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[news.eclipse.tools.uml2] Re: correct mapping of a dynamic simulation model to a UML model

Hello James,

thank you for the answer.

I also considered CallOperationAction and I really wish to model the dynamic simulation model as an activity diagram. I understand the concept of input and ouput parameters of an operation, described by the Input- and OutputPins. But how can I describe a parameter of an operation?

For example: y = k*x
x is the input, y is the output, and k is a parameter of the operation. And k is variable, it can be any number. I want to place the value of k somehow in the UML model, so that the user can easily access it and change it. Where should I place this operation dependent parameter?


Should I place it as a parameter that belongs to the operation?

Thank you for the help.

Axel




James Bruck schrieb:
Hi Axel,

Consider CallOperationAction.   CallOperationActions refer to an operation
of a Class.  They own InputPins that correspond to parameters of the
operation and
OutputPin's that correspond to the return parameter.
I think you can show what you want using InputPins and OutputPins.  You can
use ObjectFlow's between the pins.
You seem to be on the right track with Activity Diagrams.

Alternatively, if you want to model the structure of a certain structured
classifier you can consider using Composite Structure Diagrams.   You can
model properties using parts or roles and connect them using Connectors.
Ports are also useful for modeling interaction points on structured
classifiers.

If you want to convey how a group of associated parts contribute to
accomplish one particular task you might consider creating a collaboration
with roles in it's structure diagram and show how the roles are
inter-connected.

Sequence diagrams could also be of some use if you want to model general
instances or specific instances ( a particular run ) of executing code.

Creating a profile and stereotypes would be a final step if you have
concepts specific to your domain that you wish to emphasize.  ( Keep in mind
that you could just use keywords as a "ultra-light weight" way of
emphasizing your concepts. )

... a little vague but I hope this helps....

Cheers,

- James.



"AxelR" <reichwein@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:ei7ob0$qt6$1@xxxxxxxxxxxxxxxxxxxx

Hello,

I need some help on how to model a dynamic simulation model(for e.g. a
Simulink model) in UML. The dynamic simulation model consists of blocks
with certain characteristics that are connected to each other. For
example: an input block sends a constant value to another block, which
integrates this input value over time, and this result is sent to
another block and so on...

I am asking myself what is the best way to map the information included
in a dynamic simulation model into a UML model with domain specific
stereotypes, in this case specific to the dynamic simulation model.

I first thought it would be practical to map the blocks of the dynamic
simulation to actions in an activity, which would be connected by
control flows, like this:
dynamic simulation model -> Activity, blocks -> Actions, Edges between
blocks-> ControlFlows

However as actions do not have properties (as classes and instances
have), how can I map the parameters of the blocks to the actions? The
block parameters would need to be in a stereotype applied to the action.
But this would mean, that a stereotype would be needed for every
possible blocktype. This wouldn't be a flexible solution as new
blocktypes can be defined any time, and the creation of new stereotypes
would be forced and cumbersome. I would appreciate a solution, where the
stereotypes needed for this domain specific modeling, are minimal in
quantity and size. Ideally this mapping would be wishful: Parameter of a
Block -> Property of an Action

Is there something about actions and activities that I missed to realize
a correct mapping? Or should I try another approach, for example:
dynamic simulation model -> Class containing references to all blocks
included in the dynamic model, blocks -> Instances of classes, Edges
between blocks-> InformationFlows between instances  ?

I would appreciate any help.

Axel