P4 – Resource Functions

NAF v3: NSV-4 MODAF: SV-4

TaxonomyStructureConnectivityProcessesStatesSequencesInformationConstraintsRoadmap
L4-P4 (NSV-5)
Physical
Resource
Specifications
P1
Resource Types
NAV-2, NSV-2a,7,9,12
AV-2, SV-2a,7,9,12
P2
Resource Structure
NOV-4,NSV-1
OV-4, SV-1
P3
Resource Connectivity
NSV-2, NSV-6
SV-2, SV-6
P4
Resource Functions
NSV-4
SV-4
P5
Resource States
NSV-10b
SV-10b
P6
Resource Sequence
NSV-10c
SV-10c
P7
Physical Data Model
NSV-11b
SV-11
P8
Resource Constraints
NSV-10a
SV-10a
Pr
Configuration Management
NSV-8
SV-8

The P4 Resource Functions view addresses resource (human and non-human) functions – i.e. the activities performed by Resources.

Background

The primary purposes of the P4 are to:

  • Develop a clear description of the necessary data flows that are input (consumed) by and output (produced) by each resource.
  • Ensure that the functional connectivity is complete (i.e. that a resource‚Äôs required inputs are all satisfied).
  • Ensure that the functional decomposition reaches an appropriate level of detail.
  • Provide implementation-specific realisations of the operational activities specified in the L4 – Logical Activities view.

The Functionality Description provides detailed information regarding the:

  • Allocation of functions to resources.
  • Flow of data between functions.

The P4 is the systems view counterpart to the Activity Model (L4) of the operational view.

Usage

  • Description of task workflow.
  • Identification of functional system requirements.
  • Functional decomposition of systems.
  • Relate human and system functions.

Representation

Detailed View Description

Key Elements and Their Relationships

p4-hlmm

Meta-Model

The detailed meta-model for P4 can be viewed here

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