'universal method' is a correct and usable phrase in written English.
It is used to refer to a systematic approach or process for solving problems or accomplishing tasks. For example, "The Six Sigma quality methodology is a universal method for improving product quality and reducing costs."
Is there a universal method for voting in co-ops?
Lethal gas was briefly popular, and lethal injection, now the almost universal method of execution, was introduced in 1977.
He also devised a universal method of deductive reasoning, based on mathematics, that is applicable to all the sciences.
Even as the war dragged on, there seemed no universal method for the military to identify these quasi soldiers on the battlefield.
Though some states give prisoners a choice between lethal injection and a second method and Nebraska uses only electrocution, lethal injection is the all but universal method of execution in this country.
soon became the virtually universal method for picking out the most intelligent students in the high-school population, regardless of their family background, and getting them into the higher-education system.
Keith Griffith, the owner of the gay sex Web site, said foot-tapping in a bathroom stall "seems to be an almost universal method of letting the person next to you know that you're interested".
In this case, we have a school, or a mode, so beloved that it becomes a sort of default preserve, a universal method that, having originated with an enviable and emulous coterie, ramifies endlessly.
However, no universal method to determine SSA exists.
A universal method for classifying neuronal subtypes will increase our understanding of the human brain.
Beveridge and Nelson [13] proposed a universal method to smooth nonstationary time series.
