EIS InfoBook Multi-[name] description, undated

NYC 9/11 Public Portal Document

particular architecture requires that the standalone or LAN computers be completely self-contained. All the information required for analysis is located on an accessible hard disk and all executable programs to carry out analyses are located there as well.

For many user requirements, this is a sufficient and excellent configuration. However, in those applications that require the ability to communicate and distribute information beyond a single computer or LAN, this architecture is inadequate. Therefore, to the standalone and LAN architecture, EIS International added the ability to carry out very robust communication with a product called ECOMM. The use of the ECOMM software is the beginning of the second type of architecture, “distributed.”

Distributed Architecture

Distributed architecture as depicted in Figure 1 (below), involves the use of a I communications server to manage the exchange of data among various computers ;i distant from each other. The communications server is the EIS ECOMM product installed as a workstation on a LAN. As shown in the illustration, any computer on the LAN site can send and receive ECOMM messages which contain not only the narrative message similar to an E-mail but also the attached data records from the EIS databases for exchange among sites. In the illustration, the lightning bolt-like lines indicate a remote communications capability. This remote communications can consist of regular telephone lines, cellular telephone, packet radio, satellite, and Internet E-mail. Remote sites can be either single computers or local area networks.

The distributed architecture allows a single computer, a LAN, and any other combination of single and LAN sites to communicate with I LAN Sitv J— each other in both an E-mail format as well as to exchange data among databases. EIS software has the ability to do unattended, timed queries and extracts which allows a remote site to identify changed data that is Figure 1

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