Before you begin building your site, you should think over the architectural plan. As we said, any site is made up of interrelated documents, which have unique Internet addresses. You'll need to define the kinds of documents your site will contain and how these documents will relate with each other.
Site documents differ in content, structure, and presentation (graphical design). A SAPID CMS template assigns it a document structure and presentation. In other words, a template of a document defines group of documents, which are analogous in structure and in presentation, but different in content. You should choose all such groups and create appropriate templates.
You need to consider the interrelation of the documents carefully. The interrelation you set will then be illustrated in various navigation forms of the site. It will simplify the users' access to claimed data. You can use the popular hierarchial tree model for designing document relations. That will thoroughly show the structure of a typical site.