Dbm 380 Week 3 Assignment Sr-Ht-003 Change Request 3

Service Request SR-ht-003: Change Request 3Team C. Christopher Collasso, Paul Dopp, Brannon Garrett, Ryan Parker, Jenny Pennington, Julio VargasDBM/380May 27, 2013Scott CainService Request SR-ht-003: Change Request 3Description of why these relationships work:The relationships that exists within the Huffman Trucking Service Request database defines the association between the entities that help to provide the basic building blocks of the data model. The data model itself is a depiction of the real world data structures and the actual model helps us to understand the real-world environment of Huffman Trucking. “When database designers go about selecting or determining the entities, attributes, and relationships that will be used to build a data model, they might start by gaining a thorough understanding of what types of data exist in an organization, how the data are used, and in what time frames they are used” (Coronel, Morris, & Rob, 2013, “Chapter 2, Data Models”) . By understanding the types of data that exist for Huffman Trucking, we are better able to represent the data structures such as the constraints, relationships, attributes and other constructs within the