There are two aspects of an argument: its content and its construction. On this blog our focus is almost entirely on the latter; the only reason we have content is that we cannot do without it to construct an argument – an argument has to be about something. However, we have no material or emotional stake in the content; it is just a means to an end. In this post we explore in more detail the specifics of the end we have in mind. There are at least three attributes of the construction of an argument that are critical: Credibility (whether the argument is supported by evidence); Coherence (whether the argument meets the tests of logic); and Consistency (whether the argument is free of contradictions). In order to illustrate these attributes we will resort to content provided by a participant in an earlier discussion.