Lewis Schwartz, 80, a former Defense Department logistics senior analyst and projects officer who also was an assistant professor of computer science, died of cancer Sept. 18 at Inova Fairfax Hospital.

Mr. Schwartz had worked for the Defense Logistics Agency for 20 years until 1966, when he transferred to the Department of Housing and Urban Development to design computer software programs.

After 18 years at HUD, he entered the private sector, taking a job with CACI Inc. as a senior analyst of defense issues. By 1990, he left CACI and was an assistant professor of computer systems analysis, teaching evening courses at Catholic and George Mason universities for about six years until 1996.

A Springfield resident, Mr. Schwartz was born and raised in Brooklyn, N.Y. He attended the City College of New York, then entered the Army during World War II. He was a radio operator when his unit landed at Omaha Beach on D-Day. He won the Bronze Star.

He came to Washington after the war and completed his studies at George Washington University, where he received a degree in economics. He also received a master's degree in business administration from American University and served in the Army Reserve, attaining the rank of lieutenant colonel before retiring in 1979.

He was active in B'nai B'rith, serving as president of B'nai B'rith Virginia, district commissioner for youth services and district commissioner of B'nai B'rith Anti-Defamation League. He also volunteered as a counselor with the U.S. Small Business Administration.

Survivors include his wife, Molly Schwartz of Springfield; a daughter, Linda Emma of New City, N.Y.; and a grandson.