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    <title>canoas'blog - PDC 2003</title>
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    <description>Arquitecturas de Serviços Web</description>
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      <title>canoas'blog - PDC 2003</title>
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    <language>pt-pt</language>
    <copyright>Jose Antonio Silva</copyright>
    <lastBuildDate>Wed, 04 Feb 2004 02:41:53 GMT</lastBuildDate>
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        <p>
Este novo site, gémeo do famoso portal da <a href="http://TheServerSide.com">comunidade
Java</a>, está a começar muito bem e já se encontram aqui bons artigos.
Recomendo o <a href="http://www.theserverside.net/articles/article.aspx?l=AutonomousServices">Autonomous
Services and The New Information Architecture</a>. É uma excelente compilação
de temas relacionados com a evolução das tradicionais noções n-tier
(DNA) para serviços autónomos. Descreve, por exemplo, como pode ser modelada
a arquitectura dos dados nestas soluções: Request/Response Data, Reference
Data, Activity Data &amp; Resource Data. Está muito inspirado nas sessões
do <a href="http://msdn.microsoft.com/events/pdc/agendaandsessions/sessions/default.aspx">Architecture
Symposium</a>.
</p>
        <p>
Neste site também se pode encontrar <a href="http://www.theserverside.net/booksinreview/pag.aspx">alguns
capítulos do novo Patterns &amp; Practices sobre Performance</a>, por exemplo <a href="http://www.theserverside.net/booksinreview/chapters/chapter11.zip">Improving
Web Services Performance</a>. E uma entrevista ao "pai" de muitas das coisas que se
discutem neste blog: <a href="http://www.theserverside.net/talks/index.aspx">Don Box
- Indigo Architect</a>.
</p>
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      </body>
      <title>TheServerSide.NET: Autonomous Services</title>
      <guid isPermaLink="false">http://canoas.com/blog/PermaLink,guid,209b4043-9ff8-4a72-87e6-6e1123a1b810.aspx</guid>
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      <pubDate>Wed, 04 Feb 2004 02:41:53 GMT</pubDate>
      <description>&lt;p&gt;
Este novo site, g&amp;#233;meo do famoso portal da &lt;a href="http://TheServerSide.com"&gt;comunidade
Java&lt;/a&gt;, est&amp;#225; a come&amp;#231;ar muito bem e j&amp;#225; se encontram aqui bons artigos.
Recomendo o &lt;a href="http://www.theserverside.net/articles/article.aspx?l=AutonomousServices"&gt;Autonomous
Services and The New Information Architecture&lt;/a&gt;. &amp;#201; uma excelente compila&amp;#231;&amp;#227;o
de temas relacionados com a evolu&amp;#231;&amp;#227;o das tradicionais no&amp;#231;&amp;#245;es n-tier
(DNA) para servi&amp;#231;os aut&amp;#243;nomos. Descreve, por exemplo, como pode ser modelada
a arquitectura dos dados nestas solu&amp;#231;&amp;#245;es: Request/Response Data, Reference
Data, Activity Data&amp;nbsp;&amp;amp;&amp;nbsp;Resource Data. Est&amp;#225; muito inspirado nas sess&amp;#245;es
do &lt;a href="http://msdn.microsoft.com/events/pdc/agendaandsessions/sessions/default.aspx"&gt;Architecture
Symposium&lt;/a&gt;.
&lt;/p&gt;
&lt;p&gt;
Neste site tamb&amp;#233;m se pode encontrar &lt;a href="http://www.theserverside.net/booksinreview/pag.aspx"&gt;alguns
cap&amp;#237;tulos do novo Patterns &amp;amp; Practices sobre Performance&lt;/a&gt;, por exemplo &lt;a href="http://www.theserverside.net/booksinreview/chapters/chapter11.zip"&gt;Improving
Web Services Performance&lt;/a&gt;. E uma entrevista ao "pai" de muitas das coisas que se
discutem neste blog: &lt;a href="http://www.theserverside.net/talks/index.aspx"&gt;Don Box
- Indigo Architect&lt;/a&gt;.
&lt;/p&gt;
&lt;img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=209b4043-9ff8-4a72-87e6-6e1123a1b810" /&gt;</description>
      <comments>http://canoas.com/blog/CommentView,guid,209b4043-9ff8-4a72-87e6-6e1123a1b810.aspx</comments>
      <category>Arquitecturas</category>
      <category>Patterns</category>
      <category>PDC 2003</category>
      <category>Web Services</category>
    </item>
    <item>
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        <p>
Durante as sessões que assisti sobre WinFS e sobre Sincronização/Offline
sempre me suscitou curiosidade qual seria a reacção da <a href="http://www.groove.net/">Groove
Networks</a> perante a evolução dos mecanismos de replicação
que está acontecer na próxima versão do Windows.
</p>
        <p>
Pois o criador do Lotus Notes, que também esteve no PDC e no SAF, respondeu
a todas as minhas questões durante uma entrevista para a EWeek:<br /><a title="http://www.eweek.com/article2/0,4149,1380700,00.asp" href="http://www.eweek.com/article2/0,4149,1380700,00.asp">Ray
Ozzie on Longhorn &amp; Groove Networks</a></p>
        <p>
As relações entre <a href="http://weblogs.asp.net/dmarsh/posts/34275.aspx">WinFS</a>, <a href="http://longhornblogs.com/abudja/posts/1283.aspx">Offline
Syncronization</a>, <a href="http://weblogs.asp.net/dmarsh/posts/34571.aspx">Peer-to-Peer</a> e <a href="/blog/PermaLink.aspx?guid=966a815a-6d6a-4e93-ae56-1cc1bc86d3bc">Indigo</a> são
muito interessantes e esperemos que fique cada vez mais simples fazer aplicações
offline "expertas".
</p>
        <img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=e145b87b-10f2-4d3a-89b8-10d097f3a9db" />
      </body>
      <title>Ray Ozzie comenta o Longhorn</title>
      <guid isPermaLink="false">http://canoas.com/blog/PermaLink,guid,e145b87b-10f2-4d3a-89b8-10d097f3a9db.aspx</guid>
      <link>http://canoas.com/blog/2003/11/14/Ray+Ozzie+Comenta+O+Longhorn.aspx</link>
      <pubDate>Fri, 14 Nov 2003 12:53:23 GMT</pubDate>
      <description>&lt;p&gt;
Durante as sess&amp;#245;es que assisti sobre WinFS e sobre Sincroniza&amp;#231;&amp;#227;o/Offline
sempre me suscitou curiosidade qual seria a reac&amp;#231;&amp;#227;o da &lt;a href="http://www.groove.net/"&gt;Groove
Networks&lt;/a&gt;&amp;nbsp;perante a&amp;nbsp;evolu&amp;#231;&amp;#227;o&amp;nbsp;dos mecanismos de replica&amp;#231;&amp;#227;o
que est&amp;#225; acontecer na pr&amp;#243;xima vers&amp;#227;o do Windows.
&lt;/p&gt;
&lt;p&gt;
Pois o&amp;nbsp;criador do Lotus Notes, que tamb&amp;#233;m esteve no PDC e no SAF,&amp;nbsp;respondeu
a todas as minhas quest&amp;#245;es durante uma entrevista para a EWeek:&lt;br&gt;
&lt;a title=http://www.eweek.com/article2/0,4149,1380700,00.asp href="http://www.eweek.com/article2/0,4149,1380700,00.asp"&gt;Ray
Ozzie on Longhorn &amp;amp; Groove Networks&lt;/a&gt;
&lt;/p&gt;
&lt;p&gt;
As rela&amp;#231;&amp;#245;es entre &lt;a href="http://weblogs.asp.net/dmarsh/posts/34275.aspx"&gt;WinFS&lt;/a&gt;, &lt;a href="http://longhornblogs.com/abudja/posts/1283.aspx"&gt;Offline
Syncronization&lt;/a&gt;, &lt;a href="http://weblogs.asp.net/dmarsh/posts/34571.aspx"&gt;Peer-to-Peer&lt;/a&gt; e&amp;nbsp;&lt;a href="/blog/PermaLink.aspx?guid=966a815a-6d6a-4e93-ae56-1cc1bc86d3bc"&gt;Indigo&lt;/a&gt; s&amp;#227;o
muito interessantes e esperemos que fique&amp;nbsp;cada vez&amp;nbsp;mais simples fazer aplica&amp;#231;&amp;#245;es
offline "expertas".
&lt;/p&gt;
&lt;img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=e145b87b-10f2-4d3a-89b8-10d097f3a9db" /&gt;</description>
      <comments>http://canoas.com/blog/CommentView,guid,e145b87b-10f2-4d3a-89b8-10d097f3a9db.aspx</comments>
      <category>PDC 2003</category>
      <category>SAF 2003</category>
      <category>Sync/Offline</category>
      <category>Web Services</category>
    </item>
    <item>
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        <p>
          <img src="/blog/content/binary/whitehorse.PNG" align="left" border="0" />Com a próxima
versão do Visual Studio (Whidbey) vem uma nova ferramenta de modelação
(Whitehorse). O objectivo é introduzir um conjunto de ferramentas <em>model-driven</em> que
suportem não uma linguagem universal mas sim "Domain Specific Modelation
Languages". Em várias sessões do PDC vimos essa ferramenta aplicada na especificação,
desenho, implementação, instalação e monitorização de
Web Services. A imagem é um exemplo retirado dos slides da sessão do <span>Keith
Short</span>: Solution Architecture in the Service-Oriented Enterprise (<a href="http://www.gotdotnet.com/team/PDC/4286/ARCSYM3.ppt">PPT</a>).
</p>
        <p>
Outros comentários e links:<br /><a href="http://weblogs.asp.net/cnagel/posts/34356.aspx">Roadmap das ferramentas de
desenvolvimento 2004-2005</a><br /><a href="http://dotnetjunkies.com/WebLog/jeromyc/posts/2958.aspx">Building Manageable
Apps</a> (<a href="http://www.gotdotnet.com/team/PDC/4277/ARC230.ppt">PPT</a>)<br /><a href="http://www.eweek.com/article2/0,4149,1229965,00.asp">Microsoft Embraces Modeling
(EWeek)</a></p>
        <p>
Neste artigo da EWeek pode ler-se <em>"To fuel its drive into modeling, Microsoft
has been amassing a core of top-level UML and modeling talent, just as the company
has done in XML and Web services, sources said. Over the past year, Microsoft has
hired a series of UML experts, including four who previously worked for Rational:
Jochen Seemann, Wojtek Kozaczynski, Jack Greenfield and Ed Eykholt."</em> - mas se
isto não é só UML será que a Microsoft vai lançar aqui
algo divergente do UML?<br /></p>
        <img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=6c7b77f6-2a11-47ae-ae42-7d5e8e86d312" />
      </body>
      <title>SOA Designer?</title>
      <guid isPermaLink="false">http://canoas.com/blog/PermaLink,guid,6c7b77f6-2a11-47ae-ae42-7d5e8e86d312.aspx</guid>
      <link>http://canoas.com/blog/2003/10/31/SOA+Designer.aspx</link>
      <pubDate>Fri, 31 Oct 2003 02:19:35 GMT</pubDate>
      <description>&lt;p&gt;
&lt;img src="/blog/content/binary/whitehorse.PNG" align=left border=0&gt;Com a pr&amp;#243;xima
vers&amp;#227;o do Visual Studio (Whidbey) vem uma nova ferramenta de modela&amp;#231;&amp;#227;o
(Whitehorse). O objectivo &amp;#233; introduzir um conjunto de ferramentas &lt;em&gt;model-driven&lt;/em&gt; que
suportem n&amp;#227;o uma linguagem universal mas sim&amp;nbsp;"Domain Specific Modelation
Languages". Em v&amp;#225;rias sess&amp;#245;es do PDC vimos essa ferramenta aplicada na especifica&amp;#231;&amp;#227;o,
desenho, implementa&amp;#231;&amp;#227;o, instala&amp;#231;&amp;#227;o e monitoriza&amp;#231;&amp;#227;o de
Web Services. A imagem &amp;#233; um exemplo retirado dos slides da sess&amp;#227;o do &lt;span&gt;Keith
Short&lt;/span&gt;: Solution Architecture in the Service-Oriented Enterprise (&lt;a href="http://www.gotdotnet.com/team/PDC/4286/ARCSYM3.ppt"&gt;PPT&lt;/a&gt;).
&lt;/p&gt;
&lt;p&gt;
Outros coment&amp;#225;rios e links:&lt;br&gt;
&lt;a href="http://weblogs.asp.net/cnagel/posts/34356.aspx"&gt;Roadmap das ferramentas de
desenvolvimento 2004-2005&lt;/a&gt;
&lt;br&gt;
&lt;a href="http://dotnetjunkies.com/WebLog/jeromyc/posts/2958.aspx"&gt;Building Manageable
Apps&lt;/a&gt;&amp;nbsp;(&lt;a href="http://www.gotdotnet.com/team/PDC/4277/ARC230.ppt"&gt;PPT&lt;/a&gt;)&lt;br&gt;
&lt;a href="http://www.eweek.com/article2/0,4149,1229965,00.asp"&gt;Microsoft Embraces Modeling
(EWeek)&lt;/a&gt;
&lt;/p&gt;
&lt;p&gt;
Neste artigo da EWeek pode ler-se &lt;em&gt;"To fuel its drive into modeling, Microsoft
has been amassing a core of top-level UML and modeling talent, just as the company
has done in XML and Web services, sources said. Over the past year, Microsoft has
hired a series of UML experts, including four who previously worked for Rational:
Jochen Seemann, Wojtek Kozaczynski, Jack Greenfield and Ed Eykholt."&lt;/em&gt; - mas se
isto n&amp;#227;o &amp;#233; s&amp;#243; UML ser&amp;#225; que a Microsoft&amp;nbsp;vai lan&amp;#231;ar aqui
algo divergente do UML?&lt;br&gt;
&lt;/p&gt;
&lt;img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=6c7b77f6-2a11-47ae-ae42-7d5e8e86d312" /&gt;</description>
      <comments>http://canoas.com/blog/CommentView,guid,6c7b77f6-2a11-47ae-ae42-7d5e8e86d312.aspx</comments>
      <category>Patterns</category>
      <category>PDC 2003</category>
      <category>Web Services</category>
    </item>
    <item>
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      <dc:creator />
      <wfw:comment>http://canoas.com/blog/CommentView,guid,7cdd5558-ca17-46aa-a65f-b27ae1a74efd.aspx</wfw:comment>
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        <p>
          <img src="/blog/content/binary/indigo_unify1.PNG" align="right" border="0" />"Indigo"
é nome de código da nova plataforma de Messaging/Remoting e pretende consolidar
.NET Remoting, DOM/COM+/EnterpriseServices, ASP.NET Web Services/WSE e MS MessageQueue.
Predende criar um serviço para construção de aplicações distribuídas
que abstrai desde as comunicação inter-processo até aos web services
entre organizações. Ou seja, passamos a usar um único modelo para implementar
Arquitecturas Orientas a Serviços (SOA). Isto incluí serviços para
transacções, garantia de entrega, segurança numa infra-estrutura altamente
escalável. 
</p>
        <p>
A sessão do Don Box foi um introdução aos Service Oriented Arquitectures,
as suas motivações e principalmente as orientações que devemos
aplicar hoje no desenho dos sistemas distribuídos.
</p>
        <p>
Ontem gostei de ver um exemplo da Merck de aquisição de dados de pacientes
que estão em casa sob efeito de novos medicamentos. Um pocketPC recolhia o Pulso
Cardiaco e consumo de Oxigénio e estava a alimentar em "Real-Time" uma base de
dados central. Mesmo as ferramentes de analise usadas pelos médicos conseguiam
monitorizar em real-time ou recuperar o histórico do paciente rapidamente. O
interessante foi perceber que o real-time era resistente à conectividade simplesmente
porque o serviço era queued. Estes modelos online/offline podem ser feitos hoje
mas não com a simplicidade com que estamos aqui a ver nesta geração
de ferramentas e não tão <a href="/blog/PermaLink.aspx?guid=09029e59-2d0e-45e5-9c4e-10ed5d7991a7">interoperavel</a> como
vai sendo possível fazer com os Web Service.
</p>
        <p>
Também já está online o site MSDN sobre <a href="http://msdn.microsoft.com/Longhorn/understanding/pillars/Indigo/default.aspx">Indigo</a>.
</p>
        <img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=7cdd5558-ca17-46aa-a65f-b27ae1a74efd" />
      </body>
      <title>Indigo: O anúncio</title>
      <guid isPermaLink="false">http://canoas.com/blog/PermaLink,guid,7cdd5558-ca17-46aa-a65f-b27ae1a74efd.aspx</guid>
      <link>http://canoas.com/blog/2003/10/28/Indigo+O+An%c3%bancio.aspx</link>
      <pubDate>Tue, 28 Oct 2003 19:48:54 GMT</pubDate>
      <description>&lt;p&gt;
&lt;img src="/blog/content/binary/indigo_unify1.PNG" align=right border=0&gt;"Indigo" &amp;#233;
nome de c&amp;#243;digo da nova plataforma de Messaging/Remoting e pretende consolidar
.NET Remoting, DOM/COM+/EnterpriseServices, ASP.NET Web Services/WSE e MS MessageQueue.
Predende criar um servi&amp;#231;o para constru&amp;#231;&amp;#227;o de aplica&amp;#231;&amp;#245;es distribu&amp;#237;das
que abstrai desde as comunica&amp;#231;&amp;#227;o inter-processo at&amp;#233; aos web services
entre organiza&amp;#231;&amp;#245;es. Ou seja, passamos a usar um &amp;#250;nico modelo para implementar
Arquitecturas Orientas a Servi&amp;#231;os (SOA). Isto inclu&amp;#237; servi&amp;#231;os para
transac&amp;#231;&amp;#245;es, garantia de entrega, seguran&amp;#231;a numa infra-estrutura altamente
escal&amp;#225;vel. 
&lt;/p&gt;
&lt;p&gt;
A sess&amp;#227;o do Don Box foi um introdu&amp;#231;&amp;#227;o aos Service Oriented Arquitectures,
as suas motiva&amp;#231;&amp;#245;es e principalmente as orienta&amp;#231;&amp;#245;es que devemos
aplicar hoje no desenho dos sistemas distribu&amp;#237;dos.
&lt;/p&gt;
&lt;p&gt;
Ontem gostei de ver um exemplo da Merck de aquisi&amp;#231;&amp;#227;o de dados de pacientes
que est&amp;#227;o em casa sob efeito de novos medicamentos. Um pocketPC recolhia o Pulso
Cardiaco e consumo de Oxig&amp;#233;nio e estava a alimentar em "Real-Time" uma base de
dados central. Mesmo as ferramentes de analise usadas pelos m&amp;#233;dicos conseguiam
monitorizar em real-time ou recuperar o hist&amp;#243;rico do paciente rapidamente. O
interessante foi perceber que o real-time era resistente &amp;#224; conectividade simplesmente
porque o servi&amp;#231;o era queued. Estes modelos online/offline podem ser feitos hoje
mas n&amp;#227;o com a simplicidade com que estamos aqui a ver nesta gera&amp;#231;&amp;#227;o
de ferramentas e n&amp;#227;o t&amp;#227;o &lt;a href="/blog/PermaLink.aspx?guid=09029e59-2d0e-45e5-9c4e-10ed5d7991a7"&gt;interoperavel&lt;/a&gt; como
vai sendo poss&amp;#237;vel fazer com os Web Service.
&lt;/p&gt;
&lt;p&gt;
Tamb&amp;#233;m j&amp;#225; est&amp;#225; online o site MSDN sobre &lt;a href="http://msdn.microsoft.com/Longhorn/understanding/pillars/Indigo/default.aspx"&gt;Indigo&lt;/a&gt;.
&lt;/p&gt;
&lt;img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=7cdd5558-ca17-46aa-a65f-b27ae1a74efd" /&gt;</description>
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      <category>PDC 2003</category>
      <category>Web Services</category>
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      <title>PDC: Primeiras impressões</title>
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      <pubDate>Tue, 28 Oct 2003 01:20:30 GMT</pubDate>
      <description>Umas notas antes de adormecer em pé&lt;img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=e819a9cb-bb0e-4a0a-9ce9-3fd971d05a25"/&gt;</description>
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      <title>Indigo</title>
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      <pubDate>Mon, 27 Oct 2003 09:47:35 GMT</pubDate>
      <description>Está quase a chegar ao momento de anunciar publicamente o projecto "Indigo"&lt;img width="0" height="0" src="http://canoas.com/blog/aggbug.ashx?id=966a815a-6d6a-4e93-ae56-1cc1bc86d3bc"/&gt;</description>
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