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FUNCTIONAL MODEL |
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The system is built on web technologies. This allows using it remotely from any computer connected to the Internet. The core of the system is written in Java language, while user interface was written in PHP. Any database supporting ANSI SQL standard can be used as the system's database.
The system automatically scans the sources connected to the core, detects new publications and extracts them. Then the system parses the documents, according to their format and forms index tables, generating word-document relations. The software core architecture, data traveling around software modules, as well as the links between modules and their functions are shown on the picture below:
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| Image.1 Web-Observer software core architecture |
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To launch the system the following preinstalled software is required (the estimates were made on conditions that 500 information sources are connected to the system):
| N |
Item |
Value |
Comments |
| Software |
| 1 |
Operational system |
Linux 7.2 and higher |
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| 2 |
Database |
Oracle 8i (8.1.3 or 9) |
Used as basic. Possibility to transfer to another, e.g. free database. |
| 3 |
Application server 1 |
Java JDK 1.3 and higher |
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| 4 |
Application server 2 |
PHP 4.1 |
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| Connection |
| 5 |
Inbound channel widthêàíàëà |
256 kB |
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| 6 |
Outbound channel width |
128 kB |
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| 7 |
Monthly traffic |
3-4 Gb |
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Recommended server configuration:
| Name |
Type |
Q-ty |
| Mother Board |
SE7501CW2 (Clearwater 533) 2-way Intel® Xeon™ 533MHz Processor server boxed board with: triple peer PCI 1*PCI-X 133MHz, 2*PCI-X 64bit/100MHz, 2*32bit/33MHz; 8GB DDR 266 memory with two-way interleaving (4 DIMMs), Integrated Dual Intel® 10/100+ & 10/100/1000 Server Ethernet controllers and integrated PCI video |
1 |
| CPU |
Xeon 2800MHz 512KB 533 MHz BOX |
2 |
| Memory |
Transcend 512MB • 64Mx72 DIMM /32Mx8/ • CL2.5 • PC-266 |
4 |
| HDD, SCSI |
Cheetah 10K.6 36700Mb, Ultra 320 SCSI, 10000rpm, 8192Kb cache, 80pin |
4 |
| CD-ROM |
CD-ROM NEC 52x |
1 |
| FDD |
Mitsumi |
1 |
| Case |
Supermicro SC-742S-420 420W, 4x5.25", 7 x hot-swap Ultra320 SCSI drive bays, 2x9cm FAN, 1x12cm FAN, 19" 4U rackmount |
1 |
| RAID-controller |
LSI Logic MegaRAID SCSI 320-1 64Mb cache, Ultra320 SCSI, 1 Channel, PCI-64bit/66MHz, Intel GC80302, RAID 0, 1, 5, 10, 50 |
1 |
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