The purpose of this deliverable is to describe the logical data-entities that are part of the solutions domain together the relationship between them.
The target audience of the deliverable are:
The developers, who need to understand the design, and prepare the detailed design and eventually implement the solution
Participants and decision-makers from the customer who are responsible for the functional design
This is not a database model, but a logical model of the relationship between business objects.
Each entity has an id attribute, which is a persistent unique identifier for an object. This will never change for an object. The identifier is only unique for this entity, meaning that object of different entities can have the same id value.
Data in OS2iot is non-temporal. Each entity has “createdAt” and “updatedAt” attributes which contains the date and time an object was created and last modified, respectively. If an object has been created but not modified, “createdAt” and “updatedAt” contain the same values.
Each entity also has “createdBy” and “updatedBy” attributes, which contain the username of the user that created the object and the last person to modify an object. If an object has been created but not modified, “createdAt” and “updatedAt” contain the same values.
This section contains the relevant enumerations in OS2iot.
These are the types of action which can be part of the AuditLog.