Object-centric Information

date 2022-10-26 

Introduction

Next to my article about Information-centricity ISO 15926-7/8 also can focus on an object, an Individual or a Class.
This is done as follows:

  1. with SPARQL search the UUID against the label of the object;
  2. search everything that refers to that UUID. That gives you all templates in which that object plays a role, the entire life-cycle information of that object.
  3. in case you want a specific information you define search criteria, for instance rdl:RDS7354248 = CAPACITY (volume flow rate) and you will get that information, historical and latest;
  4. in case you want to know what the value was on 2019-09-23T00:00:00Z then give that dateTime and SPARQL will fetch the template that has a valEffectiveDate that is the dateTime you gave or, if not available (very likely), the latest dateTime before your dateTime.
  5. finally: in case you don't enter a dateTime you get the latest information.
This is possible because the Templates, representing the information, are self-contained and have their own address.
You can find an example here, where the data of the topic Mapping of a Line List are shown in triples (with prefixes instead of URIs for readability reasons). The information for the individual line and for the requirements class are being fetched.















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