ILM is often considered a more complex subset of data life cycle management (DLM). According to Karen Dutch, vice-president of product management at Fujitsu Softek, DLM products deal with general attributes of files, such as their type, size, and age; ILM products have more complex capabilities. For example, a DLM product would allow you to search stored data for a certain file type of a certain age, for example, while an ILM product would let you search various types of stored files for instances of a specific piece of data, such as a customer number.