1) A tModel is a data structure representing a service type (a generic representation of a registered service) in the UDDI (Universal Description, Discovery, and Integration) registry. Each business registered with UDDI categorizes all of its Web services according to a defined list of service types. Businesses can search the registry's listed service types to find service providers. The tModel is an abstraction for a technical specification of a service type; it organizes the service type's information and makes it accessible in the registry database. Another UDDI data structure, the bindingTemplate organizes information for specific instances of service types. When businesses want to make their specification-compliant services available to the registry, they include a reference to the tModelKey for that service type in their bindingTemplate data.
Each tModel consists of a name, an explanatory description, and a Universal Unique Identifier (UUID). The tModel name identifies the service, such as, for example, online order placement. The description supplies more information, which in this case might be place an order online. The unique identifier, called a tModelKey, is a series of alphanumeric characters, such as, for example, uuid:4CD7E4BC-648B-426D-9936-443EAAC8AI. Another example: the tModel uddi-org:http has the description An http or web browser based web service, and the tModelKey uuid:68DE9E80-AD09-469D-8A37-088422BFBC36.
2) TMODEL is a software product used to develop and analyze transportation planning models.