Chapter 3 Datums 93 As you have seen, each datum target point is identified with a datum target symbol. The information inside the datum target symbol identifies the datum target point, as shown in Example 3-17. Example 3-18. Locating datum target points using baseline dimensioning with basic dimensions. Chain dimensions and tolerance dimensions can also be used. Identifies the specific point on the datum Identifies the datum feature where the point is located Example 3-17. The information inside the datum target symbol identifi es the datum target point, target line, or target area. The datum target points can be located with basic dimensions or tolerance dimensions. Refer to Example 3-18 for a multiview representation using basic dimensions to locate the datum target points. The datum feature symbols appear on