Independent implementation intelligence

The gap between a great design and a delivered result is where the real work happens.

Most projects do not fail because of bad design or bad construction. They fail in the spaces between disciplines — where intent meets fabrication reality, where international standards meet local conditions, where what was drawn meets what can actually be built.

Get in touch
Experience30+ years across product design, exhibition design, manufacturing systems, and technical project management
PracticeIndependent — no products to sell, no contracts to protect
FocusImplementation intelligence, brought in early enough to be useful

What I do

What I offer is independent design and implementation intelligence, brought in early enough to matter.

Thirty years of practice — across product design, exhibition design, interactive technology, and manufacturing — has made clear where complex projects actually break. Not in the design, and not in the construction, but in the spaces between disciplines: where intent meets production reality, where one team’s assumptions do not survive contact with another’s, where what was specified cannot be built with what is available.

I work in those spaces. As an independent voice with no contract to protect and no product to sell, I can say what I see.

Concept & Feasibility Review

Looking at a design concept against the real constraints before commitments are made — manufacturability, site conditions, applicable standards, logistics, material behaviour. Most implementation problems are cheapest to resolve at this stage.

Cross-Disciplinary Risk Assessment

Identifying the risks that live between disciplines rather than within them — where one team's assumptions do not match another's, where a technology specification has not been tested against the physical environment, where a standard in one country conflicts with a material available in another.

Implementation Oversight

Staying involved through delivery as an independent reference point — not managing the project, but providing the cross-disciplinary judgment that keeps design intent intact through the decisions that tend to erode it.

Who this is for

Project teams where the design is ambitious, the constraints are real, and the gaps between disciplines are nobody's specific responsibility — across built work, installed experiences, and production systems.

How this helps a project

Early involvement tends to be the most valuable.

Implementation problems are almost always easier — and less costly — to address before a design is committed. An independent perspective at concept or feasibility stage can surface constraints that aren't visible from inside a single discipline.

Breadth across disciplines.

The risks that sit between disciplines — between design intent and production reality, between what a technology specification assumes and what a physical environment allows, between what one team optimises for and what another needs — often do not have a clear owner. Thirty years across product design, exhibition design, interactive technology, and manufacturing means I can hold those intersections.

Independent perspective.

I am not selling a product, a construction contract, or a design service. That makes it easier to give an honest assessment of where a project is and what it needs.

Design intent through to delivery.

It's common for what made a design worthwhile to get simplified away during implementation — not through bad faith, but through the accumulated pressure of decisions made without the full picture. I pay attention to that.

Where the judgment comes from

These projects aren't a service offering — they're where the judgment comes from. Most were carried out within formula D_, a Cape Town-based experience design studio.

Steel figure silhouette and shadow at The Old Fort, Johannesburg
Cell corridor with name panels, The Old Fort
Group scene with steel figures and coloured light

The Old Fort

Johannesburg

The brief was to bring the Old Fort’s history to life — from colonial military base to apartheid-era prison — without touching the historic fabric of the building. The design approach was deliberately analogue: the aim was a low entry barrier, an experience that surprised visitors without demanding anything of them. Profile-cut steel figures represent real characters from the site’s history, lit to cast shadows that become part of the narrative. Steel structures carry text, images, and information through the spaces. Integrated lighting and carefully placed technology support the experience without leading it. All 67 exhibits were free-standing and reversible, leaving no mark on the structure.

Key learnings: designing within severe constraint as a creative condition rather than a limitation — and the discipline of using technology in service of an analogue experience, rather than as the experience itself.

Replica cannon installed on the ramparts of The Old Fort, Johannesburg
Cannon being lifted by crane onto the ramparts

A separate commission produced two full-scale replica cannons for the ramparts, including a working gas-fired Howitzer built to original historical specifications. Based on archival research, the replicas were constructed by a specialist in historical re-enactment and installed by crane. The Howitzer fires weekly, echoing its colonial-era use.

Holographic projection of Joe Slovo in his original cell, The Old Fort

A holographic installation in Joe Slovo’s original cell brings one of the Fort’s most significant occupants back into the space. Using the Pepper’s Ghost technique, a life-sized projection of Slovo recounts a letter written from his cell during six months of detention without trial. The figure occupies the room as if present, narrated through an earpiece, with printed context visible through the viewing panel.

Visitor exploring archive exhibit, Old Granary
Archive table with drawings and photographs
Visitor with headset at talking objects display

Interactive Visitor Centre

Old Granary, Cape Town

The Old Granary’s history — customs house, prison, government office — demanded an exhibition that respected the building’s ambiguity rather than simplifying it. The design used found and replica artefacts as the primary medium: objects that visitors could handle, each narrated through handheld headsets. A morphing map projection traced Cape Town’s changing shoreline across centuries. An animated courtroom scene reconstructed an encounter between a freed slave and a colonial official. Every intervention was designed to be removed without a trace.

Key learnings: using objects and space as narrative devices, and the technical discipline of integrating technology inside a conservation-listed building without compromise.

Visitor at interactive kiosk, Dian Fossey visitor centre
Visitor using headphones at wall-mounted screen
Exterior of the visitor centre building, Rwanda

Dian Fossey Gorilla Fund Visitor Centre

Rwanda — MASS Design Group

Formula D_ was contracted to produce the exhibits for a new visitor centre in Rwanda to specifications from MASS Design Group — solid timber kiosks, wall-hung media panels, printed wallpapers, and interactive touchpoints across the full centre. The design quality of the architecture set a high bar; the work had to meet it, built and installed on a remote site far from familiar supply chains.

Key learnings: the judgment required to maintain design quality under logistical pressure — translating intent into decisions on a remote site, where the easy compromise is always available.

Overhead view of Shark Sense exhibit with children
Studio testing of Shark Sense with child visitor
Child wearing shark VR headset at exhibit

Interactive Exhibits

Multiple museum sites — South Africa & Middle East

The Shark Sense exhibit asked visitors to experience the world as a shark — using directional sound, airflow, vibration in the handgrips, and VR to simulate the animal’s sensory system. The design challenge was making something physically and emotionally convincing, not just technically functional. The fiberglass shark head, the ergonomics of the platform, the sequencing of the sensory triggers — each was a design decision as much as an engineering one. Red Dot Award 2016, A’ Design Award and IxDA Award 2018.

Across more than a decade of museum projects — tangible user interfaces, custom aluminium touch kiosks, projection-mapped environments, tactile interactives with integrated mechanics — the consistent challenge was designing experiences that worked for real visitors, in real environments, day after day.

Key learnings: the ability to hold design intent and physical engineering in the same frame — and an understanding of how interactive technology succeeds or fails in the hands of real people.

Custom modular power unit, Power Logic SA
International plug top variants

Custom Power Solutions

Power Logic SA, 1995–2002

As R&D Manager and Lead Designer at Power Logic, the task was to develop a modular power system that could accommodate 18 international electrical standards within a single coherent design language — screwless clip assemblies, custom aluminium extrusions, injection moulded components, and a plug over-moulding line with distinct international variants. The design constraint was real: every component had to be manufacturable, certifiable, and consistent across markets. ISO 9001 QMS adopted during this period.

Key learnings: understanding product design as a system — where form, material, manufacture, and compliance are not separate considerations but a single design problem.

Mirror-polished Leaf Salad Servers, Carrol Boyes Fine Art
Stamping press producing salad server blanks

Leaf Salad Servers

Carrol Boyes Fine Art, 2007

The brief was simple: a salad server for a high-end homeware brand known for sculptural stainless steel objects. The design concept — the server as an extension of the hand, shaped for scooping rather than tossing — determined everything that followed: the leaf form, the grip aperture, the mirror polish. Prototypes were laser cut and rolled; final production was stamped and pressed. The servers were in continuous production from 2007 to 2016.

Key learnings: the discipline of following a single design idea all the way through — from concept to tooling to shelf — and letting the market test it over time.

How engagement works

01

Initial conversation

Understanding the project, where it is, and what the likely pressure points are. Useful at any stage, but most useful before a design is fixed.

02

Clarification

Looking carefully at the real constraints — site, standards, materials, supply chain, stakeholders — rather than the assumed ones.

03

Working through the risks

Identifying specific implementation risks clearly enough to design around them or resolve them.

04

Through delivery

Staying available as the independent reference point across disciplines, keeping design intent visible through the decisions that tend to erode it.

Johan du Toit

Johan du Toit is an accomplished designer and technical consultant with more than 30 years’ experience across product design, exhibition design, interactive technology, and manufacturing systems. His work spans award-winning interactive exhibits, internationally certified product systems, heritage installations on protected sites, and large-scale fit-outs in remote locations.

Most of that work was carried out within formula D_, a Cape Town-based experience design studio, where the recurring challenge was the same across very different projects: getting complex, multi-disciplinary work built correctly in environments that did not allow for easy mistakes.

The Whole Product is an independent practice built on that experience. It is not a design studio — it is design intelligence applied to implementation, available to project teams who need someone to hold the whole picture.

Get in touch

If you have a project at concept stage, feasibility stage, or somewhere in delivery where things feel more uncertain than they should — feel free to get in touch.

johan@thewholeproduct.co.za