Modulra

Modulra is a fictional modular software framework used in discussions of modular design. It is intended to illustrate how applications can be constructed from discrete, interoperable modules that can be added, replaced, or removed without rebuilding the entire system.

At its core, Modulra uses a module loader and manifest file that expresses each module's capabilities, dependencies, and version. A graph tracks compatibility, while modules can run in isolated processes or sandboxes to minimize interference. Interfaces are defined by language-agnostic contracts.

Modules declare provided services and required interfaces; a common IPC or messaging protocol enables communication. Packaging and publishing tools, semantic versioning, and testing harnesses support predictable upgrades and rollback.

In hypothetical deployments, Modulra is used for desktop applications, data processing pipelines, and modular server runtimes, with emphasis on composability, observability, and security through isolation.

Critics note that while Modulra can improve maintainability and testability, it may increase complexity, startup overhead, and risk of fragmentation if module boundaries are poorly defined.

Related concepts include modular programming, plugin architectures, and component-based software engineering.