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Trond Pettersen on Web Development and Topic Maps

Tag: software

Web Application Development with Ontopia – 2. Creating the Database

Intro

This blog post is part of a series on Web Application Development with Ontopia.

  1. Part 1: Installation & Requirements
  2. Part 2: Creating the Database
  3. Part 3: Creating the JSPs

In part 1, we looked at how to set up Ontopia. We also described the application that we intend to build (a blog) and what we need to develop in order to achieve our goal.

This time we’ll look at how to set up the “database schema” and create new blog posts by using Ontopia’s web interface. The resulting topic map can be browsed here.

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Web Application Development with Ontopia – 1. Installation & Requirements

Introduction

Ontopia is an Open Source application that lets you create, manipulate and navigate information represented in topic maps. It’s also a toolbox for building all sorts of applications. Among the advantages of topic maps driven applications are enhanced navigation and search capabilities.

Ever since Ontopia went Open Source earlier this year, I’ve wanted to give an example of how easy it is to build a web application on top of it.

Through the next couple of blog posts, I’ll try to show exactly how easy this is – and I promise to leave out the unnecessary talk (wont discuss Topic Maps, for instance).

First I’ll “reveal” how to set up and start Ontopia. As this requires very little typing on my part, I’ll quickly move on to discuss what our goal is. Then we’ll have a look at the required data model, before pointing out the kinds of views that our application needs to support — and how to lay this out. Afterwards, we create the limited amount of code needed to get everything up and running. Last, we deploy.

All code will be available for download :)
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