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Messages - Glassboy

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886
Bugs and Issues / Re: Wrong use of extends
« on: November 09, 2015, 09:49:15 am »
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]Consumer software is (relatively) trivial compared to enterprise line of business systems.
Single Line of Business applications are, in turn, simpler than trying to achieve enterprise wide integration.

Paolo

Exactly the point.  Imagine if enterprise software became a collection of simple things that worked well. <insert your favorite Douglas Adams technology quote here>

887
Bugs and Issues / Re: Wrong use of extends
« on: November 06, 2015, 12:11:46 pm »
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I got started on the modelling lark after reading Jean Raymond Abrial's 1970's paper Data Semantics where he says  (paraphrased):  "The reason we can't build systems that work is that we can't unambiguously tell each other what we want."  More than 40 years later, my experience has been  that ""The reason we can't build systems that work is that we can't unambiguously tell each other what we want."  

I blame requirements gathering.  If we see someone struggling to put a shoe on we give them a shoe horn.  But if they tell us they struggle to put there shoes on we come up with solutions ranging from longer laces to strengthening their arms.

The reason that consumer software (cloud and mobile app) is far out performing enterprise software is that one is an exercise where a team or individual builds a great shoe horn and the other there maybe a lace lengthener which you can sort of use as a lever.
 

888
Bugs and Issues / Re: Wrong use of extends
« on: November 06, 2015, 09:13:10 am »
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This is a very interesting discussion, with Paolo on the side of nominative determinism and the importance of giving something the exact, correct name, and Glassboy on the side of Shakespeare: "A rose by any name..." I suspect the answer is somewhere in between. Sure, the authors of UML could have chosen any name for their stick figure, but the fact that they chose an existing English language word with specific meaning suggests that they wanted the metaphorical baggage that comes with that word. However, I don't think you should try to understand a UML model by saying "in English, actor means <X> so that's how we should interpret it in UML"; you have to be aware of the metaphor in the name without staring directly at it.

I'm flattered by the comparison to Shakespeare, but my actual point is the meaning of words changes over time so syntactic and semantic convergence is only temporary, and to try and force them to always converge would be to under take the trials of Sisyphus.

889
Bugs and Issues / Re: Wrong use of extends
« on: November 05, 2015, 02:06:28 pm »
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In my case, however, when my brain sees the "stick man", it says" this vertex represents an "Entity with Agency" and so I expect it to be named as for an Entity".  I don't expect it to be named as an Activity, for example.  I also expect that if two vertices a have the same name and metatype - they represent the same thing.

I don't understand your use of vertex in this context.

890
Bugs and Issues / Re: Wrong use of extends
« on: November 05, 2015, 11:42:42 am »
You're forgetting that there are two language elements to an actor.  There is the stickman sigil and the collection of letters we choose to label it with.

If you look at the stickman and your brain accesses the "entity with agency" concept then it's largely irrelevant that the text actor is often appended, the same way its irrelevant what SCSI and TWAIN actually mean.

As for Archimate, I think that's a whole other mess, I'd refer you to http://masteringarchimate.com/2015/09/04/open-letter-to-tog-2/

891
Bugs and Issues / Re: Wrong use of extends
« on: November 05, 2015, 09:38:41 am »
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My research over the last decade has convinced me that the more rigorous the relationship between the modelling syntax (especially including naming of objects according to their metatype) and the semantics, the better and more insightful the model.


Paolo

Well there are dialectal differences in English and language drift.  I don't see any value in constantly changing the label we attach to actor, we just need to understand what it is a synonym for.  

That doesn't mean that some better method shouldn't replace Use cases.

892
Bugs and Issues / Re: Wrong use of extends
« on: November 04, 2015, 10:47:24 am »
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I think - to a certain extent - you're confusing syntax for semantics.
Can you elaborate?  I've been going around this for a while and I'm not sure I've got it straight in my mind - son any help is appreciated.

Paolo

What you're saying is semantically correct (in English and probably every other Indo-European language), but the syntax of something like a use case doesn't necessarily need to follow the semantics of English.

Syntax relates to the order of elements, whereas semantics relates to the meaning.  

You could change the label user in a usecase to role (or person in role)  but the syntax would say the same.  Which in the end is just saying that these three labels are functioning as synonyms, and over time we have become more precise in our terminology.

893
Bugs and Issues / Re: Wrong use of extends
« on: November 03, 2015, 12:27:37 pm »
I think - to a certain extent - you're confusing syntax for semantics.

894
Bugs and Issues / Re: Paragraph style
« on: November 12, 2015, 08:48:24 am »
It's probably a better idea to create yourself a stylesheet with your styles in it, not try and put them in your document template.

895
Bugs and Issues / Re: Weirdness with actor
« on: November 04, 2015, 10:39:03 am »
Done

896
Bugs and Issues / Weirdness with actor
« on: November 03, 2015, 12:44:43 pm »
With EA12.1 I'm finding when selecting a class then an actor to align horizontally the Actor moves.  Obviously the same thing happens when they're selected the other way, however some of the connectors also move.

Can anyone else replicate this?

897
Bugs and Issues / Re: Lost Cut & Paste in Scripting Windows
« on: October 23, 2015, 02:42:12 pm »
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:)  BTW looking at Financial Industry Business Ontology Foundations beta v 1 while I install.... more freaking stuff  :| - followed the link from the EA Workplace Forum

Can you provide a link.  I'm interested in FIBO.

Go to the OMG document search page and perform keyword search for "FIBO": http://www.omg.org/cgi-bin/apps/doclist.pl

Good luck!  :o

Oh right, I may have already seen it and it may be what lead me to log a bug report on part of the Sparx OWL implementation.

898
Bugs and Issues / Re: Lost Cut & Paste in Scripting Windows
« on: October 23, 2015, 01:14:17 pm »
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:)  BTW looking at Financial Industry Business Ontology Foundations beta v 1 while I install.... more freaking stuff  :| - followed the link from the EA Workplace Forum

Can you provide a link.  I'm interested in FIBO.

899
Bugs and Issues / Re: Enterprise Architect 9.0 on Mac with Crossover
« on: March 29, 2012, 09:49:51 am »
I'm not sure about Zachman but TOGAF installs DLLs.  The others don't to my knowledge.  I'd start there.

900
Uml Process / Re: Use Case Overview diagram
« on: December 03, 2015, 09:06:29 am »
Thanks all, you're pretty much confirming the opinion I'd formed.

I was interested in the diagram type as I constantly come across the need for a type of system context diagram that's not currently well supported anywhere.

My challenge at the moment is modelling the flow of data elements between systems, and tagging significant things that relate to it.  I suspect I'll eventually end up will end up with a UML franken-diagram.

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