New Class - Objective

[stansmith907]

Class Definition: objective "describes the characteristics, spatial and temporal extent of the intended object to be observed" See: ISO MI_Objective

Rules:

• [ ] optional

  Element Definitions:

• objectiveId: ( character ) "a unique mdJSON system identifier for the objective" default: UUID
• identifier: [ identifier ] "code used to identify the objective"
• priority: ( character ) "priority applied to the target"
• objectiveType: [ MI_ObjectiveTypeCode ] "collection techniques for the objective"
• function [ character ]: "role or purpose performed by or activity performed at the objective"
• extent: [ extent ] "extent information including the bounding box, bounding polygon, vertical and temporal extent of the objective"
• objectiveOccurrence: [ eventId ] "event or events associated with objective completion"
• pass: [ passId ] "pass of the platform over the objective"
• sensingInstrument: [ instrumentId ] "instrument which senses the objective data"

Rules:

• [ ] objectiveId: required
• [ ] identifier: required

---

mdJson:

{
   "acquisition": [
      {
         "objective": [
            {
               "objectiveId": "objective ID",
               "identifier": [ ],
               "priority": "objective priority",
               "objectiveType": ["MI_ObjectiveTypeCode"],
               "function": ["objective function one"],
               "extent": [ ],
               "objectiveOccurrence": ["eventId"],
               "pass": ["passId"],
               "sensingInstrument": ["instrumentId"]
            }
         ]
      }
   ]
}

[jlblcc]

Can objectiveOccurrence be an empty array? IF so, we shouldn't require it in mdJSON. It can be added in the writer if not present.

[stansmith907]

ObjectiveOccurrence is required according to the XSD and ISO 19115-2 documentation. Mandatory with one or more occurrence.

[dwalt]

Added "function" element. Removed objectiveOccurence recommendation as a required element. It is not required according to ISO 19115-2 2019.

[jwaspin]

@dwalt or @hmaier-fws Are objectiveOccurrence, pass, and sensingInstrument supposed to be other classes? objectiveOccurrence -> event pass -> pass sensingInstrument -> instrument

[dwalt]

@jwaspin objectiveOccurence is an array of references to Event. Pass is an array of references to PlatformPass. SensingInstrument is an array of references to Instrument. Objective is a parent class to PlatformPass and Instrument. Objective has an associated reference to Event (many to many).

[hmaier-fws]

Updated definition of objectiveId to: objectiveId: ( character ) "a unique mdJSON system identifier for the objective" default: UUID