David E Nash

David E. Nash, founder and managing partner in ChronoEngineering and has Civil, Industrial and Mechanical Engineer degrees with a Master Degree in Organizational Behavior and is a world-wide recognized expert and specialist in Scheduling. He has helped hundreds of Fortune 500 companies over the past 47 years, spearheading Fatigue and Scheduling Solutions to help manage employee safety and health. David has worked with most of the top leading scheduling consultants in North America for 27 of the last 45 years. He is the founder of the National Association for Shift-work Health, being further developed by the US government. With over 47 years in the industry, he also designed and developed over 100 copyrighted modules, eight software-scheduling programs, with Mobile Apps for 24/7 shiftworkers and also the conceptual founder of the biomathematical model FIRM and FIRM II.

History of Contributions to the Science of Scheduling and Chronoengineering and FRMS

1975 - 80: - Copyright of 88 unique scheduling systems which apply operational research techniques to 24/7 processes

1983: - Copyright of 7 crew system to reschedule all Rapcon, Tracon and Class 4 & 5 (410) US Air Traffic Control Centers

1984: - Activity-Rest Cycles - ARC Models - Print outs for the individual to correlate critical factors into a practical and viable tool to assist in prevention of risk and avoidance of potential areas of threat to safety

1986: - Creation of Chronoengineering Department for the State of Ohio Division of Safety and Hygiene

1988: - Creation of the National Association for Shiftwork Health

1990: - Application of Organizational Modeling to Circadian Factor Applications

1992 - 1993: - First Smart Relief system for balanced circadian phase

1994 - 1996: - Developed first software for Bid-pack Master Scheduler in the US railroad

1998: - Copyright first viable 4 - 10 hours schedule for 24/7 operations w/ fixed start times and consistent days off utilizing 8 crews

1999 - 2000: - Developed first proportional Staffing Efficiency Software (ERA) with optimization master scheduler for police forces in the US

2000 - 2004: - Developed first Fatigue Index Risk Measurement (FIRM) System Software and its update of FIRM II (2019)

2004 - 2006: - Developed the first yearly Lifestyle-Planner (LENS) for individual shiftworkers

2007 - 2012: - Developed the first Predictive Risk Intelligent Safety Module (PRISM)

2013 - 2014: - Developed the first Intelligent Scheduling Optimization Program (ISOP) and the Smart Relief Task Scheduling System (TSS)

2015 - 2018: - Developed the first Mobile App for Shiftworkers - LENS (Lifestyle Education & Notifications for Shiftworkers)

2018 - 2022: - Developed the Smart Relief software system for call-ins

Dr. Dave Johannsen

Dr. Dave Johannsen is chief architect and managing partner of ChronoEngineering and serves as general liaison in all information technology matters regarding, FIRM and FIRM II, PRISM, FIRM, LENS, LENSmobile, Smart Relief, Visual Aim, ISOP and TSS. He has served as LENS's chief design and architect for 12 years and holds significant IP to many features incorporated into fatigue management systems. He is also a partner in the IP of all PASS tools. His education ran concurrent with a BS in Electrical Engineering, and a MS in Computer Science, Caltech, 1978. He received his PhD, in Computer Science, from Caltech, in 1981. His doctoral thesis was entitled "Silicon Compilation", a technique he invented using computer programs to design custom integrated circuits.

The following is the overview of the PASS Fatigue management system of which he has designed to integrate all tools in our PASS engine.

All Predictive Analytic Scheduling Solutions are a derivative, at their CORE, from the design and functionality of a biomathematical model to predict anyone's fatigue state. This 'brain' is called FIRM (Fatigue Index Risk Measurement).

Three software tools that address fatigue, which Dr. Johannsen has designed and programmed:

FIRM I & FIRM II

PRISM- Predictive Risk Intelligent Safety Module

Staffing Optimizer

Schedule Simulator (Schedulator)

ISOP - Intelligent Schedule Optimization Program

TSS - Task Scheduling Software

Visual AIM - Alertness Index Measurement

SMART RELIEF

LENS - Lifestyle Education & Notification for Shiftworkers

along with Mobile apps in iPhone and Android