They also facilitate the interpretation of data. They often describe information more clearly than several paragraphs of description. Organization charts are useful for presenting the chain of responsibility in a program. GANT charts list a set of tasks. They indicate the time each task is to be performed and by whom.
Maps visually describe certain geographical areas.
They are useful in describing different conditions for individual geographical areas. Numerical Description of Data Data are not only described in narrative, they are often described numerically. In order to do a frequency distribution one must have categories. The evaluation might look to see how many parents were members of particular racial or ethnic categories, how many were known to protective services, or how many were referred from a range of referral sources. Frequency distributions are not limited to descriptions of consumer characteristics.