The primary aim of a taxonomist must be the construction of classes of living things about which scientifically useful inductive generalisations can be made. Many workers have enumerated various aims and tasks of a taxonomists. For the sake of convenience to readers, there are summarised below.
1. To catalogue the diversity of life on earth and to preserve large samples, both of extant and extinct organisms, drawn from the diversity in various sorts of collection.
2. To differentiate the various kinds of organisms and to point out their characteristics (both qualitatively and quantitatively) through descriptions, keys, illustrations, etc.
3. To provide names for each kind of organisms, so that all concerned can know what they are talking about and so that information can be recorded, stored and retrieved when needed.
4. To develop a set of principles in regard to the choice and relative importance of characters with the ultimate aim of arranging species in hierarchy of higher categories.
5. To estimate genetic and phylogenetic relationships among organisms.
6. To contribute towards the understanding of evolutionary process.
7. To integrate the data from all fields of biology, like behaviour, genetics, physiology etc., and to detect and then summarise significant patterns possibly with the help of modern electronic computers.
8. To document and preserve specimens to provide a useful reservoir of data.
9. To help in clarifying the place of systematics or taxonomy in general biology by revising their aims and priorities, realistically restructuring the efforts in applied taxonomy and reaffirming faith in taxonomy.