MathWorks · Simulink block authoring · 2014–2017

Reimagining Mask Editor as a technical authoring environment.

I helped move block-mask authoring toward a more structured workflow for parameters, dialog controls, callbacks, validation, icons, and reuse, while mentoring continuation work and co-shaping a longer-range studio vision.

Authoring thesis Expert power needs a visible structure. Parameters, behavior, validation, and presentation should feel like one system.
Company
MathWorks
Role
UX designer, team contributor, and design mentor
Timeframe
2014–2017
Collaborators
Design partner, Masking team, engineering partner, and later project designer
Scope
Authoring workflows, constraints, visual interaction, mentorship, vision
Product state
Direct and team-credited concepts, mentored continuation, and an exploratory studio vision
Précis

Block authors had to coordinate parameters, dialog layout, code, validation, icons, documentation, and reuse. I authored validation and constraint explorations, contributed to a team-credited Mask Editor direction, mentored continuation work, and co-shaped a non-shipped studio vision; the work gave teams a clearer shared model for structured technical authoring.

The product challenge was to turn fragmented expert tasks into one coherent authoring model.

Context and stakes

A block interface is a product inside the product.

Simulink masks let technical creators hide a block's internal complexity behind a tailored icon and parameter dialog. Authoring that experience required both domain knowledge and interface design.

Creators needed to expose the right parameters, choose controls, group content, write callbacks and initialization code, validate inputs, draw an icon, add help, preview the result, and preserve reuse. Fragmentation made an already technical job harder.

Structure

Turn underlying block parameters into a comprehensible dialog.

Discoverability

Make controls, containers, commands, and associations easier to find.

Validity

Help authors define reusable rules without bespoke callback code.

Coherence

Connect dialog, behavior, icon, documentation, preview, and reuse.

Role and collaboration

Direct design work with explicit team credit.

I contributed to and adapted a Model Mask usability-test plan, authored parameter-validation and constraints explorations, and created the Mask Editor 2.0 deck that credits a design partner and the Masking team alongside me.

I later served as the internal mentor for a six-month Masking 2.0 project and co-authored a Block Authoring Studio vision with an engineering partner. The Model Mask material documents planning; completed findings sit outside the current evidence. The studio remained a vision exploration.

01 / MODEL

Map the complete authoring job.

The Model Mask plan focused on discoverability and mental model: could an engineer expose tunable parameters at the model level, understand how the mask related to the underlying model, and use it in a referenced-model workflow?

The broader design-case inventory then decomposed Mask Editor into access, templates, parameters, controls, containers, callbacks, initialization, constraints, icons, documentation, preview, and testing.

Study boundary: I contributed to the plan; I do not claim sole study authorship or completed research outcomes.
02 / AUTHOR

Move from procedural setup toward visual authoring.

The Mask Editor 2.0 concept organized the experience around authoring tasks: add or import parameters, promote underlying values, choose containers, select controls, arrange the dialog, edit properties, and extend the system when standard controls reached their limits.

The work treated layout as part of a technical system. Control choice, property editing, parameter association, callback scope, and preview all needed to stay understandable as the mask grew.

03 / VALIDATE

Make constraints visible and reusable.

My constraint explorations covered type, complexity, dimensions, sign, finiteness, range, and related validation attributes. A parameter could expose associated constraints, create a new one, and open a manager for reuse.

The interaction made a hidden technical relationship legible: define a rule once, name it, associate it with parameters, explain violations, and reuse it across authoring contexts.

04 / VISION

Explore one environment for block authoring.

The Block Authoring Studio vision asked how masking, icon authoring, code-based block mechanisms, templates, testing, and sharing could converge into a more seamless experience.

It was a strategy artifact, not a released product. Its value was aligning teams around the shape of a coherent authoring system and clarifying what Mask Editor might eventually connect.

Block author intent leads through parameter exposure, controls, dialog design, callbacks, constraints, icon and documentation, and a reusable block experience.
Block authoring systemOriginal explanatory redraw synthesizing my direct validation work, team-credited Mask Editor concepts, and mentored continuation without reproducing a pre-release interface.
A validation rule becomes a named reusable constraint, is associated with a parameter, validates input, explains invalid values, and can be reused across parameters and blocks.
Constraint reuse modelOriginal explanatory redraw of my direct constraint explorations and their goal of making validation rules discoverable, explainable, and reusable.
Work in action

Author a block as an integrated experience.

The workflow connected what a block exposes, how users interact with it, and how the author preserves validity.

  1. Choose the interface

    Decide which underlying parameters and behaviors should be exposed.

  2. Structure the dialog

    Select controls and containers that match the data and task.

  3. Define behavior

    Add callbacks and initialization while keeping scope understandable.

  4. Validate

    Associate named rules and explain values outside the allowed boundary.

  5. Represent

    Create the block icon, description, and help needed by downstream users.

  6. Preview and reuse

    Test the result and carry standards or reusable parts into the next block.

Outcomes

A clearer shared direction for technical authoring.

The clearest outcome was shared design direction: a coherent authoring model and a concrete interaction model for reusable constraints.

Consensus
Authoring work became inspectable

Workflow decomposition and wireframes gave the team a shared object for resolving design questions.

Validation
Constraints gained an interaction model

Named rules, parameter associations, discovery, explanation, and reuse became concrete design decisions.

Continuity
Public product evolution

MathWorks later documented richer Mask Editor controls, constraints in R2018a, and another editor modernization in R2022a.

Attribution: public release history shows the surrounding product evolution. I limit my attribution to the historical design, mentorship, and vision artifacts; later capabilities remain part of the team’s product evolution.

Authoring tools shape every experience built with them.

Helping experts structure parameters, validation, behavior, and presentation improves the experience of the downstream users who may never see the authoring environment.

The work reinforced a leadership discipline: direct design, mentored execution, and long-range vision each need a clear operating boundary.

Public product sources and evidence method

Official MathWorks sources establish public product evolution. Dated local test-plan, design, constraints, mentorship, and vision artifacts establish my contribution.

The diagrams abstract the internal work; confidential research and pre-release material is not reproduced.