Search engine indexing collects, parses, and stores the data to facilitate fast and accurate information retrieval. A search index could be considered as a searchable database of words that points to the documents containing that word. The popular engines focus on the full-text indexing of online, documents. Media types, such as, video, audio, and graphics are also searchable. The portal-integrated search engine Lucene, which indexes full-text of online, documents, records, and media types, such as, video, audio, and graphics. And the portal is framework-ready to integrate other search engines, such as, Apache Solr, FAST, GSA, Coveo, and so on.
As shown in the following diagram, the portal supports the following: