ISO/IEC 20926:2009
Software and systems engineering — Software measurement — IFPUG functional size measurement method 2009
ISO/IEC 20926:2009 specifies the set of definitions, rules and steps for applying the IFPUG (International Function Point Users Group) functional size measurement (FSM) method.
ISO/IEC 20926:2009 is conformant with all mandatory provisions of ISO/IEC 14143-1:2007. It can be applied to all functional domains and is fully convertible to prior editions of IFPUG sizing methods.
IFPUG function point analysts have identified different delivery rates (hours to deliver a function point) related to building applications in different functional domains calibrated for varying project sizes and software complexities.
ISO/IEC 20926:2009 can be applied by anyone requiring a measurement of functional size. Persons experienced with the method will find ISO/IEC 20926:2009 to be a useful reference.
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Scope
Purpose
Conformity
Applicability
Audience
Normative references
Terms and definitions
Abbreviated terms
Measurement Process
Overview
Gather the available documentation
Determine the counting scope and boundary and identify Funct
Measure data functions
Overview
Identify and group all logical data into data functions
Classify each data function as either an ILF or an EIF
Count DETs for each data function
Count RETs for each data function
Determine the functional complexity for each data function
Determine the functional size for each data function
Measure transactional functions
Overview
Identify elementary processes
Classify each elementary process as a transactional function
Count FTRs for each transactional function
Count DETs for each transactional function
Determine the functional complexity for each transactional f
Determine the functional size of each transactional function
Measure conversion functionality
Measure enhancement functionality
Calculate functional size
Document the function point count
Report the result of the function point count
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Scope
Purpose
Conformity
Applicability
Audience
Normative references
Terms and definitions
Abbreviated terms
Measurement Process
Overview
Gather the available documentation
Determine the counting scope and boundary and identify Funct
Measure data functions
Overview
Identify and group all logical data into data functions
Classify each data function as either an ILF or an EIF
Count DETs for each data function
Count RETs for each data function
Determine the functional complexity for each data function
Determine the functional size for each data function
Measure transactional functions
Overview
Identify elementary processes
Classify each elementary process as a transactional function
Count FTRs for each transactional function
Count DETs for each transactional function
Determine the functional complexity for each transactional f
Determine the functional size of each transactional function
Measure conversion functionality
Measure enhancement functionality
Calculate functional size
Document the function point count
Report the result of the function point count