hierarchy
Excursus: Homage to the Square^3
The problem with trees
Many systems are organized hierarchically. The CERNDOC documentation system is an example, as is the Unix file system, and the VMS/HELP system. A tree has the practical advantage of giving every node a unique name. However, it does not allow the system to model the real world. For example, in a hierarchical HELP system such as VMS/HELP, one often gets to a lead on a tree such as:
HELP COMPILER SOURCE_FORMAT PRAGMAS DEFAULTS
only to find a reference to another leaf: Please see
HELP COMPILER COMMAND OPTIONS DEFAULTS PRAGMAS
and it is necessary to leave the system and re-enter it. What was needed was a link from one node to another, because in this case the information was not naturally organized into a tree.
The brilliance of notion
This, I think, is the brilliance of Notion, and what makes it one of the best examples of “fidelity to digital information” that I’ve come across. The structure of the app reflects the structure of the web itself: digital content is purposefully formatted, like semantic HTML elements, and exists in a hierarchical structure (directories on the web, nested pages in Notion), yet can be linked and referenced to create a complex network of information. And pages in Notion reveal the structure of the information: when nesting a page within a page, the child page always displays on the parent page. There’s no way to create a child page that doesn’t display on a parent page, no way to obscure the structure of the information. The semantic structure of Notion reflects the semantic structure of the web itself.
Separation and connection in all things
Truchet's approach was more topological than geometric, and the qualitative aspects of pattern take priority over the metric ones. His principles provide a kind of metaphor for the hierarchy of separation and connection in all things.
Don’t Be an Ostrich
You just handed off a major redesign. Three months of research, twenty-seven major revisions, and hundreds cups of coffee have all culminated in this pinnacle of glory. It’s finally done!
Except it’s not.
It’s not, even after you have answered every single question the developers have about your red-line.
It’s not, even after you have addressed all the technical constraints developers encountered during the implementation.
It’s not, even after you meticulously documented all the patterns and styles into a library for reference and reuse.
It’s not, because neither you nor the developers have talked to a real user. At the bottom of your heart, you are secretly wishing:
My design looks great on paper, so let’s keep it on paper.
You are an ostrich.
Post-occupancy evaluation
Post-occupancy evaluation (POE) is a practice in the building industry where an architect would visit the building after its occupancy and interview its residents. It sounds like a great opportunity for collecting feedback and learning from mistakes, but it’s rarely practiced. Why?
Many awe-inspiring, prize-winning architectures are half building, half sculpture. Often made of specially molded concrete and steel, they are extremely expensive to alter, let alone any alteration would also attack the architect’s prestige and pride. So whatever usability issues the POE identifies will remain as issues, unless the architect wants to accept the public criticism and shame that comes with the remodeling.
In fear of criticism, an architect would turn down the opportunity for POE, and continue to design the same roof that would leak water in future projects.
In fear of criticism, a developer would use customer service representatives as a shield against user complaints, while focusing on the “technical” aspect of things.
In fear of criticism, a designer would close the contract as soon as the client accepts the design, even though none of the real users are represented by the client.