Systems and methods are described for converting business logic architecture from a native language (e.g., processor compiled code) into a scripting language (e.g., scripted code) for software as a service (SaaS) delivery methods for enterprise resource planning. The systems and methods may include generating a plurality of business process patterns representing business logic associated with one or more of a plurality of business objects, obtaining a plurality of code portions that correspond to one or more of the plurality of business process patterns, the plurality of code portions being coded in a scripting language and stored in a script repository, defining at least one extension point for each business process pattern. Each extension point may represent an interface, within the business logic, in which to insert one or more of the plurality of code portions into processor-compiled architecture in a software application.