How is the "standard of living during the marriage" considered when determining a spousal support award?

Judges take into the account the standard of living during the marriage leaning towards maintaining or at least approaching that same standard once the marriage is dissolved. It would not be fair for one spouse to be impoverished while the other is not. Ideally both ex-spouses should live at the same standard of living after the marriage as they did during the marriage, in reality this is hardly practical. There are few couples with enough assets to be able to afford to support two households at the same standard of living.