The Impact of Command Buttons, Entry Fields, and Graphics on Single Usability Metric (SUM)

GABRIEL JOHN DE LEON; JOANA PATRICE GRATUITO & RONALDO POLANCOS

10th Annual International Conference on Industrial Engineering and Operations Management

Publication Year: 2020

The Interactional Effects of Page Layout, User Workload, and Lists in Improving the Single Usability Metric

GABRIEL JOHN DE LEON; JOANA PATRICE GRATUITO & RONALDO POLANCOS

10th Annual International Conference on Industrial Engineering and Operations Management

Publication Year: 2020

Development of a Web-based Data Collection and Management System (DCMS) for the Task Collection Process of a Business Process Outsourcing (BPO) Provider

Shein Ann R. delos Reyes; GABRIEL JOHN DE LEON; Maria Liezel C. Eusebio & Josefa Angelie Revilla

3rd Australian Conference on Industrial Engineering and Operations Management

Publication Year: 2024

Introducing an Express Train Service to Mass Rail Transit Systems: A Simulation-Based Approach for Demand-Driven Station Selection

GABRIEL JOHN DE LEON & Luke Michael I. Cruz

3rd Australian Conference on Industrial Engineering and Operations Management

Publication Year: 2024

Dynamic Simulation Tool for the Analysis of the Effects of Man-Machine Ratio on the Productivity of Test Manufacturing of a Semiconductor Company

10th North American Conference on Industrial Engineering and Operations Management

Publication Year: 2025

Development of a Database Management System for a Municipal Agriculture Office in the Philippines

Gabriel John De Leon; Danielle Gem Mappatao; Diana Marie De Silva & Miguel Darwin Lapitan

4th Australian International Conference on Industrial Engineering and Operations Management

Publication Year: 2025

A Discrete-Event Simulation Approach to Analyzing Congestion in a Fitness Facility

Gabriel John De Leon; Christine Ray Givertz; John Patrick Esguerra & Alyana Jane Lapuz

4th Australian International Conference on Industrial Engineering and Operations Management

Publication Year: 2025

Assessing the Impact of Concurrent Employment and Undergraduate Studies on the Mental Workload of Student Virtual Assistants in the Philippines

Ydnar Yvann Oriño; Josefa Angelie Revilla; Gabriel John De Leon; Julius Angelo De Jasmin & John Kenneth Punongbayan

7th Asia Pacific Conference on Industrial Engineering and Operations Management

Publication Year: 2026