Web Tier - Application Information

Data Objects will be mostly files and databases behind web servers. They are the realization of their corresponding business objects.

A trend in Application Information Management is the usage of “NoSQL” data management systems which allow a better scalability for storing and indexing huge volumes of data. Some names here are Google's BigTable, Amazon Dymamo, Cassandra NoSQL and Apache Hadoop (see http://en.wikipedia.org/wiki/NoSQL).