This is the 18453rd most frequent Russian word.
эффективную
"Effective."
Here, 'эффективную' (effective) is used as an adjective describing 'стратегию' (strategy), expressing the quality of being successful in achieving intended results.
Мы должны разработать эффективную стратегию продвижения.
We need to develop an effective promotion strategy.
In this sentence, 'эффективную' modifies 'методику' (methodology), highlighting the characteristic that it enables better outcomes or efficiency.
Для улучшения качества работы мы внедрим эффективную методику.
To improve work quality, we will implement an effective methodology.
The word 'эффективную' is describing 'систему' (system), emphasizing its capability to manage resources efficiently.