In this paper, we propose a model-driven approach for web-service development with the intention of IT-Infrastructure integration in enterprise models. This implies the extension of existing conceptual modeling languages with language constructs that aim at model information transparency on a web-service basis. Therefore, we assess at the grammatical specification of conceptual modeling languages for business domains. Acting on language meta-level means in this context the introduction of web-service related constructs into widely used visual modeling grammars. Vision is the situation dependent adaptation of software functionality to the actual documented utilization. Economical relevance results from the reduction of significant discrepancies between enterprise systems functionalities and business requirements.