There are at least three distinct notions of completeness..

Assertions about completeness deal with whether all transactions and accounts that should be in the financial statements are included. For example, management asserts that all purchases of goods and services are included in the financial statements. Similarly, management asserts that notes payable in the balance sheet include all such obligations of the entity.

In the mathematical area of order theory, completeness properties assert the existence of certain infima or suprema of a given partially ordered set. A special use of the term refers to complete partial orders or complete lattices. However, many other interesting notions of completeness exist.

Activity Model: definition of State of transmission The characteristic of records that present all the elements of physical form and intellectual form required by the agency and the juridical system.

The inclusion of all necessary parts or elements.

the resource should be complete, i.e., offer all essential information and elements, as well as inclusion of such components as self-contained activities, materials required, prerequisites, information for obtaining related resources, assessment criteria, links to quality indicators and standards. The resource should offer wide and in-depth information related to the topic.

(logic) an attribute of a logical system that is so constituted that a contradiction arises if any proposition is introduced that cannot be derived from the axioms of the system

Those attributes of a system that provide full implementation of the functions required.

The certainty that all inputs and changes are processed by the system.

In cryptography, a boolean function is said to be complete if the value of each output bit depends on all input bits.

the degree to which all the parts of a software system or component are present and each of its parts is fully specified and developed [ Boehm 78].

NIST] The property that all necessary parts of the entity are included. Completeness of a product is often used to express the fact that all requirements have been met by the product.

An indication of how much of a published run of a serial is held. Completeness is indicated in ranges, for example, Complete (95% 100% held), Incomplete (50%-94% held), Scattered (less than 50% held).

In statistics, completeness is a property of a statistic for which the statistic obtains optimal information, in a certain sense, about the unknown parameters characterizing the distribution of the underlying data.

The state of being complete.