Navigating Contextual Complexity with Graph Visualization
CONTENTS
1 The Human Factor ........................................................................................................... 70 |
1.1 |
Orientation and Navigation ................................................................................................ 71 |
1.2 |
Complexity Factors ............................................................................................................ 72 |
2 Navigation and Graph Structures ..................................................................................... 73 2.1 Tools for Navigation and Interaction .................................................................................. 76
3 Special Considerations for System Engineering ................................................................ 76
4 Users and Use Cases ........................................................................................................ 77 |
4.1 |
Navigating and Understanding System Meta-Models .......................................................... 78 |
4.2 |
Navigating and Interpreting Large Graphs .......................................................................... 83 |
4.3 |
Navigating in a System-of-Systems Knowledge Graph ......................................................... 86 |
5 Conclusion ...................................................................................................................... 92 6 References ...................................................................................................................... 92 Acknowledgements ............................................................................................................. 94
FIGURES
Figure 1-1 : Example illustration of Observe , Orient , Decide , Act ( OODA ) model . ..................................... 71 Figure 2-1 : Top-down Visualization of a network ....................................................................................... 74
Figure 2-2 : Bottom-up approach starting with a specific node . A context menu supports searching outward from the selected node .( a ) Loading connections expands the graph . ( b ) ........................... 75
Figure 2-3 : Middle-out navigation in a network where a clustering algorithm has been applied . A context menu supports drilling into the selected cluster . ............................................................................... 75
Figure 4-1 : Simple meta model with one node type and one edge type . .................................................. 79 Figure 4-2 : Hierarchical visualization of a sample RDF model of IFC4x3 . ................................................... 80 Figure 4-3 : Circular layout of the IFC4x3 sample ontology showing distinct modeling patterns . ............. 80 Figure 4-4 : Architecture diagram showing the underlying structure of the IFC4x3 model . [ 17 ] ............... 81 Figure 4 – 5 : Two-dimensional swim lane graph layout applied to a portion of the IFC4x3 model . ............ 82 Figure 4 – 6 : SysMLv2 Part Interconnection visualization from Tom Sawyer SysMLv2 Viewer .................... 83 Figure 4-7 : Social network example showing how agents and the activities are linked . ........................... 84 Figure 4-8 : Social network marked with specific agents of interest . ......................................................... 84 Figure 4-9 : Reachability analysis on key agents . ........................................................................................ 85 Figure 4-10 : Betweenness centrality analysis on a connected social network of agents . ......................... 85 Figure 4-11 : The network of interest with expanded network context . .................................................... 86
68 February 2025