id	keyword
el-82	information
el-82	knowledge
el-82	professionals
el-82	level
el-82	software
el-82	systems
el-82	base
el-82	computer
el-82	information professionals
el-82	analysis
el-82	domain
el-82	use
el-82	database
el-82	design
el-82	libraries
el-82	hardware