Vitria, a maker of business application integration software, has cut 192 jobs, reducing its staff by 20 percent, the company said Tuesday. The Sunnyvale, Calif., company, which said the cuts included positions that were vacant, laid off workers in all divisions in an effort to turn a profit. Vitria warned last week that it would miss earnings and revenue targets for the first quarter. Vitria now expects revenue of $22 million to $24 million and a pro forma net loss of 20 cents per share to 21 cents per share. Analysts polled by First Call expected the company to post a pro forma net loss of 6 cents per share on revenue of $35 million.