Created on Oct. 13, 2012, 11:21 a.m. by Hevok & updated on March 21, 2013, 6:41 p.m. by Hevok
The Blog and Wiki, Todo as well as associated News and Tutorials and DEPs,
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Documentation app and several others follow the same pattern:
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Each one contains an data entry which has a Title, a text and tags associated.
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Tags themselves can be data entries or linked to corresponding data entries. Further, there is meta data associated with each entry such as date of creation (created), update (updated). Moreover, images (multiple) may be associated witoh an entry of which the first one will be the main one. A thumbnail view of images must be accessible.
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Another field might declare whether it is drafted or not, but this is not
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necessary. Each entry content (text) needs to be rendered in htmlHTML and have
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automatically assigned hyperlinks and should allow to use multiple markup languages.
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It is therefore proposed to have a single data controlling app which eliminates the redundancy between all these different apps. Either tags or another table (maybe it can be called type or category) declares what type of entry it is. The simplest solution is that tags declare also the type of a data entry, e.g.
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whether it is a news or a tutorial. An immediate implementation of this concept
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was done by using the blog as the data-driving app. The tutorial should
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actually be part of the docs.
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A data unit is a coherent/consistent defined piece of information (like a quark). In such a data unit represents the fundamental constituent of a database. A data unit can be for instance be a single row in a relational database table, while the columns are the attributes of this unit. In other database types a data unit is even more obvious (e.g. document storage or nodes in graph databases). These attributes should have meaningful names and follow a logical convention. Many attributes can be represented by synonyms. For example a name, title or label have very often exactly the same function. Similar text, body, content, description are mostly always the main textual part of a data unit. Data Entries define which attributes are synonymous.
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Data units can be exchanged between databases. Thus, it enables the exchange of information between different databases even with those that define different schema. Therefore, Data unit enables Database Synchronization.
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