A Prototype for Navigation in Signed Directed Graphs of Chemical Processes

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review



Signed Directed Graphs (SDGs) are among the very beneficial, and well-known tools for fault diagnosis in chemical process plants. Based on the size of the process plant, their corresponding SDGs can be very large in size; and therefore, significantly difficult to navigate. Besides that, the recent advancement in semantic description of process structures and intelligent Process and Instrumentation Diagrams (P&IDs), has led to the development of several computer tools for navigating in a process plant structure and examining the connectivity of different process equipment to each other. In this study a prototype for an intelligent P&ID, in which the SDG is considered to help the user understand the influence of process parameters on each other is developed. Requirements were derived and implemented as a click prototype, using Axure RP. The evaluation results indicate that despite the high understandability of the prototype, the cognitive efforts for linking the information derived from the SDG with the plant’s P&ID scheme are still too high for achieving a good overall usability.


Original languageEnglish
Title of host publication2023 IEEE 28th International Conference on Emerging Technologies and Factory Automation (ETFA)
Number of pages4
ISBN (electronic)9798350339918
ISBN (print)979-8-3503-3992-5
Publication statusPublished - 15 Sept 2023


Title2023 IEEE 28th International Conference on Emerging Technologies and Factory Automation
Abbreviated titleETFA2023
Conference number28
Duration12 - 15 September 2023
Degree of recognitionInternational event
LocationInternational Centre for Conferences – CASINO Sinaia

External IDs

ORCID /0000-0003-3954-7786/work/145223944
ORCID /0000-0001-5165-4459/work/145224286
Scopus 85175440109
Mendeley 49628fc2-05af-3f85-a69c-21f39ca62588



  • Navigation, Instruments, Semantics, Prototypes, Directed graphs, Production, Software, intelligent P&ID, prototyping, signed directed graph