The present invention relates to a system for recommending a performance level of a supplier for oil majors vendor registration for vendors providing goods or services directly or indirectly to build large onshore or offshore structures for oil majors, and an information processing method thereof. According to the present invention, performance level of a vendor can be measured and evaluated in advance, and evaluated and analyzed from different perspectives. In addition, efforts for pre-qualification of suppliers for oil majors vendor registration can be systematically reduced, and can provide early approval for vendor registration through a supplier selection process.
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