add metadata in AI and AT

[shevandrin]

items of metadata (according to LOM):

1. description
2. version
3. format
4. rights

items of metadata from Opal:

1. author
2. Modified date
3. Created date

@bondarenko-petr add new classes QtiMetadata and QtiContributor on the OOP scheme TODO:

• [x] add ability to use environment variables to get values for metadata
• [x] add mechanics to assign metadata in Rmd
• [x] add metadata for test() and test4opal()
• [x] add creation zip with task only
• [x] add page on site about metadata

[johannes-titz]

Version refers to exercise version.

What is format again?

[shevandrin]

format is qti version)

[shevandrin]

if we keep 'format' here, i would suggest to eliminate slot 'qti_versio' from AssessementItem and AssessmentTest

[johannes-titz]

I agree, this sounds reasonable.

[shevandrin]

LOM ├── Annotation ├── Classfication ├── Educational ├── General │ ├── Aggregation Level │ ├── Coverage │ ├── Description │ ├── Identifier │ │ ├── Entry │ │ └── Identifier │ ├── Keyword │ ├── Language │ ├── Structure │ └── Title ├── LifeCycle │ ├── Contribute │ │ ├── Date │ │ ├── Entry │ │ └── Role │ ├── Status │ └── Version ├── MetaMetadata │ ├── Contribute │ ├── Identifier_md │ ├── Language │ └── MetadataSchema ├── Relation ├── Rights │ ├── CopyrightAndOtherDRestrictions │ ├── Cost │ └── Description └── Technical ├── Duration ├── Format ├── InstallationRemarks ├── Location ├── OthePlatformRequirements ├── Requirement └── Size

[shevandrin]

this is a part of the whole tree of LOM. I can not find the place for 'created_date' and 'modified_date'. The only data, that i can suggest is date in 'contribute'. According to docu it means 'the date of contribution'. So i am confused: should i add new 'dates' or keep the LOM structure?

[johannes-titz]

So Opal is using custom attributes? I think date of contribution is sufficient. authors can bump the version instead. Overall, version is more important.

[shevandrin]

In XMLs from Opal i cant find any tags that relates to creation and modification dates

[johannes-titz]

This is interesting: Es wird festgelegt, dass der -Eintrag mit der Rolle Creator das Datum der letzten Änderung enthält. Außerdem wird festgelegt, dass der -Eintrag mit der Rolle Validator das Datum der Veröffentlichung enthält.

Basically, if you are a creator, date is treated as last modification. If you are a validator, it is the publication date.

[shevandrin]

ok., i keep the date of contribution only

[shevandrin]

@bondarenko-petr for AssessmentItem and AsssessementSection add methods getContributors() on OOP scheme

[shevandrin]

@bondarenko-petr delete slot 'format' from QtiMetadata class

[shevandrin]

@bondarenko-petr add method getContributors() for 'character' @bondarenko-petr in tests: suppress messages about contributors

[shevandrin]

@bondarenko-petr cover creation QtiMetadata and QtiContributor classes, qti_metadata(), qti_contributor(), method createMetadata() with tests

[shevandrin]

@bondarenko-petr cover with tests appropriate transfer of metadata details from Rmd file