Information Lifecycle Management is concerned with all data in an organization. This includes not just structured data, such as orders in an OLTP system or a history of sales in a data warehouse, but also unstructured data, such as e-mail, documents, and images. Oracle Database supports the storing of unstructured data with BLOBs and Oracle SecureFiles, a sophisticated document management system is available in Oracle Text.
If all of the information in your organization is contained in Oracle Database, then you can take advantage of the features and functionality provided by the database to manage and move the data as it evolves during its lifetime, without having to manage multiple types of data stores.