Glossary
53 terms across 11 categories. Every term carries a source tier and a citation. Terms tagged PED-GEN are editorially supplied and are removable without loss of sourced content.
Showing 53 of 53 terms
AbductionPED-SRCReasoning
Reasoning from an observed outcome to a possible explanation or means of producing it. In design, abduction-2 (Dorst) names the case where neither the working principle nor the outcome is known and both must be proposed together.
Source Dorst (2011), Design Studies 32(6).
Affirmative designPED-CANCritical
Design that reinforces the way things are, as distinct from critical design, which questions it. Dunne and Raby's contrastive term.
Source Dunne & Raby (2013).
BriefPED-GENPractice
The document constituting the design problem, its constraints, and its success conditions. Distinguished in professional practice from the proposal, which is the designer's response to it.
Source Editorial definition.
Co-designPED-CANParticipation
Collective creativity applied across the span of a design process, in which people not trained as designers act as design partners rather than as research subjects.
Source Sanders & Stappers (2008), CoDesign 4(1).
Co-evolution (problem–solution)PED-SRCProcess
The empirically observed pattern in which designers develop the problem and the solution together, each successively reframing the other, rather than fixing the problem first.
Source Dorst & Cross (2001), Design Studies 22(5), 425–437.
Community of practicePED-CANLearning theory
A group that sustains a shared repertoire of practice and into which newcomers are inducted by increasing participation.
Source Lave & Wenger (1991); Wenger (1998).
ConnoisseurshipPED-GENAssessment
Expert judgment that is reliable but not fully articulable — the capacity to recognize quality without being able to state exhaustive criteria for it.
Source Editorial definition; premise traceable to Polanyi's tacit knowing.
ConvergencePED-GENProcess
The narrowing phase of a design process, in which the option space is reduced toward a commitment.
Source Editorial definition; the term is common to most process models.
Creative confidencePED-CANCritical
The Kelleys' term for the belief that one can create change — the disposition design thinking claims to install in non-designers, and the target of the de-skilling critique.
Source Kelley, D. & Kelley, T. Creative Confidence (2013). Also named as a mindset in the IDEO Field Guide (2015).
Crit (critique)PED-GENAssessment
The studio ritual in which work in progress or completed work is presented and responded to. Variants include desk crit, group crit, pin-up, and final review.
Source Editorial definition; the variant taxonomy is a working schema.
Critical designPED-CANCritical
Design that uses the designed artifact to pose a question or advance a critique rather than to solve a problem.
Source Dunne (1999); Dunne & Raby (2013).
Design justicePED-CANCritical
A framework interrogating who designs, who benefits, and who bears the costs of design, and committing to community-led practice.
Source Costanza-Chock (2020); Design Justice Network Principles (2018).
Design Methods MovementPED-CANHistory
The 1960s effort to make design a systematic, rational, teachable procedure; its first generation was substantially repudiated by its own founders.
Source Jones (1970); Alexander (1964); Conference on Design Methods (1962).
Design thinkingPED-SRCProcess
Ambiguous term. (1) Rowe's 1987 study of designers' cognition. (2) The management/consultancy discourse popularized by IDEO. (3) Dorst's abduction-2 account. These are not the same object and should not be cited interchangeably.
Source Rowe (1987); Brown, HBR (June 2008); Dorst (2011); on the disambiguation, Johansson-Sköldberg et al. (2013).
Designerly ways of knowingPED-CANTheory
Cross's claim that design constitutes a distinct culture of inquiry with its own objects, methods, and values, irreducible to science or the humanities.
Source Cross (1982), Design Studies 3(4), 221–227.
Desk critPED-GENAssessment
One-to-one instructor feedback on work in progress at the student's workspace. The primary scaffolding mechanism of studio teaching.
Source Editorial definition; the scaffolding reading draws on Vygotsky.
DivergencePED-GENProcess
The expanding phase of a design process, in which the option space is widened before commitment.
Source Editorial definition.
Double DiamondPED-SRCProcess
The Design Council's four-stage model (Discover, Define, Develop, Deliver), running divergence–convergence twice: once on the problem, once on the solution.
Source Design Council, Eleven Lessons. Date contested: Design Council states 2004; scholarly convention says 2005. Revised 2019 as the Framework for Innovation.
Empathize / Define / Ideate / Prototype / TestPED-GENProcess
The Stanford d.school five-stage model. Commonly and incorrectly attributed to IDEO, whose own published models are the three-space and Hear/Create/Deliver structures.
Source Editorially stated. No single canonical publication fixes this sequence; the attribution error is the editor's flagged concern.
Experiential learning cyclePED-CANLearning theory
Kolb's four-stage loop: concrete experience, reflective observation, abstract conceptualization, active experimentation.
Source Kolb (1984).
Field Guide to Human-Centered DesignPED-SRCProcess
IDEO.org's 2015 process publication: three phases (Inspiration, Ideation, Implementation), seven mindsets, 57 methods. The evolution of the 2009 HCD Toolkit.
Source IDEO.org (2015), 1st ed., ISBN 978-0-9914063-1-9.
First Things FirstPED-CANEthics
Garland's 1964 manifesto (re-issued 2000) arguing that design skill is misallocated to consumer persuasion and should be redirected.
Source Garland (1964); First Things First Manifesto 2000.
Formative assessmentPED-GENAssessment
Assessment whose purpose is to feed forward into revision rather than to fix a final judgment.
Source Editorial definition; distinction originates with Scriven (1967).
Frame / framingPED-SRCReasoning
The proposal of a new way of viewing a problem situation, such that a working principle becomes available. Dorst's answer to the abduction-2 problem.
Source Dorst (2011); extended in Frame Innovation (2015).
Framework for InnovationPED-SRCProcess
The Design Council's 2019 revision of the Double Diamond, adding core principles and a leadership-and-engagement layer around the original four stages.
Source Design Council, Framework for Innovation (2019). Confirmed on designcouncil.org.uk.
HCD ToolkitPED-SRCProcess
IDEO's 2009 open-source toolkit for NGOs and social enterprises, structured as Hear / Create / Deliver. Predecessor to the Field Guide. Its phases are not the same as the Field Guide's.
Source IDEO (2009; 2nd ed. 2011). Gates Foundation grant via iDE, with ICRW and Heifer International.
Hear / Create / DeliverPED-SRCProcess
The three-phase structure of IDEO's 2009 HCD Toolkit. Superseded but not identical to Inspiration/Ideation/Implementation — a distinction routinely collapsed in teaching.
Source IDEO, Human-Centered Design Toolkit (2009).
Hidden curriculumPED-GENPedagogy
The norms, values, and hierarchies a program transmits without stating them — in the studio, typically norms about labor, taste, and belonging.
Source Editorial application; the term is general educational sociology, not design-specific.
Human-centred designPED-CANProcess
Design organized around explicit understanding of users, tasks, and environments, with user involvement throughout and iterative user-centred evaluation. Formalized as an ISO standard.
Source ISO 9241-210 (2010, rev. 2019); lineage via Norman & Draper (1986).
IBIS (Issue-Based Information System)PED-CANProcess
Rittel and Kunz's argumentation structure — issues, positions, arguments — for second-generation design method, treating design as debate rather than optimization.
Source Rittel & Kunz (1970); Rittel (1972).
Inspiration / Ideation / ImplementationPED-SRCProcess
IDEO.org's three-space model, stated in the Field Guide. The guide is explicit that the phases are not a linear sequence.
Source IDEO.org, Field Guide to Human-Centered Design (2015).
Interpretive engagementPED-SRCCritical
Iskander's proposed alternative to design thinking: a distributed, emergent, non-staged process in which the designer is dethroned and interpretation is shared.
Source Iskander, HBR, 5 September 2018.
Knowing-in-actionPED-CANLearning theory
Schön's term for the tacit competence embedded in skilled performance, revealed by the doing rather than by prior statement.
Source Schön (1983); antecedent in Polanyi (1966).
Learn / Look / Ask / TryPED-SRCProcess
The four suits of the IDEO Method Cards (2003). A non-sequential taxonomy of methods with no implied stage order.
Source IDEO, IDEO Method Cards (William Stout, 2003), ISBN 978-0-9544132-1-7.
Legitimate peripheral participationPED-CANLearning theory
Lave and Wenger's mechanism of learning: newcomers begin at the edge of a practice community and move inward through participation.
Source Lave & Wenger (1991).
LiminalityPED-CANLearning theory
The unstable in-between state a learner occupies while crossing a threshold concept, during which apparent competence may temporarily decline.
Source Meyer & Land (2003/2006), borrowing from Turner.
Method Cards (IDEO)PED-SRCProcess
A 2003 deck of 51 cards, each describing one design method with a usage story. Explicitly not a how-to guide.
Source IDEO (2003), William Stout Architectural Books.
Mindsets (IDEO)PED-SRCProcess
The seven dispositions the Field Guide names as underpinning human-centered design: Empathy, Optimism, Iteration, Creative Confidence, Making, Embracing Ambiguity, Learning from Failure.
Source IDEO.org, Field Guide (2015).
Participatory designPED-CANParticipation
The Scandinavian tradition holding that those affected by a system have a right to shape it — a political commitment rather than a research method.
Source Ehn (1988); Greenbaum & Kyng (1991); UTOPIA project (1981–86).
Productive failurePED-CANLearning theory
Kapur's finding that unsuccessful struggle with a problem prior to instruction yields better conceptual outcomes than instruction first.
Source Kapur (2008), Cognition and Instruction 26(3), 379–424.
Reflection-in-actionPED-CANLearning theory
Thinking and adjusting mid-performance — Schön's 'reflective conversation with the situation.' Distinguished from retrospective reflection-on-action.
Source Schön (1983).
SatisficingPED-CANTheory
Simon's term for accepting a good-enough solution under bounded rationality rather than searching for an optimum. The rationalist tradition's own concession to design's intractability.
Source Simon, The Sciences of the Artificial (1969).
Second-generation design methodsPED-CANHistory
Rittel's argumentative turn: design method as a structure for debate among parties who disagree about the problem, not as a procedure for optimization.
Source Rittel (1972).
Signature pedagogyPED-CANPedagogy
Shulman's term for the characteristic teaching forms by which a profession inducts novices into its ways of thinking and acting. The crit is design's.
Source Shulman (2005), Daedalus 134(3), 52–59.
Speculative designPED-CANCritical
Design that probes possible futures rather than serving present markets; the future-oriented arm of critical design.
Source Dunne & Raby, Speculative Everything (2013).
Studio culturePED-GENPedagogy
The social and normative environment of the design studio, including its transmitted assumptions about labor, hierarchy, and worth.
Source Editorial definition; the architecture literature (AIAS Studio Culture reports) is the fuller treatment.
Summative assessmentPED-GENAssessment
Assessment that fixes a final judgment on completed work rather than feeding into revision.
Source Editorial definition; Scriven (1967).
Tacit knowledgePED-CANLearning theory
Polanyi's category of what is known but cannot be fully stated — 'we can know more than we can tell.' The theoretical basis for apprenticeship and the obstacle to full proceduralization.
Source Polanyi, The Tacit Dimension (1966).
Threshold conceptPED-CANLearning theory
A concept whose acquisition is transformative, irreversible, integrative, bounded, and often troublesome — passing it changes how the learner sees the field.
Source Meyer & Land (2003; expanded 2006).
Transition designPED-CANCritical
Design oriented toward long-horizon systems-level societal transition, explicitly organized around wicked problems.
Source Irwin (2015), Design and Culture 7(2), 229–246.
VorkursPED-CANHistory
The Bauhaus preliminary course (Itten, then Moholy-Nagy and Albers) — the ancestor of the modern foundation year.
Source Bauhaus curriculum, 1919–1933; Itten, Design and Form (1963).
Wicked problemPED-SRCTheory
Rittel and Webber's class of problems with no definitive formulation, no stopping rule, no true-or-false solutions, no test of correctness, and no opportunity for trial and error.
Source Rittel & Webber (1973), Policy Sciences 4(2), 155–169.
Zone of proximal developmentPED-CANLearning theory
Vygotsky's gap between what a learner can do unaided and what they can do with guidance — the space in which scaffolding operates.
Source Vygotsky, Mind in Society (1978).