You can collect the data models by re-engineering and integrating sourcedata models.
您可以通过重新构建和集成源数据模型来收集数据模型。
2
You might need to construct the sourcedata models by using reverse engineering techniques, developing Entity and Relation (er) models from existing source databases.
您可能需要通过使用逆向工程(reverse engineering)技术构造源数据模型，从而从现有的源数据库中开发实体和关系(Entity and Relation, er)模型。
3
The title and bill of material in engineering drawings are important datasource for product data integrated management.