??sa???? st?? ?p?st? - PowerPoint PPT Presentation

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

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Title: Information Systems Analysis and Design Author: Spyros Kokolakis Last modified by: sak Created Date: 4/8/2005 7:59:19 AM Document presentation format – PowerPoint PPT presentation

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Title: ??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??
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