View source for PKC Workflow/Process

# [[PKC Workflow/Meeting and Communication|Meeting and Communication]]
# [[PKC Workflow/Issues|Issue]]
# [[PKC Workflow/Updates|Updates and reports]]
# [[All activities]]

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== Note == 
When describing a process, it could be confusing as a process relates some inputs to outputs. The [[information entity]] such as [[PKC Workflow/Issues|Issue]] could mean either a process of issuing or the issue result presenting as a page. 

When describing a process in the macroscope, it is always a verb. The input/output is defined according to the function's specification.
 Inputs - [Process] -> Outputs


There are 2 possible reasons why the input/output might be incomplete: 
# [[Stateful functions]] which cause side effects or dependence on global variables:  It is the trade-off when using [[functional representation]]. To stick to the [[functional representation style]], we should think about how to reorganize the function so that it is closer to [[stateless]]. 
# Not capturing the input/output that a function cares about:  Ideally, every input/output should be captured at least in [[low precision]] (type system).  But since there are [[complexity and obscurity when describing real-world knowledge]], it is possible that the input/output is [[incomplete]].


When describing the inner structure of a process, there are more kinds of modeling methods (we can see this in the complexity of programming).  It is feasible to add [[more structure]] (corresponding to different semantics) but note that a [[compact structure]] (desired traits of knowledge representation) is preferable.


== Loop primitive == 
In the simplest form, the process is the mapping of input to output.  To describe the recurring event in the project, we add a Loop structure on top of it.  See the [https://reference.wolfram.com/language/guide/LoopingConstructs.html LoopingConstructs Primitive] in Mathematica
The diagram representing the function with loop will be: 
   
 Inputs -> Process -> Outputs
 Process -> Process

<graphviz>
digraph G {
    input [URL="[[PKC Workflow/Input]]"];
    process [URL="[[PKC Workflow/Process]]"];
    output [URL="[[PKC Workflow/Output]]"];
    input->process;
    process->process [label="recursive"];
    process->output;
}
</graphviz>

== States and Local Variables== 
In a process, there are data generated alongside but isn't intended to serve as the output or expose outside the process.  In programming, it corresponds to [https://reference.wolfram.com/language/tutorial/ModularityAndTheNamingOfThings.html Module and Localization].  In [[PKC Workflow]], the pages of [[PKC Workflow/Meeting and Communication|Meeting and Communication]], [[PKC Workflow/Issues|Issue]],  [[All activities|Activities]], [[PKC Workflow/Updates|Updates and reports]] serve as this kind of localized resources. 

== Subprocess == 


== Branch primitive == 
[https://reference.wolfram.com/language/guide/FlowControl.html FlowControl primitives of Mathematica]

== Others == 
Graph representation of a function: 


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