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07-Sep-2005

Nokia Mobility Conference 2005

Cesar Tardaguila in design-nation posts a link to the Nokia Mobility Conference 2005 that will take place in Barcelona in November 2-3.

New version of Linux-HA (heartbeat)

jleyva in Métricas Web posts a link to the announcement of Linux-HA version 2.

Use Cases are not "functions"

Joserra in Najaraba.com highlights an error that some beginners make when starting out with UML and Use Cases. There is a natural tendency to make one Use Case for each action made by the users. But the real purpose of Use Cases, as described in the article, Why usecases are not functions, is to tell a story about some way of using a system to do something useful. Use Cases should not generally have sequences, nor should they have extensive hierarchies. They should help us focus on what the client really wants from the system.

...APIs of the web

Alberto Molpeceres in Y si hablamos de... posts a link to programmableweb, a site that is attempting to collect information about the APIs that are available to supply web services using the Web 2.0 architecture: AJAX.

Ransom Software

Juanjo Navarro in más que código describes a new and interesting business model for obtaining some financial gain from the development of open source software. It has been tried by Alex Shields (alias Zem) for some of the plugins of Textpattern.

  • The developer creates the plugin, documents it and fixes a price, say 200 euros.

  • An announcement is made that the plugin will be released as Open Source provided that the price is paid within a set period of time, say 60 days.

  • If the time period expires and the price is not achieved, then the software is not released under an Open Source licence, and the amounts paid by the contributors are refunded.

Here is a link to the software ransom FAQ describing the system.



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