Distributed databases and data replication are potential issues. Access to mainframe or ERP systems might be necessary. Initial activities involve data abstraction and creation of a data model that represents the warehouse's structure. Performance and tuning of the database is required given its size. Visual representation of the data is required with the typical access to the warehouse through a GUI or reporting mechanism.
Access can be through the Internet or intranet.
Large amounts of storage will be required which could lead to optical storage. Depending on the confidentiality of the information, security could be a concern. The information on the web pages is dynamic rather than static. This involves accessing a database to create the web pages as needed. Extranet applications will require appropriate security.