It is the classic engineer's dilemma.
You look at a commercial OEE (Overall Equipment Effectiveness) platform, see the monthly subscription fee, and think: "I could build this myself over the weekend. We already have Excel, Python, and PowerBI. Why pay?"
Technically, you are right. You can build a basic OEE calculator in a weekend. But building a scalable, secure, and user-friendly system that 50 technicians will actually use every day? That is a different beast entirely.
The decision to Build vs. Buy isn't just about the software license fee. It's about the Total Cost of Ownership (TCO) and the hidden risks of becoming a software company by accident.
Here is the honest breakdown to help you decide.
Option A: The "Build" Route (Homegrown Tools)
This usually starts with a spreadsheet on a shared drive or a custom application built by a smart process engineer.
The Appeal
-
Zero License Cost: You use tools you already have (Excel, Google Sheets, Microsoft Power Apps).
-
Total Customization: You can build the exact metrics you want, with no "bloat" features.
The Hidden Risks
-
The "Bus Factor" Risk: Most internal tools are built by one passionate person. They know how the macros work; they know how the SQL database connects. If that person gets promoted or leaves the company, the system becomes a "Zombie App." No one knows how to fix it, so everyone stops using it.
-
The Mobile Gap: It is relatively easy to display data on a 27-inch monitor in the conference room. It is very difficult to build a responsive, user-friendly interface for a technician's smartphone. If the tool is hard to use on an iPad, your floor team (Tom) will simply not enter the data.
-
Maintenance Debt: APIs break. Windows updates cause driver issues. Servers run out of space. If you build it, you have to support it. Every hour your engineers spend fixing the OEE tool is an hour they aren't spending on optimizing the production line.
Verdict: "Build" works for single-site pilots or very small shops (<5 machines) where the data volume is low.
Option B: The "Buy" Route (Commercial Platform)
This involves subscribing to a specialized OEE & Maintenance platform like Fabrico.
The Appeal
-
Day 1 Deployment: You don't spend 6 months in development. You install the sensors or connect the gateway, and you have data immediately.
-
Native Mobile Experience: Platforms like Fabrico invest millions into UX/UI design. The app is built specifically for greasy fingers, small screens, and offline environments. This drives high adoption rates among technicians.
-
Stability & Security: The vendor handles the server uptime, data backups, and security patches. You don't need to involve your IT department for every minor update.
The "Cost" Reality
Yes, there is a subscription fee. But compare that fee to the salary of a full-time developer (or the 20% of your Lead Engineer's time spent debugging Excel). In almost every case, the "Buy" option is cheaper when calculating the annual cost of labor.
Verdict: "Buy" is the correct choice for multi-machine, multi-shift operations where reliability and data integrity are critical.
Critical Comparison: Usability vs. Functionality
When you build internally, you usually focus on Functionality (Does the math work?).
When you buy a platform like Fabrico, you are paying for Usability (Is it easy to use?).
The Fabrico Difference:
We didn't just build a calculator; we built a workflow.
-
Offline Mode: If your WiFi drops, Fabrico keeps working and syncs later. (Hard to build internally).
-
User Permissions: We have robust roles (Admin, Manager, Technician) pre-built. (Tedious to build internally).
-
Audit Trails: We track every edit for compliance. (Complex to build internally).
The Decision Matrix
You should BUILD if:
-
You have fewer than 5 machines.
-
You have a dedicated software team with free capacity.
-
Your process is so unique that no commercial tool fits (e.g., highly experimental R&D).
-
You have zero budget for OpEx, but unlimited budget for internal labor hours.
You should BUY Fabrico if:
-
You need to scale across multiple lines or sites.
-
You need a mobile app that technicians will actually enjoy using.
-
You want your engineers focused on manufacturing, not coding.
-
You need reliable support that picks up the phone when things break.
Conclusion: Don't Reinvent the Wheel
Manufacturing is hard enough without trying to run a software startup inside your factory.
The goal is to improve OEE, not to build an OEE tool. By choosing a proven platform, you fast-track the "Building" phase and get straight to the "Improving" phase.
Save your engineering hours for the product.
Login
Blog
