2ns and 3ns to categorise features of a website, for example the visual elements, colours or text used, layout, the content of the website, credibility, how the elements relate to the users actual purpose of using the website etc. One of the purposes of trikonic is to explore whether it can help to identify what elements of a website actually influence the user to perceive it to be credible or not. Trikonic Analysis on the Interoperability of Conceptual Graph (CG) Tools When approaching software problems like the interoperability of CG tools, it is often useful to look at a situation from a software engineering perspective to find a solution. However, with the use of trikonic it is possible to approach the software engineering problem in this way. Trikonic analysis is a very sophisticated method, and as shown in the examples above it can be used in many different ways and scenarios. Again, using the notions of 1ns, 2ns and 3ns it may be possible to see how certain elements of the CG tools relate to each other in this way and produce a good solution from this. Examples of the three categories could be the programming language, the CG language and the architecture of the software. From this you could say, that: “this CG language is a possibility” (1ns), “the programming language needs to be…” (2ns), “the architecture of the software is…” (3ns). See also Categories (Peirce) Semiosis Thesis, antithesis, synthesis References Further reading HOUSER, N. & KLOESEL, C., ed. 1998. The Essential Peirce: Selected Philosophical Writings in 2 volumes, Indiana University Press. RICHMOND, G., 2005. Outline of trikonic Diagrammatic Trichotomic. In: F. DAU, ML. MUGNIER, G. STUMME, ed. Conceptual Structures: Common Semantics for Sharing Knowledge: 13th International Conference on Conceptual Structures, ICCS 2005, Kassel, Germany, 17–22 July 2005. Springer-Verlag GmbH, pp. 453 – 466. SOWA, J.F., 2000. Knowledge Representation – Logical, Philosophical and Computational Foundations. Logic Semiotics Charles Sanders Peirce