The FOUR STREAMS Model is a metaphorical device to allow faculty (and students) in the Vertical Studios to track the degree of emphasis accorded to four broad aspects of architectural design in the studios they offer (and take).

The FOUR STREAMS are imagined to flow together in the designing of buildings that are suited to their purpose, time, and place. Every Vertical Studio addresses all FOUR STREAMS, but with different emphases. The intention is that students completing the Vertical Studio sequence show proficiency in each STREAM before moving on to Advanced Design Studio.

The Four Streams are:

1. Ordering Systems

Geometry, Form, Space, Structure, Composition, Proportion, Dimension, Scale, Time, etc.

2. Human Factors

Program, Use, Purpose, Health and Safety, Perception, Experience, Behaviors, Community, Diversity, Equity, Inclusivity, Meaning, etc.

3. Construction

Methods, Materials, Fabrication, Assembly, Structural Systems, Building Services, Environmental Control Systems, etc.

4. Contexts

Climate, Ecology, History, Economy, Infrastructure, Urban, Suburban, and Rural Development, etc.
 
In addition to developing expertise in the FOUR STREAMS, architectural designers require competency in the following categories. Every Vertical Studio addresses all competencies. The intention is that students completing the Vertical Studio sequence show proficiency in these competencies before moving on to Advanced Design Studio.

DESIGN PROCESS

Iteration, Demonstration, Documentation

DESIGN CONCEPT

Critical Thinking, Formulation, Communication

PRECEDENTS

Research, Analysis, Presentation, Application

REPRESENTATION

Analog, Digital, 2D, 3D, Drawing Conventions

SYNTHESIS

Life Safety, Accessibility, Codes, Regulations

During the process of describing their studios for lottery, and in their published course descriptions, faculty indicate the relative volume (degree of emphasis) each stream will have, within the following parameters:
 
(1 + 2 + 3 + 4) = 100%
10% < 1, or 2, or 3, or 4 < 50%
 
At the end of the semester, students are surveyed as to what relative volumes they experienced, and the instructors are given the results.
 
The educational purposes of the model are as follows (i) to help students pursue their own interests and talents and yet achieve balance over several semesters before moving on to Advanced Design, (ii) to allow teachers to teach to their individual strengths and interests, (iii) to offer a framework for advising individual students, during the semester and during Portfolio Review, and (iv) to help coordinate Vertical Studio curriculum and teacher selection such that, averaged over all Vertical studios offered each semester, each stream receives roughly equal emphasis.
 
It is understood that in architectural practice, as in any comprehensive architectural design project at school, the Four Streams run concurrently—mingling, as it were, into one river.