Planning/Design
Version 1
Overview page
This page should be the main access page to the other content. It severs as an introduction to the resource and a connection into each of the main top-level planning categories.
Top-level page
This page captures all the information associated with a top-level planning category and presents all the associated activities to the user.
Activity page
For each activity there is a page which provides the detail of the activity, related resources, and, potentially, other related activities.
Version 2
One problem with the initial idea that was highlighted by a couple of members of EO is that the navigation is unclear. Experimentation with adding in breadcrumbs or a left-hand navigation proved fruitless. With this in mind, this alternative approach returns to the use of tabs. This would keep the overview page, which allows users to select their first area of interest but allows easier visibility of current location and of the other items. This still has the slight problem of indicating an order.
Version 3
Version 2 has some problems with associating the main page title with the body of the resource. This approach changes it so that there isn't a perceptual dissociation between the body content and the header.