DATA ITEM DICTIONARY

SysML Data Item Dictionary — F-35 MPE

A model-based DID template: the required fields each entry must declare, the traceability links it must hold, and worked example entries spanning navigation, crypto, EW, datalink, and weapons domains.

◤ Profile

«DataItem» Stereotype

SysML 1.6F-35 MPE Profile12_LibraryNIST 800-53DocGen → DID PDF

Every DID is a SysML Block stereotyped «DataItem». All properties are typed against the shared 12_Library package so that ValueTypes, Units, and Enumerations are reused, not redefined. The DID register is generated by DocGen from this model — there is no separate spreadsheet of truth.

◤ Required Fields

Template — every entry must declare

Field	Type	Rule
didId	String (DID-####)	Unique. Immutable once baselined.
name	String	PascalCase, model-wide unique.
definition	Text	1–3 sentence operational meaning.
dataType	Library ValueType	Must reference 12_Library entry.
units	Library Unit	SI or domain unit (e.g., NM, kt, deg).
range	min..max	Inclusive. Use enum for discrete sets.
resolution	Number	Least-significant increment / quantum.
classification	Enum	U / CUI / S / S//NF / TS//SCI.
releasability	Enum	HOME-only, PARTNER-GROUP, NATO, FMS-tailored.
handlingCaveats	Set<Enum>	DEMO-LIMITED, REL TO, ORIG-CTRL, PROP-INFO.
source	Block / Actor	Producing block or external actor.
consumer	Set<Block>	All consuming blocks.
interface	InterfaceBlock	Carrier ICD reference.
lifecycleState	Enum	Draft / Approved / Baselined / Superseded.
owner	Org Unit	Responsible engineering team.
trace.satisfies	Requirement[]	≥1 SyRS/SRS satisfied.
trace.verifiedBy	TestCase[]	≥1 verification artifact.
trace.derivedFrom	DID[]	Parent DIDs if decomposed.

◤ Traceability

Links every DID must hold

⟦ SysML Snippet — DID traceability fabric inside the Cameo model ⟧

▸satisfy → ≥1 SyRS / SRS / SSDD requirement
▸derive → parent DID(s) when decomposed
▸verifiedBy → ≥1 Test Case in 10_Verification
▸typedBy → ValueType / Unit / Enum in 12_Library
▸flowsOn → Interface Block (ICD) port reference
▸producedBy / consumedBy → Block(s) in 04_Structure
▸classifiedAs → Security Requirement (NIST 800-53)
▸ownedBy → Org Unit (UAF Organizational view)

◤ SysML Template

Canonical block declaration

block <<DataItem>> ThreatRecord {
  // identity
  didId          : String   = "DID-0142"
  name           : String   = "ThreatRecord"
  definition     : String   = "Single emitter signature entry used by EW/MDF."

  // typing
  dataType       : ValueType -> Library::ThreatRecordType
  units          : Unit      -> Library::Unitless
  range          : String    = "n/a (composite)"
  resolution     : String    = "n/a"

  // security
  classification   : Classification = SECRET
  releasability    : Releasability  = REL_TO_PARTNER-GROUP
  handlingCaveats  : Caveat[*]      = { DEMO-LIMITED_EXCEPT_PARTNER-GROUP }

  // flow
  source           : Block -> ThreatLibraryService
  consumer         : Block[*] -> { MDFCompiler, UPC::ThreatMgr }
  interface        : InterfaceBlock -> ICD_ThreatLib_v3

  // lifecycle
  lifecycleState   : DIDState = Baselined
  owner            : Org      = "EW Reprogramming / USRL"
}

// Traceability
satisfy   ThreatRecord -- SRS-EW-0214 "MDF shall ingest emitter records"
verify    ThreatRecord -- TC-EW-0098  "MDF round-trip emitter test"
derive    ThreatRecord -- SyRS-MPE-0031 "Threat awareness"

◤ Example Entries

Worked entries across MPE domains

DID	Name	Type	Units	Range	Class	Source	Consumer	Satisfies
DID-0007	AircraftTailNumber	String(8)	—	AF-####	CUI	ALIS/ODIN	UPC, DTC Service	SRS-MP-0011
DID-0042	WaypointLatLon	GeoPoint(WGS-84)	deg	-90..90 / -180..180	U	Mission Builder	Nav Service, UPC, MDL	SRS-NV-0102
DID-0098	CryptoKeyMaterial	OpaqueBlob	bytes	128..4096	S//NF	EKMS/KMI Adapter	Key Store, DTC Service	SRS-CR-0007
DID-0142	ThreatRecord	ThreatRecordType	—	composite	S	ThreatLibraryService	MDF Compiler, UPC::ThreatMgr	SRS-EW-0214
DID-0203	MADLTimeSlot	UInt16	slot	0..127	S	Datalink Planner	Crypto Planner, Output Builder	SRS-DC-0044
DID-0311	WeaponEZRadius	Distance	NM	0..120	TIER-2 // REL PARTNER-GROUP	Weapon Planner	UPC, Stores/CG Model	SRS-SW-0061

◤ Validation

Cameo validation rules enforced on every DID

▸didId matches /^DID-\d{4}$/ and is unique
▸dataType, units, and any enum reference must resolve in 12_Library
▸classification ∈ {U, CUI, S, S//NF, TS//SCI}; releasability set must be consistent
▸≥1 satisfy link to a baselined requirement
▸≥1 verifiedBy link to a Test Case
▸source and consumer blocks must exist and be connected through interface
▸lifecycleState transitions only Draft → Approved → Baselined → Superseded