The phrase "a complement rather than" is correct and usable in written English.
You can use it to indicate that something serves as a complement or addition to something else, contrasting it with an alternative.
Example: "I see this project as a complement rather than a replacement for our existing initiatives."
Alternatives: "an addition instead of" or "a supplement rather than".
The Folio prize regards itself as a complement rather than a rival to the Booker.
Eventually, chiropractic medicine became a complement, rather than an alternative, to conventional health care.
Indeed, this accords with research on the interplay of labour and technology as the aforementioned dynamics are driven entirely by RN-exclusive bargaining units for whom the new IT serves as a complement rather than as a substitute in production.
But what makes it much more powerful than the earlier Özal model is not only that it is oriented to the former Ottoman lands in the Balkans and the Middle East rather than to the post-Soviet Black Sea and Caspian republics, but more importantly that it is intended as a complement rather than an alternative to the increasingly European and global orientation of the Turkish economy.
At the same time, YouTube is pitching this as a complement, rather than a replacement, to its existing ad formats.
The numbers also show online video content can act as a complement rather than a replacement for traditional television.
Community networks such as Guifi.net, Freifunk.net, and Sarantaporo.gr are gaining more and more attention as the the "other way" to build connectivity, while local DIY networks like the one in Prinzessinnengarten appear as a valuable complement, rather than a replacement, to the normal internet for location-based interactions.
At a time when the enterprise data management world is focusing on new developments around machine learning and predictive analytics, Neo sits as an interesting complement, rather than opposition, to that.
Being sure that information and capabilities are correctly allocated in such a way that agents complement rather than conflict between each other is the real challenge for any researcher.
Hague has argued that lifting the arms embargo would complement rather than contradict a peace process, since a militarily strengthened Syrian opposition can force the Syrian president, Bashar al-Assad, to the negotiating table.
Hague has argued that lifting the arms embargo would complement, rather than contradict, a peace process since a militarily strengthened Syrian opposition can force the Syrian president, Assad, to the negotiating table.
