Content Maganement with the Delegated Features as Services

As a friend of mine pointed out:  there used to be a server and many terminals, currently we have a bit more sophisticated terminals – PCs – and our big server is the Internet, where the apps are “on the cloud”. Nice analogy, and for me it makes a lot of sense. Are we really coming back to the terminal-server age but in a more advanced, i.e. distributed version?

Anyway I think that every feature in a Web application should be a service. Not a service in a sense of a mashup or SOA, but in a bit different sense.

Let’s take a simple example – Drupal. It’s a content management system. The power of it is that it’s extensible with new modules that are normally contributed by the community. These modules implement different features, such as rate the content, comment, spam filter. One of the nice ones that I really like is made by the Drupal inventor Dries Buytaert, called Mollom. In fact it’s a gluing module for the Mollom service, the service does spam filtering for your site. Specifically, when a person presses the “Save” button, the post first travels to the Mollom service, and then is checked if it’s spam, in case it looks suspicious the user has to fill in a CAPTCHA in order to save the post.

Now consider that all the modules in Drupal had the Mollom nature. That is the module would just be the glue for the service which lives somewhere on the cloud.

A simple content driven site based on Drupal could be quite easily implemented with what’s available out there. Consider a site for video sharing, kind of YouTube but maybe not so generic. At the core is Node – the most primitive content type made of title and body. And now let’s add features as services:

  • Comment the node – Disquss.
  • Control the spam – Mollom.
  • Let users send the feedback about your video sharing service – Zendesk.
  • Rate the content – Outbrain.
  • Share the content – AddThis.
  • Video upload and related features – Kaltura.

What else? Well there is one more piece that I think is very important:

  • Social graph management. There are many services available out there starting with Facebook and finishing with QQ. These services expose APIs so there are also gluing modules for Drupal available. There is one caveat with social graph management. What features one wants to map, is it only friending or also status updates, picture sharing, etc. The purest approach would probably be to have a gluing module in Drupal that only uses authentication and friending features of the social service.

All in all, I strongly believe that paying for a feature as a service is better than paying for (re)implementing and maintenance of that feature. So it’s like SaaS but on a feature level, not the whole application (feature set).

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