<p>This report describes the current state of my research in software development environments. I argue in favour of strong support for <em>project management, comprehension and navigation,</em> and <em>collaboration</em> primarily based on experiences from developing large-scale industrial-strength applications.</p><p>An underlying model of such an environment, named ``Ragnarok´´, is outlined. A design and first prototype of important parts of Ragnarok is described as well as some results from initial experiments.</p>