Figure 1From: Towards guidelines for building a business case and gathering evidence of software reference architectures in industry Relationships among RM, RA and SA. A reference model (RM) could be the baseline of many software Reference Architectures (RA). Likewise, RAs serve as a reference for the concrete Software Architecture (SA) of the applications of an information system. These three artifacts go from a high level of abstraction to a low level of abstraction.Back to article page