricing is based on the number of applications and services observed, using a t-shirt size model with volume discounts for larger app packs.
It is primarily installed on-premises so that data remains within the customer environment, though cloud versions may be available on a case-by-case basis.
No, it is designed to integrate with them, providing the architectural context and prompts these assistants need to refactor complex legacy systems.
Source category: Software Development
Source subcategory: Application Modernization
vFunction is an AI-augmented modernization platform that transforms Java and .NET monoliths into cloud-native microservices. It provides runtime and architectural context to AI code assistants to help teams refactor legacy code. This tool requires a high level of technical skill to operate effectively.