A method and system are provided for aspect scoping in a modularity runtime. The method includes declaring a set of aspects of a bundle as public aspects in a first aspect configuration file, and filtering the aspect configuration files imported by a bundle to the files from bundles on which the importing bundle has a dependency. The method includes declaring a set of aspects of a bundle as private aspects in a second aspect configuration file. At weaving of aspects at a bundle, the weaving includes: any aspects defined as private aspects; any aspects defined as public aspects; any imported aspects; and any first configuration files from exporting bundles are declared.