ER or UML?{4}


For this weeks blog I read an academic journal by James Suleiman and Monica Garfield called, “Conceptual Data Modeling in the Introductory Database Course: Is it Time for UML?.” The article talks about what type of data modeling schools are using for their introductory database courses. The answer has proven to be E-R modeling even though the article states that UML could possibly be the better style. The authors say, that a lot of programs use Object-Oriented (OO) methodology which embraces UML, therefore UML would be a good approach to teach as most students are already accustomed to it after a few programming courses. They believe as a result that there should be further discussion and teachers should press for teaching the UML way that way everything is more uniform and students can get a more comprehensive understanding of the material.

I chose this article because over the past few weeks we have been talking about E-R modeling. I thought it was very interesting that somebody was evaluating what type of data modeling we are learning in our intro database classes. I do agree that we should learn UML modeling as well as E-R that way we are exposed to both types and we can choose as we work on different projects. After looking at both ways of modeling I think that the E-R model is easier to read however; I have been looking at E-R models for the last three weeks so I am accustomed to them and with time I’m sure UML would become much clearer.

I enjoyed reading this article because it explained a few of the differences between the different types of models and the fact that there has been discussion about changing what is taught. As said before I think it is important to learn both ways that way we can look at any data model and understand what is being shown.

Suleiman, J., & Monica, J. G. (2006). Conceptual data modeling in the introductory database course: Is it time for UML? Journal of Information Systems Education, 17(1), 93-99.