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From VGI Knowledge Portal

The VGI Knowledge Portal provides information about the domain of Volunteered Geo-Information (VGI) by presenting its relevant concepts, products and their relationships. The core of the portal is made of Pages, which represent items such as tools, data, people, publications, etc. We consider these items to be relevant for VGI. As the portal is a wiki, you may enter those items, so that they are shared amongst our community. Pages are populated with Attributes. These can be the authors of a publication or they relate to other items, e.g., a publication can relate to a tool, a tool can relate to a method, etc. A special attribute is a Keyword. Keywords relate to every other category in the domain. It aims at allowing free annotations made directly by contributors. You may tag your items with as many Keywords as you find necessary. All Pages are created with Forms, The title (or Name) of the Page serves as its identification throughout the portal, used to create links with other Pages. When an new attribute is created in a Page, its name will appear in Red text in other Pages. Once a Page is created for this Attribute, it will appear Blue. Once it is used in a relationship with another Page it will be part of a network of Linked Pages and appear in the autocomplete list of attributes.

The VGI Knowledge Portal is powered by Semantic Media Wiki (SMW). SMW enables wikis to make their knowledge computer-processable adding semantic annotations to the wiki-text. Semantic Annotations in this portal have been implemented with the use of Semantic Template and Semantic Forms. They define the structure of pages in relation to the category to which a page belongs. Therefore, a set of properties are attached to categories in order to create relations among pages. In this way, it is possible to link pages with specific semantics.


How to edit step by step

Step One

Have a look at the top-categories of the Portal here.

Step Two

To start create or edit pages click here and select the form you want to use. For example, if the page you are adding belongs to the category Tool, you can choose the form Tool.

Do not use commas in the pagename.

When filling the forms take into consideration the data type you are requested to use.

The structure of this portal is designed to relate different pages but it is also possible to add data type as url, text or pages. Notably:

- The definition (of keywords) and review fields are of type text, therefore do not add internal or external links in that fields; it is only for plain text.

- When a field is named as Related to, then the field value is an other page; the same is for keywords and authors. Use commas to separate pages. As a consequence, do not use url in the "Related to", Keywords and Author fields. If you want to link a tool with a Related project, then use the name of the project in the related project field (not an URL). You can also add more projects separated by commas. After you save the page, if the project page does not already exist, you will see a red link. Click on that link and you will be redirected to the form for creating the project page and add there the url in the proper field.

- In the description you can also add internal links to connect with an existing page using square brackets [[PageName]] (see figures below).

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Step Three

For each page you create it is possible to add keywords. Pheraps, the keyword you want to add already exists! So, have a look at the keywords page. It is reachable from the Menu scroll down list; when you are editing you can open it on an other panel of your browser and check if your keyword is already there (copy and paste allowed). Don't forget the comma for separating keywords.

Step Four

SAVE your page!


Additional Information

To modify an existing page search the button "Edit with form" from the Actions list.

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When the Keywords, Related to and Author fields you added will appear red after you save your page (see the image below) it means that the page is not already created. Click on it and save the new page. You will be redirected to the proper form to be filled.


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Contact

vgiknowledgeportal@gmail.com