Serial-number service history
Serial-number service history is the complete record of everything done to one specific unit after delivery: service, repairs, replaced parts, inspections and certificates.
Also known as: service history, equipment history, installed base, asset history
When a supplier follows its equipment after delivery, the serial number is what ties the history together. For each unit, the record holds when it was delivered, to which customer and location, its configuration and software version, the services and repairs carried out, the parts replaced, and which certificates or inspections have an expiry date. With the history in one place, the technician can see what was done last time before heading out, the office can decide whether a job is a warranty claim or billable, and spare parts and the next service can be planned. The overview of all units in operation at customers is often called the installed base.
Example
A service supplier to aquaculture marks every unit with a QR code. The technician scans the code on site, sees the previous service report and replaced parts, logs today's work and signs, and the customer gets the report attached to the same serial number.
Read more in the in-depth article on this topic.
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Related terms
- As-built documentation — As-built documentation shows the equipment or installation as it was actually built and installed, with every change from the original drawings included.
- FAT/SAT — A FAT (Factory Acceptance Test) is the test in which the customer accepts the equipment at the supplier's premises before shipping. A SAT (Site Acceptance Test) is the test after installation, where the equipment is tried in its real environment.
- Offline-first — Offline-first is a design principle in which an app works without a network connection, stores what the user does locally and synchronises when the connection returns.