Build-operate-transfer, or BOT, names three different commercial arrangements. The phrase identifies a sequence — someone builds a thing, runs it for a period, then hands it over — and says nothing about what the thing is, what running it involves, or what “hands it over” transfers. Two of the three meanings were in use before software teams adopted the third.
Three arrangements
The infrastructure concession. A private party finances and builds an asset, operates it for a concession period, and transfers it to the public grantor. This is the original and best-documented sense, and it comes with a family of variants: BOO, build-own-operate, omits the transfer; BOOT, build-own-operate-transfer, includes transfer to the grantor; BTO, build-transfer-operate, moves title at construction and leaves the private party operating afterwards. The World Bank’s own guidance cautions that these names vary between countries and that asset title and economic control have to be examined separately.
The capability centre. A vendor incorporates a legal entity in another country, recruits staff into it, in some cases moves its own employees across, and later transfers the entity to the client. EPAM’s account of building an India global capability centre for Zema Global documents this usage directly. What transfers here is a company.
The prototype transfer. A supplier builds a bounded capability, operates it under stated limits to gather evidence about whether it works, and enables an identified recipient to assume agreed responsibilities — or closes it when continuation is not justified. What transfers is software, responsibility, and operating capability. No entity is created and no asset is conceded.
These are not variants of one model. They differ in what is built, who the recipient is, and what changes hands.
The five questions
A BOT proposal is undefined until five things are recorded, and they are the questions to ask of any of the three senses.
What is built? A facility, a legal and organisational capability, a software workflow, or a specified combination.
What does operate mean? The named activities, the workload, the decision authority, and the boundary of what is being observed.
What transfers? Rights, assets, access, obligations, knowledge, and organisational roles are separate items and move on separate schedules. Transferring a legal asset does not supply the skills to operate it, and a repository handover is not a company sale.
When, and to whom? The recipient, the acceptance conditions, the target date, the contingencies, and the evidence that the recipient actually assumed the duties.
What stays outside? Supplier support, third-party dependencies, retained intellectual property, and unresolved obligations.
What stays fixed across all three senses is that structure. What changes is the object: an asset, an entity, or a working system with someone able to run it.
Where the name fails
The acronym does not execute itself. BTO puts transfer in the middle of the name and still leaves the builder operating afterwards, because title moved and control did not. BOT and BOOT overlap in the World Bank’s own nomenclature rather than dividing cleanly. So the position of the T tells you when a legal interest moves, not when anyone becomes responsible for the service. Any arrangement that relies on the acronym to establish the handover point has not established it.
The transfer is asserted from a calendar date. A transfer is complete when the recipient demonstrably holds the duties, not when the agreement says the operating period ended. Where a readiness exercise fails, the accurate record is a pending transfer with a named interim operator. Recording completion because the date arrived produces a system with an owner’s name on it and no owner.
Not to be confused with
A duration. No standard operating period attaches to any of the three senses. Two years, five years, and six weeks are all consistent with the name.
A financing structure. The infrastructure sense carries concession financing and balance-sheet consequences. The software senses borrow the sequence and none of that. Describing a prototype engagement as BOT-like is an analogy about ordering, and it imports no accounting treatment.
Its own variants. The phrase is also written as build-operate-transform-transfer in service-delivery marketing. Treat any expansion of the acronym as a claim requiring the same five answers.