About the Authors

Peter Harding

Affiliation School of Computing, Mathematics and Digital Technology, Manchester Metropolitan University, Manchester, United Kingdom

Steve Gwynne

Affiliation Hughes Associates, London, United Kingdom

Martyn Amos

M.Amos@mmu.ac.uk

Affiliation School of Computing, Mathematics and Digital Technology, Manchester Metropolitan University, Manchester, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PH SG MA. Performed the experiments: PH. Analyzed the data: PH MA. Contributed reagents/materials/analysis tools: PH SG. Wrote the paper: PH SG MA.