The ISO 16100 series has been developed for Manufacturing software interoperability through capability profiling. Theses international standards are also applicable and usable for developing general software applications including enterprise applications. In this paper, ISO 16100 methodology and its usage in the trial implemented environment are introduced and discussed as software interoperability tools. The capability profile is created by filling an adequate template. The templates are prepared corresponding to activity classes which construct the application. In the development stage of new application software, the adequate software units for reuse can be found to match the requirement described in the required capability profile. The matching algorithm for capability profiles using an application domain dictionary is also provided when the profiles come from different activity class trees.