Forrester Research found that every dollar invested in UX returns $100 — an ROI of 9,900%.
So why do many companies still treat UX/UI as an optional expense to cut?
What Is UX? What Is UI?
These terms are often used interchangeably, but they're distinct:
UX (User Experience Design)
- The process of making software easy, efficient, and satisfying to use
- Covers: user research, information architecture, user flows, wireframes, usability testing
- Answers: "How will users interact with this software?"
UI (User Interface Design)
- The visual design users see and interact with
- Covers: colors, typography, icons, buttons, layout, animations, spacing
- Answers: "What should this screen look like?"
Both are always required. Good UX with bad UI means users won't want to use it. Beautiful UI with bad UX means they can't actually use it.
How UX Impacts Business Outcomes
1. Increases Conversion Rate
In e-commerce, simplifying checkout flow (reducing from 5 steps to 3) can increase conversion by 20–35% without adding any traffic.
2. Reduces Support Costs
Software that's hard to use = users calling support frequently. Well-designed UX reduces support tickets by 30–50%, according to the Nielsen Norman Group.
3. Boosts Employee Productivity
Internal systems (ERP, CRM, HR) with good UX help employees work faster with fewer errors. IBM reports that employees using software with better UX are 50% more productive.
4. Reduces Post-Launch Fix Costs
Fixing UX during the design phase costs 1 unit. Fixing after launch costs 100. This is why good design is far more cost-effective in the long run.
What Does a Good UX/UI Process Include?
Phase 1: Discover & Research
- User interviews — talk to real target users about their actual pain points
- Competitor analysis — identify best practices in the industry
- User journey mapping — map end-to-end how users interact with the software
Phase 2: Define & Ideate
- Information architecture — organize navigation and content so things are easy to find
- User flow diagrams — plan flows before designing screens
- Low-fidelity wireframes — rough screen sketches without any visual styling
Phase 3: Design
- High-fidelity prototype — design real screens in Figma
- Design system — define component library, color palette, and typography
- Interaction design — micro-animations, state transitions, loading states
Phase 4: Test & Iterate
- Usability testing — let target users try the prototype
- A/B testing — compare two design versions with real users
- Heatmap analysis — see where users click and what they read
Common UX Mistakes in Thai Software
1. Too many features crammed into one screen
Screens with everything create visual overwhelm. Use progressive disclosure — show only what's necessary, let users click for more.
2. Unhelpful error messages
"Error 500" or "Something went wrong" provides no value. Tell users what happened and what they should do next.
3. Unnecessarily complex forms
Asking for unnecessary information upfront drives low completion rates. Every form field should pass the test: "Do we really need this right now?"
4. No feedback when an action is taken
Users press Submit and don't know if the form went through. Every significant action needs visible feedback within 400ms.
5. Designing for desktop when users are on mobile
Check your system's traffic before designing. If 60%+ is mobile, use a Mobile-first design approach.
What Does Good UX/UI Look Like?
Examples from successful apps:
| App | Why the UX works |
|---|---|
| Grab | Book in 3 clicks with real-time tracking |
| LINE | Send a message instantly — nothing to learn |
| Shopee | Search → product → buy: clear, no dead ends |
The common thread: accomplish what you came for, fast, without having to think.
UX Investment ROI
| What You Gain | How to Measure |
|---|---|
| Higher conversion | A/B test before/after |
| Lower support costs | Support ticket count |
| Better user retention | DAU/MAU, churn rate |
| Less post-launch rework | Change request costs |
Summary
UX/UI isn't just aesthetics — it's a business strategy that directly affects revenue, costs, and user adoption.
Well-designed software brings users back, generates referrals, and reduces support burden. All of that flows directly to your bottom line.
Want software that doesn't just work but also looks great and feels intuitive? See Adowbig's design work or contact our design team.