In naming of a document, briefly explain the concept of Descriptive file and Non-Descriptive file.

The Descriptive file names are useful for small, well-defined projects with existing identification schemes that link the digital object to the source material. However, inconsistent application of terms or typos will increase to indexing and sorting errors. Non-descriptive file names are usually system-generated sequential numerical string or the system based, such as a digital ID number, combination of Date and time, name of original file and are often linked to meta data stored elsewhere. Non-descriptive file names are often created for large scale digitization projects and may employ a digital ID number and numerical sequences to indicate batch or parent-child relationships. The advantage of non-descriptive names is that there is less chance of repeated or non-unique file names within a data structure.