Epi-Systematics' expertise is infection control. Most hospitals have infection-control departments that are responsible for tracking and control of nosocomial (hospital-caused) infections. However, most departments are under-equipped and under-staffed, and have virtually no software available that targets their environment. Epi-Systematics met this need with their QLogic line of software products.

I was one of the team members maintaining and extending the second generation (QLogic II) and working on development of the third generation (QLogic III) of Epi-Systematics' flagship program. QLogic II maintained the infection control data collected by the department in a logical manner that reflected the real world. It provided analysis of that data through open-ended querying and graphing capabilities, provided by the powerful relational database engine upon which the software was built. I was involved in all major design sessions, coding, and formal software quality control and source control and versioning. We incorporated much of the expertise of the clinical staff into the program through complex querying and data analysis that was at least partially automated by the software. Because many hospitals store a majority of important data within mainframe databases, we developed a component called QMerge that automated the task of importing data from these mainframe systems, for analysis within QLogic II.

QLogic III was to be completely redesigned for ease-of-use. I was involved in the design, but I accepted employment at Accelerator before the program was completed.