??sa???? st?? ?p?st?

1
??sa???? st?? ?p?st?µ? t?? ?p?????st?? ?a?
?p????????????sa???? st? ??e?t?????? ?a? ????t?
ep??e??e??

• Sp???? ?????????
• sak_at_aegean.gr
• ??????S????? ??G????
• ????? ???????O? ?????F?????O? ??? ???????O????O?
  S?S?????O?

? ???µ??? 2011-2012
2
??e?t?????? ep??e???µat???t?ta

• G?at? ?a a????? µ?a ??e?t?????? ep??e???s?
• ????p??e?te t?? ???se?? sa? ?a? d???e?ete ??a t??
  ea?t? sa?.
• ??e???eta? µ????te?? ep??d?s? ap? µ?a ??as???
  ep??e???s?.
• ?? ??e???eta? ?a ???????
• Business plan
• ???µat???????µ??? d?a?e???s?
• ??µ??? ?a? ?esµ??? pe??ß?????
• S?et???? te???????e?

3
??e?t?????? ep??e??e??

• ???s? t?? te????????? p????f?????? ?a?
  ep?????????? ??a ep??e???µat????? s??p???
• business-to-business (B2B)
• business-to-consumer (B2C)
• business-to-employee (B2E)
• business-to-government (B2G)
• government-to-business (G2B)
• government-to-government (G2G)
• government-to-citizen (G2C)
• consumer-to-consumer (C2C)
• consumer-to-business (C2B)

4
????t? ep??e??e?? (mBusiness)

• ????t?? ?a? as??µate? ep????????e?
• ??e?t?????? ep??e??e?? gt ????t? ep??e??e??
• m-working
• m-payments, m-commerce
• m-marketing
• m-entertainment

5
?e?????sµ??

• ?e?????sµ???? p????
• ????? p?????? ?p??es??? (eta??e?e? ????t??
  t??ef???a?)
• ?e?????sµ??e? ?p?????st???? d??at?t?te? f???t??
  s?s?e???
• ?sf??e?a
• ?µp?ste?t???t?ta (confidentiality)
• ??a?es?µ?t?ta (availability)
• ??e?a??t?ta (integrity)
• ???e?t???p???s? (authentication)
• ?????µ?? µe ????t?? s?s?e???
• F???t?t?ta ???µ??????e?a d??t???

6
?µp?????? ?st?????? (web sites)

• ? t?p??? d?µ?

7
?µp?????? ?st?????? (web sites)

• ?a??de??µa s???????? a???te?t??????

8
??apt?ss??ta? eµp??????? ?st???????

• ??a?e???s? pe??e??µ????
• ? a??pt??? t?? pe??e??µ???? p??pe? ?a ???eta? µe
  ???a??µ??? t??p?
• ?sf??e?a
• ?p?p???? t?? p??????µ????, f?s??? asf??e?a ?a?
  ??e???? p??sßas??
• ??a?es?µ?t?ta/??t??? se sf??µata
• ?e? µp????µe ?a ap?t?????µe p????? t?? ep???se??
  ?a? t?? ß??ße?
• ????ße?a (accuracy)
• ??e?a??t?ta t?? ß?s?? ded?µ???? (p???ap??
  p??sßas?) ?a? d?a??p? s??des?? µe f????µet??t?
  (browser)
• ???at?t?ta ep??tas?? (scalability)

9
S?et???? te???????e?

• ??a?e???s? pe??e??µ????
• Content Management System (????sµ???)
• ?sf??e?a
• Firewalls, f????e??a ?st??????
• ??a?es?µ?t?ta/??t??? se sf??µata
• Replication (p???ap?? a?t???afa t?? ded?µ????,
  p????? e??p??et?t??)
• ????ße?a (accuracy)
• ??a?e???s? s??a??a??? (transaction processing)
• ???at?t?ta ep??tas?? (scalability)
• Replication
• ?ata??µ? f??t?? (load balancing)
• ???s????? µ??µ? (web caching)

10
???a s??af? ??t?µata

• ???????ss??? pe??e??µe??
• ?ta????? ta?t?t?ta
• ???sßas? ap? d?af??et????? f????µet??t?? ?a?
  ?p?????st??
• ?t?µa µe e?d???? a????e? / ???sßas?µ?t?ta

11
??????s? ?a? s?ed?asµ??

• Se p???? ape????eta?
• G?a p??? s??p? a?apt?sseta?
• ?? pe??e??µe?? ?a ??e?
• S?µßat?t?ta ?a? pe?????sµ??
• S?ed?????µe ??a t?? a??a??....

12
?????s? ?st??????
13
S?????

• ??e?t?????? ?p??e???µat???t?ta
• ??e?t?????? ?a? ????t? ?p??e??e??
• S??????a s?st?µata ep??e???µat???? efa?µ???? st?
  d?ad??t??