College of Letters & Sciences
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Zachary Oster
Associate Professor

Zachary Oster profile picture

Student Hours: Spring 2023

In McGraw 108, or online in my Webex Personal Room, during these times.

  • Monday, Tuesday, and Wednesday, 11:00am to 12:00 noon
  • Monday and Wednesday, 2:00pm to 3:00pm
  • If these times don't fit your schedule, email me ( to set up an appointment
In person: If my door is closed when you arrive, please knock on my door. I will let you in unless I'm with someone else.

Online: You may need to wait in the Webex "lobby" for a few minutes if I'm already meeting with someone else. I will admit you to my Personal Room when I am available.


  • Ph.D., Computer Science, Iowa State University, 2013
  • M.S., Computer Science, Iowa State University, 2009
  • B.S., Computer Science, South Dakota State University, 2007
  • B.A., Music, South Dakota State University, 2007

Courses Taught


Assembly Programming, Concepts of Programming Languages, Compilers, Discrete Structures, Intro to Computational Thinking, Operating Systems, Software Engineering, Theory of Computation, Web Server and Unix Administration


Advanced Software Engineering, Software Specification and Verification, Systems Fundamentals for Cybersecurity

Research Interests

Improving the practice of requirements engineering---elicitation, specification, analysis, and verification of software system requirements and design preferences---using both human (listening) and computational (automated preference reasoning) methods.