L4-P4 Activity to Function Mapping

NAF v3: NSV-5 MODAF: SV-5

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 L4-P4 Function to Operational Activity / Service Function Traceability Matrix provides two alternate views:

This view can also support a Service Oriented approach by allowing service functions as well as Operational Activities.

Background

The L4-P4 view depicts the mapping of functions (and optionally, the resources that provide them) to operational activities or service functions. For operational activities it thus identifies the transformation of an operational need into a purposeful action performed by a system or solution. For service functions it provides the link between the services used at the operational level and the specific functions provided by the resources supporting the services.

During requirements definition, L4-P4 plays a particularly important role in tracing the architectural elements associated with system requirements to those associated with user requirements.

Usage

  • Tracing functional system requirements to user requirements.
  • Tracing solution options to requirements.
  • Identification of overlaps.

Representation

Detailed View Description

Key Elements and Their Relationships

Meta-Model

The detailed meta-model for L4-P4 can be viewed here

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