Whitehead's focus on events and the process of becoming contrasted with Alexander's emphasis on patterns and coherence.
When a building has this fire, … See The Timeless Way Of Building
> "When a building has this fire, then it becomes part of nature. Like ocean waves, or blades of grass, its parts are governed by the endless play of repetition and variety created in the presence of **the fact that all things pass**. This is the quality itself."
like Whitehead Alexander describes a becoming coherent within things that pass that is the quality that makes those things alive the process of unfolding goes step by step one pattern at a time indeed this subtle and complex freedom from inner contradictions is just the very quality which makes things alive at this final stage the patterns are no longer important the patterns have taught you to be receptive to what is real and by really means things that pass in other words events so you can see that it's kind of following on really from what Whitehead of saying there is the becoming a part of nature and also becoming receptive to what is real the same two events of physicality and mentality have led others to create a split theory of reality for example Descartes mind-body duality one theory of reality for mind and another for body white it avoids that by making each event have both to some degree because in the physical and mental poles but the main point here is Alexander is obviously trying to say that the actual entities are occasions of experience
START 904 YOUTUBE EX_zRTeowuM Pattern Language
A Pattern Language is a collection of individual pattern descriptions each pattern this description follows a standard form called the Alexandrian form after Christopher Alexander
Alexandrian Form
Each pattern has a name. A good name would function as an abbreviated description the pattern next comes the context to which the pattern may apply next after a therefore statement comes the steps to apply the pattern which resolves the context resulting in greater coherence or harmony freedom from inner contradictions then we have more details by the implementation with examples and possible two related patterns in the language I've marked the different parts of their Alexandrian form with the four different stages and events just by Whitehead
* Datum * Process * Satisfaction * Decision
what I'm saying is that patterns describe events and when considering the appropriate form of description for your next pattern language it seems to me that you can safely stray away from that Alexandrian form if you want to as long as you don't stray from Whiteheads form and make sure to address the four stages: datum, process, satisfaction and decision, which is what Alexander seems to have done.
⇒ Episodes
The Episodes pattern language is organized into sections containing a series of pattern each. The patterns themselves form a web that weaves between the sections.