Yung ACS is valid for 24 months.
Yung ACS nagbabawas ng work experiences. Like those 9 years nang systems analyst binawasan nila ng 4 years. You need to have a solid experience at your nominated skills. Well maybe it depends narin. case to case basis siguro. You can try to be assessed by ACS but it will be risky to waste $$$. Kung makapasa ka sa ACS, your next issue is the DIAC naman, you have to satisfy din their requirements of having "solid work experience in nominated skills" iba kasi opinion ng ACS at DIAC. And take note, This year puno na ceiling ng Business Analyst & Systems Analyst, mapupuno na rin Software Engineer. Ganun karami nag aaply for those skills. You can wait till July pag nag open na ulit yung slots. But there is no guarantee na nasa SOL pa yung mga occupations na yun (if AUS are still in short of those occupation by that time). They call the visa <i>"Skilled Independent Visa"</i> for a reason, they need experienced and skilled people.
You can increase your points by, increasing your age to 27 (hehe) or improving your IELTS or wait for few more years to gain experience. Bata ka pa naman. Enjoy mo muna Pinas, or try SG, Dubai.
Sana di ka naguluhan. hehe.