Rules are part of the EXPRESS syntax, and are a very convenient to perform data integrity checking when loading a set of instances from a Part21 Express file. In the current UML model, I understand that rules are represented using a text field that embeds the EXPRESS rule. In the UML, such rules thus appear to be disconnected from the data model whereas they're part of it. Am I right ?
Another approach would be to enrich the current UML model with an UML based rule model that can be serialized to an EXPRESS rule.
Rules are part of the EXPRESS syntax, and are a very convenient to perform data integrity checking when loading a set of instances from a Part21 Express file. In the current UML model, I understand that rules are represented using a text field that embeds the EXPRESS rule. In the UML, such rules thus appear to be disconnected from the data model whereas they're part of it. Am I right ?
Another approach would be to enrich the current UML model with an UML based rule model that can be serialized to an EXPRESS rule.