Building a Family Tree you can Trust - Part I?

I began writing this article in an attempt to summarise a few ways in which you can ensure that the conclusions of your family history research are accurate and be content in the knowledge that you are building a family tree that is, as far as is possible to know, correct. However, when I put pen to paper and began drafting my ideas, I realised that one post will just not do this subject justice, there are many sub-topics and off-shoots that could be discussed. What about the FamilySearch "World Tree"?, how can Family Search be used to your best benefit?, what about royal ancestry?, how far can a family tree accurately be traced?, were just a few of the questions I am often asked and wanted to include in this article, but it would become a gargantuan and unweildly treatise, in which most of the information would probably be lost due to reading fatigue. Although I have tried to keep this article a more consise introduction to and explanation of the Genealogical Proof Standard,...