Interface Specification & Design

Before writing a single line of code, we create a professional, testable specification to ensure your product is functional, intuitive, and beautifully designed. Just like an architect produces sketches and simulations before construction, our process starts with goals, constraints, and success criteria, then moves through flows, wireframes, and interactive prototypes—so you can see and validate the product before development begins.

Professional Software Requirements Specification (SRS)

The specification process begins with collaborative workshops. Together we define audiences, roles, use cases, user journeys, information architecture, and page/feature breakdowns. You receive clickable interface sketches/prototypes that simulate real usage, allowing stakeholders to experience navigation, states, and edge cases and give focused feedback early.

What’s included

• Business goals, KPIs, success metrics

• Personas, roles, permissions and access rules

• User journeys, task flows, sitemap & IA

• Feature list with acceptance criteria & priority

• Non-functional requirements (performance, security, privacy, compliance)

• System interactions, states, errors, and edge cases

• Integration points (APIs, webhooks, data contracts) and data models

UI/UX of the Highest Level

We fuse specification and design to create usable, consistent, and on-brand interfaces. Our design team specializes in clean, accessible UI with pixel-accurate components and micro-interactions. We design responsively for web, mobile, and IoT/HMI screens, and we validate choices with UX heuristics and (when desired) user testing.

Design outcomes

• Wireframes (low/high fidelity) and interactive prototypes

• Visual design & design system (components, states, tokens, typography)

• Accessibility (WCAG) considerations from day one

• Localization & RTL support where relevant

• Developer-ready assets and specs (e.g., Figma handoff)

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Productized Services (Pick What You Need)

• Discovery & Product Strategy – Vision, scope, competitive scan, KPI framework

• PRD & SRS Authoring – Product Requirements Document + Software Requirements Specification, kept in version control

• Information Architecture & Flows – Sitemap, journeys, states, edge cases

• Wireframing & Prototyping – Clickable prototypes for stakeholder buy-in and testing

• UI Design & Design System – Reusable components, accessibility, theming

• API & Interface Contracts – OpenAPI/JSON schemas, event models, error catalog

• Validation & Usability Testing – Scripts, sessions, findings, iteration plan

• Handover & Dev Support – Developer handoff, design QA, change requests workflow

• Regulatory & Quality Support – Traceability (requirements ↔ tests), V&V alignment (e.g., for medtech)

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Our Process

1. Discover – Goals, constraints, personas, KPIs

2. Define – PRD/SRS, flows, IA, acceptance criteria

3. Design – Wireframes → visual design → interactive prototype

4. Validate – Reviews, usability sessions, accessibility checks

5. Specify – Final specs, API contracts, states, error handling, analytics

6. Handover – Dev-ready assets, backlog, and support during implementation

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Deliverables You Can Count On

• PRD & SRS documents (versioned)

• User flows, IA, and wireframes

• Interactive prototype (clickable)

• Visual design files & design system

• API specs (OpenAPI), data models, event schemas

• Acceptance criteria & test plan outline

• Accessibility checklist & localization notes

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Built for Complex Systems & Applications

We excel in complex, multi-role systems—admin consoles, command-and-control dashboards, IoT/HMI interfaces, data-heavy B2B apps, and regulated domains (e.g., FDA-aligned documentation and validation support). Clear specifications reduce ambiguity, shorten development time, and lower rework and costs.

Outcome: a shared, unambiguous blueprint that de-risks development, aligns all teams, and accelerates delivery—resulting in a product that users love and engineers can build confidently.

Ready to turn your idea into a build-ready specification? Let’s start with a short discovery session and outline your PRD/SRS and prototype plan.