Data integrity is, of course, a vital part of any business environment.
For if the validity of a document cannot be relied upon, then the foundation of a business is unsound. That's especially true in e-commerce, where the electronic alteration of documents is a constant concern. Any reliable system of transactional security must ensure the integrity of business transactions and the associated documents at all times. It must provide mechanisms to establish the integrity of documents and to verify with reliability the integrity of a document, and report when the integrity of a document is compromised. Integrity of data and documents relates not only to intentional alteration of a transaction, but unintentional alteration as well.