This illustration shows the JD Edwards EnterpriseOne architecture that supports web services and business services. The HTML Web server, which is on an application server, interacts with the Enterprise server. The Enterprise server interacts with the business services server and the transaction server. Both t he Transaction server and the business services server are on an application server. The business services server interacts with the security server to authenticate information before updating the EnterpriseOne database. The business services server interacts directly with third-party systems or interacts with third-party systems through the Oracle ESB or BPEL.