6 DRM Abstract Model (3YU4)
6.1. Introduction This chapter presents the DRM abstract model. The DRM abstract model depicts the major concepts from each standardization area and the relationships between them. It represents an architectural pattern that represents the minimal level of detail necessary to convey the major concepts for the standardization area, with COIs extending the architectural pattern as necessary for their implementations. (3YU5)
The DRM abstract model is shown in figure 6-1. The 3 DRM standardization areas are arranged in the same general configuration as in figure 6-1 (i.e. with the Data Sharing standardization area on top, supported by the Data Description and Data Context standardization areas). The following conventions are used: (3YU6)
- Concepts are expressed as boxes, while relationships are expressed as arrows; (3YU7)
- Only “outbound” relationships are listed (i.e. those that originate from the concept); (3YU8)
- Links between standardization areas are marked as indicated in the legend, and each is provided a circled number intended for reference in the explanation of that link in table X-X; (3YU9)
- Cardinality (e.g. 1-to-many, many-to-many) is not depicted in the abstract model. Implementations based on the DRM will introduce cardinality as needed according to their requirements. (3YUA)
Subsequent sections in this chapter will “drill down” into the details of this abstract model and describe the concepts that comprise each standardization area’s section of the DRM abstract model. (3YUB)
Figure 6-1 DRM Abstract Model (3YUC)
The table below summarizes each of the links between each standardization area’s section of the DRM abstract model. It is intended to help the reader navigate through the DRM abstract model. The following information is provided for each link: (3YUD)
- Link Number: The circled number from the DRM abstract model that represents the link; (3YUE)
- From Standardization Area: The standardization area that is the source of the link; (3YUF)
- To Standardization Area: The standardization area that is the destination of the link; (3YUG)
- Concept: The concept that is common (i.e. linked) between the two standardization areas; (3YUH)
.. Link Number . From Standardization Area . To Standardization Area . Concept
(3YYH)
The concepts that comprise each standardization area will now be described in detail. (3YUJ)