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Sequential Tasks [message #39149] Tue, 04 September 2007 09:39 Go to next message
Eclipse UserFriend
Originally posted by: esti.danfoss.com

Dear All,

I am currently working on developing processes and have been using EPF to
do the job.

The problem I am having right now with EPF is in relation with creating
tasks and make them sequential. EPF - as I understand it - does not
support this. When I create tasks, these tasks will be published in
alphabetical order.
However, some of the processes, require the task to be visualized
sequentially.

Any one has the solution? I appreciate if you can share it with me.
Thankyou in advance.

Best Regards,
Esti
Re: Sequential Tasks [message #39487 is a reply to message #39149] Wed, 05 September 2007 01:17 Go to previous messageGo to next message
Peter Haumer is currently offline Peter HaumerFriend
Messages: 228
Registered: July 2009
Senior Member
Hello Esti.
Check out the EPF Composer white papers in the Getting Started section of
our site for a much more detailed overview to tasks and how to use them in
processes.

In a nutshell: when you create a task then this task is defined independent
of any process in which the task is being performed. For example, a task
called "Detail a Use Case" could be performed several times in many
different phases of a development lifecycle; each time with different
predecessor tasks (control flow) and/or different object flow (e.g. in a
later phase of your project you need to consider more input artifacts for
your use case that were perhaps not yet created in earlier phases of your
project). Hence, a task is first of all defined independent of the
lifecycles and workflows it participates in.

Once, you create a process you can the apply your task in that process (we
call that creating a task descriptor) and define the workflow for that
application (i.e. descriptor). Check out the tutorial in the online help on
how to create a process and apply tasks to it. Once you have done that you
can enter predecessor information or draw activity diagrams to determine the
order of the task in respect to other tasks. You can also change the
presentation order in which tasks are listed within the process' WBS (which
is different from presenting it in the Discipline category, which is I guess
what you tried to do).

The principle idea of separating the definition of work from its application
in processes and workflow comes from UML 2. Here work is defined as
Activities and applied in workflows (called activity diagram) via Actions.
Activities in UML have no control flow; only Actions do. This makes them
reusable for more than one workflow. We apply the same principle. For us
this is Task (activity) and Task Descriptor (action). Yes, EPFC has another
concept called activity, but that one is different to the UML activity (long
story).

Hope this helps, but also check out the papers on the site and the tutorial
in the online help.
Peter.


"Esti" <esti@danfoss.com> wrote in message
news:e98ad4e2b07504a92b24663579b76117$1@www.eclipse.org...
> Dear All,
>
> I am currently working on developing processes and have been using EPF to
> do the job.
> The problem I am having right now with EPF is in relation with creating
> tasks and make them sequential. EPF - as I understand it - does not
> support this. When I create tasks, these tasks will be published in
> alphabetical order.
> However, some of the processes, require the task to be visualized
> sequentially.
>
> Any one has the solution? I appreciate if you can share it with me.
> Thankyou in advance.
>
> Best Regards,
> Esti
>
>
Re: Sequential Tasks [message #39773 is a reply to message #39487] Thu, 06 September 2007 12:51 Go to previous message
Eclipse UserFriend
Originally posted by: esti.danfoss.com

Hi Peter,

Thanks for your response. I am sure I will have questions when I try to
re-organise the process delivery (WBS).
I will post another message in this forum. Hope by that time, you are
available to help me again.

/Esti
Re: Sequential Tasks [message #582644 is a reply to message #39149] Wed, 05 September 2007 01:17 Go to previous message
Peter Haumer is currently offline Peter HaumerFriend
Messages: 228
Registered: July 2009
Senior Member
Hello Esti.
Check out the EPF Composer white papers in the Getting Started section of
our site for a much more detailed overview to tasks and how to use them in
processes.

In a nutshell: when you create a task then this task is defined independent
of any process in which the task is being performed. For example, a task
called "Detail a Use Case" could be performed several times in many
different phases of a development lifecycle; each time with different
predecessor tasks (control flow) and/or different object flow (e.g. in a
later phase of your project you need to consider more input artifacts for
your use case that were perhaps not yet created in earlier phases of your
project). Hence, a task is first of all defined independent of the
lifecycles and workflows it participates in.

Once, you create a process you can the apply your task in that process (we
call that creating a task descriptor) and define the workflow for that
application (i.e. descriptor). Check out the tutorial in the online help on
how to create a process and apply tasks to it. Once you have done that you
can enter predecessor information or draw activity diagrams to determine the
order of the task in respect to other tasks. You can also change the
presentation order in which tasks are listed within the process' WBS (which
is different from presenting it in the Discipline category, which is I guess
what you tried to do).

The principle idea of separating the definition of work from its application
in processes and workflow comes from UML 2. Here work is defined as
Activities and applied in workflows (called activity diagram) via Actions.
Activities in UML have no control flow; only Actions do. This makes them
reusable for more than one workflow. We apply the same principle. For us
this is Task (activity) and Task Descriptor (action). Yes, EPFC has another
concept called activity, but that one is different to the UML activity (long
story).

Hope this helps, but also check out the papers on the site and the tutorial
in the online help.
Peter.


"Esti" <esti@danfoss.com> wrote in message
news:e98ad4e2b07504a92b24663579b76117$1@www.eclipse.org...
> Dear All,
>
> I am currently working on developing processes and have been using EPF to
> do the job.
> The problem I am having right now with EPF is in relation with creating
> tasks and make them sequential. EPF - as I understand it - does not
> support this. When I create tasks, these tasks will be published in
> alphabetical order.
> However, some of the processes, require the task to be visualized
> sequentially.
>
> Any one has the solution? I appreciate if you can share it with me.
> Thankyou in advance.
>
> Best Regards,
> Esti
>
>
Re: Sequential Tasks [message #582797 is a reply to message #39487] Thu, 06 September 2007 12:51 Go to previous message
Eclipse UserFriend
Originally posted by: esti.danfoss.com

Hi Peter,

Thanks for your response. I am sure I will have questions when I try to
re-organise the process delivery (WBS).
I will post another message in this forum. Hope by that time, you are
available to help me again.

/Esti
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