Complex sentence: WPA (sometimes referred to as the "draft IEEE 802.11i" standard) became available in 2003: the Wi-Fi Alliance intended it as an intermediate measure in anticipation of the availability of the more secure and complex WPA2.
Split into simpler sentences: WPA (sometimes referred to as the "draft IEEE 802.11i" standard) became available in 2003. The Wi-Fi Alliance intended it as an intermediate measure in anticipation of the availability of the more secure and complex WPA2.