Data Model Work Group Sessions Oct 14/15, 2003 at InterOpOct2003Attendees at Oct 14 DM WG session1. Introduction: JonathanMcDowell (JM)Aim for the creation of a White Paper describing the 'IVOA' Data Model | |||||||||||||||||||||||||||
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< < | A number of data models have been considered so far, and these show areas of similarities. | ||||||||||||||||||||||||||
> > | We are starting with highest level concepts; once they are agreed, we will define lower level concepts. The level of detail will be guided by the requirements for querying. The model must be extensible to allow lower level commonalities to be captured. In addition this should encourage sharing of concepts. | ||||||||||||||||||||||||||
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2. DM Use Cases: Alberto MicholAlberto's slides in ppt format There is a requirement for Science Cases to help in the scoping of the Data Models. Initially could look at the Science Cases from e.g. AstroGrid (AstroGrid top ten science cases) and NVO etc. Issue of science use cases required for this. NicholasWalton: Meeting needs to identify responsible person/people to lead the requirements capture and analysis process. AGREED: Alberto Michol, Brian Thomas, David Giaretta, agreed to supervise this process of collation and first cut review of science requirements for Data Models. All are encouraged to send their science use cases for input into this activity. Discussion points Q. ??: Inclusion of plate data from smaller institutes A. JM: will be considered as a lower priority case. Q. Javier Solano: scope to include say Planetary Data. A. JM: not first priority but will be included. Thus RA,Dec is not seen as the key identifier of objects as this isn't the case for say planetary data! Q. Lyndsay Fletcher: assessment of quality A. Doug Tody: data characterisation is a key component of this activity, thus user assesment of 'quality' when assessing data for their use will be possible. | |||||||||||||||||||||||||||
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> > | Reports on mini-modelsQuantity - Pat D will post summary
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> > | Transformations: (David Berry)
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3. Road Map | |||||||||||||||||||||||||||
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< < | Requiments needed by the DAL group. Doug Tody noted upcoming input required from the data model needed by the DAL group in their v1.0 SSA and v1.1 SIA standards. | ||||||||||||||||||||||||||
> > | Requirements needed by the DAL group. Doug Tody noted upcoming input required from the data model needed by the DAL group in their v1.0 SSA and v1.1 SIA standards. | ||||||||||||||||||||||||||
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> > | (There was disagreement on which activities were slow and which were fast) | ||||||||||||||||||||||||||
Move with idea of local namespaces.
JonathanMcDowell: Names against Milestone Tasks
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< < | -- NicholasWalton - 16 Oct 2003 | ||||||||||||||||||||||||||
> > | -- NicholasWalton & DavidGiaretta - 16 Oct 2003 | ||||||||||||||||||||||||||
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Data Model Work Group Sessions Oct 14/15, 2003 at InterOpOct2003Attendees at Oct 14 DM WG session1. Introduction: JonathanMcDowell (JM)Aim for the creation of a White Paper describing the 'IVOA' Data Model A number of data models have been considered so far, and these show areas of similarities.
2. DM Use Cases: Alberto MicholAlberto's slides in ppt format There is a requirement for Science Cases to help in the scoping of the Data Models. Initially could look at the Science Cases from e.g. AstroGrid (AstroGrid top ten science cases) and NVO etc. Issue of science use cases required for this. NicholasWalton: Meeting needs to identify responsible person/people to lead the requirements capture and analysis process. AGREED: Alberto Michol, Brian Thomas, David Giaretta, agreed to supervise this process of collation and first cut review of science requirements for Data Models. All are encouraged to send their science use cases for input into this activity. Discussion points Q. ??: Inclusion of plate data from smaller institutes A. JM: will be considered as a lower priority case. Q. Javier Solano: scope to include say Planetary Data. A. JM: not first priority but will be included. Thus RA,Dec is not seen as the key identifier of objects as this isn't the case for say planetary data! Q. Lyndsay Fletcher: assessment of quality A. Doug Tody: data characterisation is a key component of this activity, thus user assesment of 'quality' when assessing data for their use will be possible.3. Road MapRequiments needed by the DAL group. Doug Tody noted upcoming input required from the data model needed by the DAL group in their v1.0 SSA and v1.1 SIA standards.Short term goals:
Other issues:
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-- NicholasWalton - 16 Oct 2003
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