Designing for a phone held on a shop floor
A large share of portal users have no desk. They are on a production floor, in a warehouse, in a vehicle or standing at a customer site, using a personal phone on a connection that comes and goes. Designing for that is not a matter of making the desktop layout narrower. It changes what belongs on the first screen, how many taps a task takes, and how much the page is allowed to weigh before it stops being usable.
Practical decisions follow from it. Large touch targets, because hands are gloved or wet. Few form fields with sensible defaults, because typing on a phone is slow and error prone. Clear confirmation when something has been submitted, because a user who is not certain will simply submit again and create a duplicate. Files sized for a mobile connection, since a payslip that takes thirty seconds to open will be requested from HR instead. The portal has then cost money and changed nothing.
Shared devices deserve an explicit decision as well. A terminal on a plant floor used by an entire shift cannot hold a session open, needs a short timeout, and needs a quick way to identify the person without a long password typed on an awkward keyboard. Where that situation exists we design for it directly rather than pretending every user has a private device in their pocket. Getting this wrong produces the familiar arrangement where one worker signs in and the rest of the shift uses that session all day.
- A first screen built around the two or three tasks the user actually came to do
- Large touch targets and short forms with sensible defaults already filled
- Page weight kept low so the portal remains usable on a poor mobile connection
- Explicit confirmation after submission, so nobody creates a duplicate request
- A defined approach for shared terminals: short sessions and fast identification