UML Use Case Diagrams: Tips

Contents: What is a UML Use Case Diagram (UCD), and when should I use it? How do you know who the actors are in a UCD? How do you know what to put in the "System" box? The actors in my diagram have interactions. How do I represent them? I am trying to represent a sequence of actions that the system performs. How do I do it? How is a UML Use Case Diagram different from a traditional flow chart? When do I use the uses arrow? When do I use the extends arrow? What is the difference between uses and extends?

UML basics: The class diagram

Summary: from The Rational Edge: As the most important example of the new structure diagram type in UML 2, the class diagram can be used by analysts, business modelers, developers, and testers throughout the software development lifecycle. This article offers a comprehensive introduction.

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SQL Cheat Sheet: Query By Example

MySQL 5 Specific syntax for doing multi-table UPDATE joins UPDATE customers, orders SET customers.rating = 'Good' WHERE orders.customer_id = customers.customer_id

Cleaning Up Node Edit Forms | Drupaler | Drupal Blog, Collaborative Drupal Resource

Almost every module you install will put something more on the node forms, until you end up scrolling forever just to reach the Save button. Not to mention most of this stuff you won't want them playing with anyway. Of course a lot of this "tidying" can be done with roles and user permissions. You can hide most stuff from Joe Editor this way, but sometimes the form is still pretty long and unwieldy. So how do you make prettier node forms?

Ubuntuzilla Repository Makes Firefox 3.6 Installation in Ubuntu Even Simpler | Tech Drive-in

We have already seen, how easy it is to install Firefox 3.6 in Ubuntu using Ubuntuzilla script. But, what if there is a better way to do it? With the introduction of Ubuntuzilla repository, it has become even easier installing latest Firefox updates in Ubuntu. No more command line burn outs, just use the Synaptic instead, if that is what you like. Lets get started.


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