Source: https://mancuso.ai/build-lab/field-service-workflow/

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Home services · equipment serviceIllustrative example

# Field service workflow

One job record from dispatch to invoice, with a technician app that works without a signal.

**Who it serves**

Home-services and equipment-service companies coordinating technicians, parts, and billing.

Illustrative example

-   Web: dispatch board by status
-   Phone: on-site technician checklist

The problem

## What goes wrong  
without it.

Dispatch lives on a whiteboard, the technician's notes live in texts, and the invoice is rebuilt by hand from both. Every handoff loses time and money.

## What the product would do

1.  A dispatch board by status, with technicians, time windows, and travel in view.
2.  A technician checklist on a phone: arrive, diagnose, parts, photos, signature.
3.  Parts and time captured once, on the job, and invoiced from the same record.
4.  Customer updates sent from status changes rather than typed.
5.  A same-day summary for the office: what closed, what is waiting, what needs parts.

## Decided before any screen

-   The single job record and its states from quote to paid; everything else reads and writes that.
-   What the technician must be able to do offline and how conflicts resolve when the signal returns.
-   Which integrations (accounting, payments, parts suppliers) are contracts from day one.

Why it suits the method

## Specified once.  
Built in parallel.

A state machine at the centre and several clients around it. With the job record and its transitions specified, the board, the phone app, and the invoicing path can be built and tested in parallel against one contract.

**Want to see this in practice?** Let’s discuss your use case and explore relevant products I’ve built.

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More examples

## Other problems, same approach.

[Consumer health · device makers**Connected health device companion**](https://mancuso.ai/build-lab/health-device-companion/)[Education · independent schools and small districts**School operations portal**](https://mancuso.ai/build-lab/school-operations-portal/)[B2B · resellers, providers, vendors**Partner onboarding**](https://mancuso.ai/build-lab/partner-onboarding/)

## Start with the problem,  
_not the proposal._

Talk with me about what you need to build, fix, or decide. We’ll explore how Phase 3 Services can help and what an engagement would involve.

[Schedule a conversation](https://scheduling.mancuso.ai/scheduling/)[Engagement types](https://mancuso.ai/services/)