European Space Agency Testbed - Advanced Digital Preservation - page 376

C1 Digital Object
GOME L1B

E29 Design or Procedure
cc *.c-o gdp01_ex -lm

Source Code

E55 Type
C Language

C3 Formal Derivative
Compilation

E28 Conceptual Object
ANSI C Compiler

C1 Digital Object
Gdp01_ex_lin
(L1B

C1 Digital Object
FFTW library (version 2.1.3)
and math libraries

L1C processor)

E28 Conceptual Object
LINUX 2.4.19

E55 Type
executable

E55 Type
LIBRARY

E28 Conceptual Model
DELL

C10 Software Execution
GOME L1B 1C Processing

C1 Digital Object
Execution phase libraries (not
defined now)

E55 Type
OS

C1 Digital Object
GOME L1B Data

C1 Digital Object
GOME L1C

E55 Type
HARDWARE

E55 Type
LIBRARY

C1 Digital Object
Auxiliary data if needed

Fig. 20.5 Software based ontology

• The second module (Fig. 20.5 ) links the processing to those elements (e.g. com-

piler, OS, programming language) that are needed to have a processor. Software
related ontologies are used by the System Administrator when the upgrade is
needed.

The two parts of the schema are shown below:
The colours used in this ontology summarize different knowledge profiles

Earth Observation Expertise: left hand side and top row of boxes
EO archive Expertise: 3 boxes lower right
GOME Expertise: boxes “C8 Digital Device DLR PAF”, “C8 Digital Device
L1b-L1c processor” and “C18 Software Execution GOME processing”

On this basis the Testbed foresees four different DC profiles which are linked to
each knowledge profile:

• GOME User : user with no particular expertise about Earth Observation, GOME

and related EO archives.

• GOME Expert : Expert in Earth Observation and GOME data and products, not

necessarily on archiving techniques.

• Archive Expert : not necessarily expert in EO.

• System Administrator : the archive curator with knowledge of all modules.