UUnified Modelling Language (UML)
Modeling language for designing object-oriented systems. Contrary to popular belief, UML itself is not a method, but a format that can be used with different methods. One method that uses UML is RUP (Rational Unified Process). Unified Modeling Language (UML)Universal description, discovery and integration (UDDI).
A platform independent registry that allows organizations to describe their services and view services from other organizations.Unplanned downtime
Unplanned downtime of the architecture under a BI solution. This can be caused by hardware and / or software errors, but also human errors.Unstructured data
Information (or data) that cannot be stored in a relational, hierarchical, or network database. Think of e-mails, documents, reports, multimedia files and the like.Unstructured information
Any document, file, photo, report, form, etc. that does not have a standardized structure that allows it to be stored in a row oriented storage system. It cannot be translated to rows / records or columns.Update
Changing data by overwriting it. This operation on data is usually not allowed in a data warehouse.User-defined type (UDT)
A new data type can be composed based on the existing primary data types (number, text, bit, etc.).