Tag Archives: data model

Metamodels and how they relate – part 1: Qualitative Data Analyses

During my data modeling process of historical occupations, I must go through various meta model transformations. Starting with Qualitative Data Analysis (QDA) in XML to structure the important segments of historical texts, I’m going on with that information to create normalised and enriched data in tabular form, which in turn is imported to a graph database to build an ontology. Surfing between the meta models may cause headaches, because there is a lot of terms to mix up and it is sometimes hard to decide which data from one point of model belongs to which point of another model. Attributes exist in XML, but also in relational databases; do they describe the same information? Do they contain the same data? What is the relationship between an individual in RDF/OWL and a tuple in a relational database? In this blog series I will walk through the meta models of Qualitative Data Analysis (QDA), XML, relational databases, simple graphs, the labeled property graph database neo4j and the ontology language RDF/OWL to focus on the terminology of each meta model and intersections and differences between the individual terms. Continue reading Metamodels and how they relate – part 1: Qualitative Data Analyses