Parcels, or whatever you want to call them (see inset), when stored in a geographic database, delineate the aerial extent of property as well as store all kinds of related attributes such as tax ID number, tax status, and ownership information. These parcel boundaries can be very precise due to on‑the‑ground surveying or very imprecise if the boundaries are instead digitized from historic, hand‑drawn, plat maps. Sometimes both types of boundaries exist within the same parcel database, as in the case where in‑town parcels have been surveyed on the ground and rural areas have not. This presents a certain amount of difficulty for the designer since it is likely that both types will need to be presented on the same map. A distinction could be made between the precise boundaries and imprecise boundaries by changing the boundary line from, say, a solid for precisely located parcels, to a dashed line for nonsurveyed parcels. In other cases the designer may want to merely note the limitations of the data in a disclaimer or other such section containing caveats. (See Figure 6.44 for color suggestions.)