EVALUATION ATLAS / Study 01
An interactive reading of Alkin & Christie
A change of perspective

Beyond the flat tree.

What looks far apart on a page can be close in space. Wrap the theory tree, then turn it to discover where Use and Valuing meet.

The tree, in three dimensions
UseMethodsValuing
The three branches are Use, Methods, and Valuing. In a wrapped spatial interpretation, the outer edges of Use and Valuing become adjacent. All three share a common trunk.
Drag to rotate · Scroll / pinch to zoom · Click a name
3D / WRAPPED
Flat treeWrapped canopy
Reading the model

This is a selective, interpretive 3D model of the Evaluation Theory Tree, not a reproduction of a particular edition. Positions and distances are illustrative; twig connections do not assert direct intellectual lineage. The bridge connects orientations, not a specific pair of theorists. Roots follow the early tree: social inquiry, and accountability & control.

The idea has roots

Carden & Alkin (2012), Evaluation Roots: An International Perspective, p. 104, explicitly discuss the outer Use and Valuing branches relating or touching in three dimensions. Also see Christie & Alkin (2008) on revisions to the tree.