1. A system including instructions recorded on a non-transitory computer readable storage medium and executable by at least one processor, the system comprising: a code generator configured to cause the at least one processor to determine an object metadata model which defines structures and behaviors of objects adapted for use in at least one software application being executed using a runtime engine, and which fails to define a domain-specific application program interface (API) for a domain associated with the at least one software application; the code generator including an object analyzer configured to determine object properties of a plurality of object instances of the object metadata model, a domain analyzer configured to determine the domain as being associated with the plurality of object instances, based on the object properties, and a template selector configured to select a domain-specific code template based on the domain, wherein the code generator is further configured to cause the at least one processor to generate the domain-specific API configured to facilitate interactions of the plurality of object instances during subsequent execution of the at least one software application using the runtime engine, using the domain-specific code template.