Start by being honest about what's special
The real cost of buying
The real cost of building
A framework you can actually use
- Is this a core differentiator or a commodity? If the process is how you beat competitors, lean toward build. If it's plumbing every business has, lean toward buy.
- Does a mature product already do 90 percent of it? If yes, buy it and consider building only a small integration to cover the gap. If everything on the market does 60 percent, custom starts looking reasonable.
- How much will the workarounds cost? Add up the manual labor, the duplicate data entry, and the errors that the off-the-shelf gap creates. Sometimes that number alone justifies building.
- Can you afford to own it? Building means committing to maintenance. If you have no plan for who keeps it running, you are not ready to build.
- How fast do you need it? Buying is fast. Building takes time. If the pain is urgent and a product solves it today, that speed has real value.