How to use this document

You will not usually need to read this document from beginning to end in order to use the CAT subroutine library. The document is divided into three parts:

Part I

- Preliminaries,

Part II

- Tutorial,

Part III

- Reference.

Part I contains some preliminary details, such as an introduction to the terminology of CAT and details of how to access the library. Part II is a tutorial example of how to write a simple application which accesses the library and Part III contains reference material which describes the library.

If the CAT library is new to you, you should start by reading Part I and working through the tutorial in Part II. Finally, read Section  of Part III, but skipping the detailed descriptions of individual attributes.

If you are already familiar with the library you should consult the reference material in Part III, and probably also the details in Section  of Part I, as necessary.