The CORA Model

Introduction

It is great to see how in a few months this website has grown into an impressive collection of articles around CORA. Especially the contributions by other practitioners in the field are very important. We have created the CORA model from our real life experiences as a generalization of the models and approaches that were a common factor in our projects. So to read the examples on this site (the SAP mapping by Theo, implementing repositories by Philippe and the ROA based iPhone App by Wilco and Maarten) is fantastic!

Looking at the contribution from Wilco en Maarten, one of their conclusions with regards to CORA is that the CORA model does not provide direct guidelines on where to implement business logic. It describes where it can exist, but does not explicitly state where it should be placed. They suggest elaborating on this for CORA 2.0. I think that is a very good point. Of course we had discussions about this when we worked on CORA 1.0, but I will elaborate a bit more about it in this blog as a stepping stone for  CORA 2.0. In this first part I describe the way we look at business logic from a CORA point of view. In a second blog I discuss the way this is used within the iPhone example of Wilco and Maarten.