Knowledge management, learning, and similar stuff
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Let's first set up a tree of knowledge elements (topics) and their
interdependencies:
>>> from cybertools.knowledge.element import KnowledgeElement
>>> progLang = KnowledgeElement()
>>> ooProg = KnowledgeElement()
>>> python = KnowledgeElement()
>>> pyBasics = KnowledgeElement()
>>> pyOo = KnowledgeElement()
>>> pySpecials = KnowledgeElement()
The knowledge may be organized in a hierarchy (taxonomy) of topics; we
don't use this at the moment but it is important to give the knowledge
an overall structure.
>>> python.parent = progLang
>>> pyBasics.parent = python
>>> pyOo.parent = python
>>> pySpecials.parent = python
An important point here is that a knowledge element may depend on another;
this means that somebody first has to acquire one of the knowledge elements
before being able to acquire a dependent element. In our example one
would first have to study object-oriented programming in general and the
Python basics before being able to study object oriented programming
with Python.
>>> pyOo.dependsOn(ooProg)
>>> pyOo.dependsOn(pyBasics)
Now we create a person that knows about basic Python programming:
>>> from cybertools.knowledge.knowing import Knowing
>>> john = Knowing()
>>> john.knows(pyBasics)
Next we have a requirement profile for knowledge in object-oriented
programming with Python:
>>> from cybertools.knowledge.requirement import RequirementProfile
>>> req01 = RequirementProfile()
>>> req01.requires(pyOo)
Now we can ask what knowledge john is lacking if he would like to take
a position with the requirement profile:
>>> missing = john.getMissingKnowledge(req01)
>>> missing
(<...KnowledgeElement...>, <...KnowledgeElement...>)
>>> missing == (ooProg, pyOo,)
True
Luckily there are a few elearning content objects out there that
provide some of the knowledge needed:
>>> from cybertools.knowledge.provider import KnowledgeProvider
>>> doc01 = KnowledgeProvider()
>>> doc02 = KnowledgeProvider()
>>> doc01.provides(ooProg)
>>> doc02.provides(pyOo)
So that we are now able to find out what john has to study in order to
fulfill the position offered:
>>> prov = list(john.getProvidersNeeded(req01))
>>> len(prov)
2
>>> [d[0] for k, d in prov] == [doc01, doc02]
True
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