Messages

1

Suggestions and Requests / Re: Standard structure for web development

« on: November 08, 2013, 04:44:21 am »

Thanks. EA support mentioned this to me at 3 am my time after I noticed the download links in the registered users section are not working.

Let's see if this helps me.

2

Suggestions and Requests / Standard structure for web development

« on: November 07, 2013, 03:59:41 am »

Hi, I am new to EA and want to use the tool to create (bigger) web applications.  

Because of this I am looking for a base.eap file. Does anyone have such a  file with a standard structure that can be used for web development?

I would really appreciate it.

3

General Board / Re: How to extend a use case from the Scenario Bui

« on: May 07, 2015, 02:40:25 am »

Thanks all for your answers. I am new to UML and will certainly look into BPMN. That could indeed be the way to go as mentioned by JohnDoe and backed up by Geert and qwerty.

My focus on the technical side doesn't surprise me, since I've been a developer for over 15 years.

Btw, my previous post was posted later than planned. I forgot to submit it and didn't see the posts before it. And, with two answers from EA administrators that contradict, it doesn't get easier for a newbie.  
But it underlines my earlier thought that this is also a matter of opinion.

Anyway, next week Bittner and Spence will arrive on my door mat. I'll look into it further then.

4

General Board / Re: How to extend a use case from the Scenario Bui

« on: May 05, 2015, 07:13:20 pm »

Let's just say I'm happy I don't have a boss.

After reading up even more, I am convinced of your points of view.
But of course I could have written "Gain access to the system" instead of 'login' ;D

Anyway Bittner/Spence was ordered. Thanks for clearing this up.

Still leaves my original question open: "How would I get an extend relationship into a scenario?"

I know qwerty says stay away from extends and includes and I have read that on different sites as well. But, I just want to know how to do that if I want to use extends.

Login was merely an example I found on the Sparx website

5

General Board / Re: How to extend a use case from the Scenario Bui

« on: May 03, 2015, 12:43:09 am »

Thanks for answering. I will check out Bittner/Spence.

Anyway, I'm still learning, but I guess whether login is a use case or not, is a whole debate on itself where you have supporters on both views.
I would say it is, because the value of an actor is to use the system, which  is not possible without login in my particular project.
Also, if it isn't a use case, then each use case should have the steps: user logs in, system authenticates and this means there is a lot of duplicate content, which is turn not the best practice maintenance wise

Second, isn't include and extend used for respectively mandatory and optionally 'using' other use cases and being able to reuse those other use cases?

Additionally, how would you make an activity diagram with multiple options that can be chosen in any order and as many times as needed?
What's your opinion on the linked activity diagram? My goal is to have a page where someone adds details about the hotel and adds a hotel chain and/or a loyalty program but also has the option to go to the page for adding those if they are not already available as a choice.

Lastly, I wonder if you just stated that Sparx is wrong with a quite a few examples on their website. ;)

6

General Board / How to extend a use case from the Scenario Builder

« on: May 02, 2015, 11:21:54 pm »

Hi,

I just seem not to be able to grasp this. I've searched a lot, but can't find an answer. I might be using the wrong terms while searching, in which case I apologize if the answer is somewhere on the website or in the forum.

For instance, how would I get the extend relation in the Login use case on http://www.sparxsystems.com/enterprise_architect_user_guide/12.0/standard_uml_models/usecase.html in a scenario.
Should it be a step on it's own? Is it an alternate path, since it is optional?
And how would one get another extend relationship in a scenario as well?

In my situation  I have a use case similar to Add hotel and in that use case it should be possible to optionally choose the use cases Add hotel chain and Add loyalty program.
I think the correct activity diagram should be like this: https://flic.kr/p/rrwDU1.
If this isn't correct, I would appreciate it if someone could point me in the right direction.

These use cases are fictional, but the issue is exactly the same as my issue. My contract prevents me from talking about the real deal to third parties.

Thanks,
Michael

7

General Board / Changing structured specifcation step icon keyword

« on: May 03, 2015, 09:29:05 pm »

Is it possible to change and add keywords so that the icon displayed on each step reflects that keyword.

In other words, let's say I want to use a more specific term for a user and I use that term, EA changes the icon accordingly? For example, when I enter 'The driver turns the key to start the engine' I would like to have an actor icon displayed even when normally that step would get a system icon.

Thanks.
Michael

8

General Board / Postgres Data Modelling

« on: December 13, 2014, 11:12:05 pm »

Hi,

Postgresql supports arrays, but I can't find a way to model this within EA.

Example:
I have a table named people. One of the columns is AdditionalGivenNames. Since I never know how many names someone has, I would like to store an array in this column. Each value would be varchar, so if I would create the table the syntax would be

Code: [Select]

CREATE people ( AdditionalGivenNames varchar[] );

Has anybody got any experience with this?

Thanks,
Michael

9

Automation Interface, Add-Ins and Tools / Columns missing in tables in data model

« on: July 30, 2015, 10:59:15 pm »

While working on an ERD, I transformed several packages into data models. On some data models the columns are missing in the tables. I created all the ERDs the same way.

When recreating the same ERD in a new project, the transformation goes just fine (except for Postgresql data type text being altered into varchar(50).

Has anybody seen this issue before? And more important does anybody know how to fix this?