Search, Oracle Universal Content Management, and Oracle BPEL Process Manager. In addition, WebCenter needs a database to store information: any supported and licensed database such as Oracle database, MS SQL Server or IBM Db2 will work. WebCenter product stack There are three major products in the WebCenter product stack. The base WebCenter Framework allows a user to embed portlets, ADF Taskflows and Pages, content, and customizable components in an Oracle ADF application. All Framework pieces are integrated into the Oracle JDeveloper IDE, providing access to these resources. WebCenter Services are a set of independently deployable collaboration services. It incorporates Web 2.0 components such as content, collaboration, and communication services the full list is provided below. WebCenter Services includes Oracle ADF user interface components (called Taskflows) that can be embedded directly into ADF applications. In addition, APIs can be utilized to create custom UIs and to integrate some of these services into non-ADF applications. Finally, WebCenter Spaces is a closed source application built on WebCenter Framework and Services that offers a prebuilt project collaboration solution. It can be compared with solutions like Microsoft SharePoint and Atlassian Confluence. There are limited mechanisms to extend this application. Note that there is a product called WebCenter Interaction which is not built on the core WebCenter stack it is the former Plumtree portal product. Also, all Oracle portal products at Oracle are included in the WebCenter Suite, which is an umbrella of products. Products can be included in the suite regardless of whether they are built on the ADF based WebCenter Framework. WebCenter comprises furthermore several editions, among others WebCenter Suite Plus, WebCenter Portal, WebCenter Content, WebCenter Sites, WebCenter Sites Satellite Server (a distributed caching mechanism which stores and assembles "pagelets," or elements of output), WebCenter Universal Content Management. Seven WebCenter Adapters and one WCE Management are available. WebCenter services capabilities Social Networking Services - Enables users to maximize productivity through collaboration. People Connection – Enables users to assemble their business networks like linked-in. Discussions Provides the ability to create and participate in threaded discussion. This is an embedded version of Forums provided by Jive Software. Announcements Enables users to post, personalize, and manage announcements. Instant Messaging and Presence (IMP) Provides the ability to observe the online presence status of other authenticated users (whether online, offline, busy, or idle) and to contact them. Blog Enables blogging functionality within the context of an application. Wiki Self-service,