Your data need to be organized in such a way that access to them is both quick and accurate. In achieving this a good qualitative analysis program will display an index of documents with facilities to select and retrieve individual documents. Computer readable text based documents can be displayed in full so that units of text can be selected for operations such as editing indexing ( coding or categorizing) or not making ( memos ) simply by highlighting and without affecting the primary document. One of the most powerful tools in CAQDAS is the ability to search swiftly any number of documents for specified units of data or codes. The software a ability to cluster units of text containing the words you select and to display the cluster in a window together with reference to the sources document replaces the tedious process of multiple photocopying slicing copies into paper slips and annotating each one before sticking them into data cards and filing them in piles or sticking them in appropriate places on a vast clipboard. This process can be undertaken without any damage to your primary data which are still held in the original primary documents.