OSID - osid.assessment.Item Service Interface Definition

Interface	osid.assessment.Item
Implements	`osid.OsidObject`
Implements	`osid.Aggregateable`
Used By	`osid.assessment.ItemAdminSession`
	`osid.assessment.ItemList`
	`osid.assessment.ItemLookupSession`
	`osid.assessment.Response`
Description	An `Item` represents an individual assessment item such as a question. Like all OSID objects, a `Item` is identified by its `Id` and any persisted references should use the `Id`. An `Item` is composed of a `Question` and an `Answer`.
Method	getLearningObjectiveIds
Description	Gets the `Ids` of any `Objectives` corresponding to this item.
Return	`osid.id.IdList`		the learning objective `Ids`
Compliance	`mandatory`		This method must be implemented.
Method	getLearningObjectives
Description	Gets the any `Objectives` corresponding to this item.
Return	`osid.learning.ObjectiveList`		the learning objectives
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getQuestionId
Description	Gets the `Id` of the `Question`.
Return	`osid.id.Id`		the question `Id`
Compliance	`mandatory`		This method must be implemented.
Method	getQuestion
Description	Gets the question.
Return	`osid.assessment.Question`		the question
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAnswerIds
Description	Gets the `Ids` of the answers. Questions may have more than one acceptable answer.
Return	`osid.id.IdList`		the answer `Ids`
Compliance	`mandatory`		This method must be implemented.
Method	getAnswers
Description	Gets the answers.
Return	`osid.assessment.AnswerList`		the answers
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getItemRecord
Description	Gets the item record corresponding to the given `Item` record `Type`. This method is used to retrieve an object implementing the requested records. The `itemRecordType` may be the `Type` returned in `getRecordTypes()` or any of its parents in a `Type` hierarchy where `hasRecordType(itemRecordType)` is `true`.
Parameters	`osid.type.Type`	`itemRecordType`	the type of the record to retrieve
Return	`osid.assessment.records.ItemRecord`		the item record
Errors	NULL_ARGUMENT		`itemRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(itemRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.