Have you been to Autonomy's website? Seriously... go have a look... have a look at the 'Introduction to Autonomy' page:
http://www.autonomy.com/content/Autonomy/introduction/index...."Organizations already benefiting from Autonomy technology include Avis, BAE Systems, BBC, BMW, Coca-Cola, CNN, Ericsson, Fiat, Financial Times, GlaxoSmithKline, Isabel Healthcare, KPMG, Linklaters, Lloyds TSB, NASA, Nestle, Oracle, Philips, Safeway, Schneider Electric, Shell, T-Mobile, The European Commission, The U.K. Houses of Parliament, The U.S. Department of Homeland Security and The U.S. Securities and Exchange Commission."
If Autonomy isn't enterprise software on the order of SAP (if not exactly the same business), they sure write confusing marketing copy.