Software Metrics Glossary - D

	Data
	A representation of facts, concepts, or instructions in a manner suitable for communication, interpretation, or processi...
	Source: ( IEEE SESC:729 )
	Data Analysis
	A systematic investigation of the date and their flow in a real or planned system....
	Source: ( ISO/IEC JTC1/SC1:2382-20 )
	Data Attribute
	A characteristic of an entity. Data attributes are generally analogous to data element types (DETs)....
	Source: ( IFPUG CPM 4.1 )
	Data attribute (-type) (Synonym ‘Data Element Type’)
	The smallest parcel of information, within an identified data group, carrying a meaning from the perspective of the soft...
	Source: ( COSMIC-FFP MM Version 2.1 )
	Data communications GSC
	One of the 14 general system characteristics describing the degree to which the application communicates directly with t...
	Source: ( IFPUG CPM 4.1 )
	Data Element Type (DET).
	A data element type is a unique user recognizable, non-repeated field....
	Source: ( IFPUG CPM 4.1 )
	Data Functions.
	The functionality provided to the user to meet internal and external data requirements. Data functions are either intern...
	Source: ( IFPUG CPM 4.1 )
	Data Group (-type)
	A distinct, non empty, non ordered and non redundant set of data attributes where each included data attribute describes...
	Source: ( COSMIC-FFP MM Version 2.1 )
	Data Model
	A model about data by which a reasonable interpretation of the data can be obtained. In the CASE industry a data model i...
	Source: ( ISO/IEC JTC1/SC7; CDIF:15474-1 )
	Data Movement (-type)
	A functional sub-process, identified in the measured software, which moves one or more data attributes belonging to a si...
	Source: ( COSMIC-FFP MM Version 2.1 )
	Decision Database
	A repository for storing acceptance criteria. The criteria that a system or component must satisfy in order to be accept...
	Source: ( SEI:SE-CMM )
	Defect
	A flaw in a system or system component that causes the system or component to fail to perform its required function. A d...
	Source: ( SEI:SW-CMM )
	Defect
	A problem which, if not corrected, could cause an application to either fail or to produce incorrect results. The absenc...
	Source: ( IFPUG CPM 4.1 )
	Defect Density
	The number of defects identified in a product divided by the size of the product component (expressed in standard measur...
	Source: ( SEI:SW-CMM )
	Defect Prevention
	The activities involved in identifying defects or potential defects and preventing them from being introduced into a pro...
	Source: ( SEI:SE-CMM )
	Degree Of Confidence
	An expression of the confidence the organisation has in the data provided. In ISBSG Data Collection Package it is expres...
	Source: ( ISBSG-Release 6 1999 )
	Degree of Confidence
	In this standard the term degree of confidence is used only to mean the degree of confidence that software conforms to i...
	Source: ( ISO/IEC JTC1/SC7; IEC TC56:15026 )
	Degree of influence (DI)
	A numerical indicator of the amount of impact of each of the 14 general system characteristics, ranging from zero to fiv...
	Source: ( IFPUG CPM 4.1 )
	Deliverable
	Any measurable, tangible, verifiable outcome, result, or item that must be produced to complete a project or part of a p...
	Source: ( PMI:PMBOK )
	Delivered Functional Size
	The result obtained after applying both stages of Function Point Analysis. Delivered Functional size assesses the functi...
	Source: ( Total Metrics - Function Point Consultants )
	Delivery Rate
	The productivity measure for creating or enhancing an application. It is expressed by the Project Function Points divide...
	Source: ( IFPUG CPM 4.1 )
	Dependability
	A collective term used to describe the availability performance and its influencing factors: reliability performance, ma...
	Source: ( TC176:ISO 9000:2000 )
	Dependency Item
	A product, action, piece of information, etc., that must be provided by one individual or group to a second individual o...
	Source: ( SEI:SW-CMM )
	Derived Data
	Data that requires processing other than or in addition to direct retrieval and validation of information from internal ...
	Source: ( IFPUG CPM 4.1 )
	Derived Requirements
	Requirements which may or may not be explicitly stated in the customer requirements, and which may be inferred from cont...
	Source: ( SEI:SE-CMM )
	Design
	1) The process of defining the architecture, components, interfaces, and other characteristics of a system or component....
	Source: ( SEI:SE-CMM )
	Design Constraints
	Design limitations or implied requirements which constrain the design solution. A form of requirement which constrains t...
	Source: ( SEI:SE-CMM )
	Design Review
	A process or meeting during which a system, hardware, or software design is presented to project personnel, managers, us...
	Source: ( SEI:SE-CMM )
	Development
	The specification, construction, testing, and delivery of a new information system....
	Source: ( IFPUG CPM 4.1 )
	Development Project
	Set of activities which build one or more software applications. These activities primarily ‘add’ new functionality....
	Source: ( Total Metrics - Function Point Consultants )
	Development project function point count (DFP)
	A count that measures the functions provided to the users with the first installation of the software delivered when the...
	Source: ( IFPUG CPM 4.1 )
	Development Team
	The Development Team consists of those responsible for the delivery of the application under development. It comprises: ...
	Source: ( ISBSG-Release 6 1999 )
	Development Team Support
	Development Team Support are responsible for providing specialist services to the Development Team. Support comprises:Da...
	Source: ( ISBSG-Release 6 1999 )
	Developmental Configuration Management
	The application of technical and administrative direction to designate and control software and associated technical doc...
	Source: ( SEI:SW-CMM )
	Discrimination
	The ability of an FSM Method to react to small changes in the dimensions of the Functional User Requirements being measu...
	Source: ( ISO/IEC JTC1/SC7:14143-3 )
	Distributed Data Processing GSC
	One of the 14 general system characteristics describing the degree to which the application transfers data among compone...
	Source: ( IFPUG CPM 4.1 )
	Duration (DU)
	The number of work periods (not including holidays or other non-working periods) required to complete an activity or oth...
	Source: ( PMI:PMBOK )