id	keyword
american_scientific_journal-4540	traceability
american_scientific_journal-4540	product
american_scientific_journal-4540	articles
american_scientific_journal-4540	software
american_scientific_journal-4540	engineering
american_scientific_journal-4540	review
american_scientific_journal-4540	research
american_scientific_journal-4540	software product
american_scientific_journal-4540	lines
american_scientific_journal-4540	solutions
american_scientific_journal-4540	variability
american_scientific_journal-4540	number
american_scientific_journal-4540	phase