Emily owns this blog which is supposedly Maxinne's.
This blog is also supposedly for schoolwork. Well you know what. That is a load of sheep poo because, yeah, no.
Sorry Sir. (:

Different types of databases - manual, flat file, relational & hypermedia
Page 44 in textbook!!!

Manual - paper databases, best when databases are used for personal use

• Most large scale businesses wouldn't use this method, due to diffculty to update information

Flat file - one table databases; useful to mostly small businesses (single asian stores?)

• Use in a business for personal records; relative small list [can be bigger than manual]. More possibility for redundant data, the more company personel the more redundant information arises.

Relational - multi-table databases; useful to large businesses (coles, woolsworths etc.)

• Best for large scale business: can store large amounts of data in a more organised manner
• Doesn't always have online access, sometimes can only be accessed through the office

Hypermedia - internet websites; modern version of paper based databases

• Easy access to products - more searchable
• Have more information compared to manual databases
• Easier to update; rather than having to reprint catalogues
• Least private compared to the other databases - expanding the audience to worldwide. Easier to access information, stealing data is easier to be done. Information that should remain private, needs to be secured in some manner.
• Security issues:
  - Passwords are highly needed - access to information is restricted.
  - Encryption may be used to further ensure security of data transferal.
  - Level of access may be used; boss would have access to all information regarding the work, normal employee may only have access to their own personal records/whatever data is needed for the job.

Read pages 46-49

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Encryption - the activity of converting data or information into code.

Labels: class work, notes