???????G?? ??????S?S ????????S???O? ???????S?O? www.di.uoa.gr/~pms541

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???????G?? ??????S?S ????????S???O?
???????S?O?www.di.uoa.gr/pms541

• M??t??a ?p??e???s?a??? ??ad??as???
• M???? B

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???t??a ???sa?at???sµ??a se ??ast????t?te?Activi
ty-Oriented Models
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???t??a ???sa?at???sµ??a se ??ast????t?te?

• T? µ??t??? IDEF0
• T? µ??t??? IDEF3
• T? µ??t??? EPC

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The IDEF3 process description capture method

• ???s?µ?p??e?ta? ??a ?a s????ße? s?µpe??f??????
  (behavioural) pt???? e??? ?p?????t?? ? e???
  p??te???µ???? s?st?µat??
• ?a???e? ??a µ??a??sµ? s??????? ?a? te?µ????s??
  t?? d?ad??as???

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The IDEF3 process description capture method
(cont.)

• S???e?t???e? ??e? t?? p??s?????? p????f???e?,
  µa?? µe s??se?? p??te?a??t?ta? ?a? a?t??t?ta? p??
  s??d???ta? µe t?? ep??e???µat???? d?ad??as?e?.
• ??t? ???eta? se µ?a µ??f? p??s?t? st???
  eµpe??????µ??e? t?? pe?????? t?? efa?µ???? µe t??
  pa???? µ?a? d?µ?µ???? µe??d?? p?? ep?t??pe? t??
  ??f?as? t?? ???s?? ??a t? p?? ?e?t????e? µ?a
  d?ad??as?a.
• ?atas?e???e? d?µ?µ??e? pe????af?? (Se a?t??es? µe
  t?? ???sse? e??µ???s??, ?? ?p??e? ?atas?e??????
  p??ß?ep?µe?a µa??µat??? µ??t??a). ??t?? ??
  pe????af?? d????? t?? p????f???a ??a t? t?
  a???ß?? ???e? (? ?a ???e?) ??a s?st?µa. ?p?s??,
  pa?????? st?? ???a??sµ? µ?? ??f?as? t??
  d?af??et???? ap??e?? t?? ???st?? t?? s?st?µat??.

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The IDEF3 process description capture method
(cont.)

• ??? t??p?? µ??te??p???s?? e??a?
• ?? Process Flow Description (PFD), t? ?p???
  pe?????fe? p?? ?e?t??????? ta p???µata st??
  ???a??sµ?.
• ?? Object State Transition Description (OSTD), t?
  ?p??? ???e? pe?????? t?? ep?t?ep?µe??? µetaß?se??
  e??? a?t??e?µ???? se µ?a s???e???µ??? d?ad??as?a.
• ?? PFD pa???e? µ?a d?ad??as??-?e?t???? ?p???, ?a?
  t? OSTD pa???e? µeta?? ????? ?a? ???t???a
  e?s?d??/e??d?? st??/ap? t?? d??f??e? ?atast?se??
• ?? ?e?µe?? ?a? d?a???µµata p?? p????pt???
  ap?te???? a?t? p?? ???µ??eta? pe????af? se
  a?t??es? µe t? ap?t??esµa ????? IDEF µ??t????, ta
  ?p??a pa?????? ??a µ??t???.

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The IDEF3 process description capture
methodProcess Schematics

• ?? s?µß???sµ?? ??? t? d?ad??as?a ap?te???? ta p??
  ???st? ?a? e????? d?aded?µ??a st???e?a t?? IDEF3.
• ?a?????? ??a µ??a??sµ? e???????p???s?? t??
  d?ad??as??-?e?t????? pe????af?? e??? se?a????.
• ?a ??af??? st???e?a p?? ap?te???? t???
  s?µß???sµ??? ??? t? d?ad??as?a pe???aµß????? ta
  e??? Unit of Behaviour (UOB) boxes, precedence
  links (s??d?se?? p??te?a??t?ta?), junctions
  (d?asta???se??), referents (a?af????), ?a? notes
  (s?µe??se??). ?? a?af???? ?a? ?? s?µe??se?? e??a?
  s????? st???e?a sta s??µata t?? a?t??e?µe??? ?a?
  t?? d?ad??as???.

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The IDEF3 process description capture
methodProcess Schematics (cont.)

• ??a UOB pe?????fe? ??a? t?p? ?at?stas?? ??a
  st??µ??t?p? e??? UOB e??a? ap?? ??a occurrence
  t?? UOB.
• ??a pe????af? d?ad??as?a? a?apa??st? t?? t?p? t??
  ?atast?se?? (d?ad??as?e?, ?e?t?????e?, ?t?.) p??
  µp????? ?a s?µß??? st? s?st?µa ?a? t??? ????????
  ?a? p??s??????? pe?????sµ??? p?? t??? e??????.
• ?? s??d?se?? (Links) e?????? ta UOB ???t?? ??a ?a
  s??µat?s??? a?apa?ast?se?? ap? d??aµ????
  d?ad??as?e?. ??t?? ???s?µ?p?????ta? a????? ??a ?a
  d???s??? t?? ????e? s??se?? a??µesa sta UOBs,
  ?p?? p??s?????, ??????, f?s??? ?a? s?µßat???.

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The IDEF3 process description capture
methodProcess Schematics (cont.)

• ?? d?a??ad?se?? (junctions) pa?????? ??a
  µ??a??sµ? ???sµ?? t?? ??????? st? d?a???d?s? t??
  d?ad??as?a?. ?p?p??s?eta, ?? d?a??ad?se??
  ap??p????? t?? s?????? t?? ???????? ?a?
  a???????a??? s??se?? a??µesa se p???ap???
  d?ad??ast???? d?ad??µ??.
• ?? a?af???? (referents) ???s?µ?p?????ta? ??a ?a
  ?????? ?a??te?a ?ata???t?, ?a pa?????? ep?p????
  p????f???e? ?a? ?a ap??p???s??? t?? ?atas?e??
  s??µat???? a?apa?ast?se?? ??? t?? d?ad??as?e? ?a?
  ta a?t??e?µe?a.

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The IDEF3 process description capture
methodProcess Schematics (cont.)

• ?? IDEF3 ?p?st????e? t?? ap?s???es? e??? UOB se
  ?p???d?p?te ep?ped? ?ept?µ??e?a? µe d??f?????
  t??p???, ?ste ?a a?t?µet?p?se? t?? p???p????t?ta.
  
• ?at? s???pe?a ???e? ef??t? t?? µ??te??p???s? t??
  ?d?a? d?ad??as?a? ap? d?af??et???? ?pt????
  ????e?.
• ??t? ? d??at?t?ta e??a? ep?s?? ???s?µ? se
  pe??pt?se?? p?? µ?a ded?µ??? d?ad??as?a
  eµp???eta? se p???ap???? ?e?t?????????
  ???a??sµ???.

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IDEF3 and IDEF0

• ? IDEF3 µ???d?? e?s?µat??eta? p??? e????a µe t??
  IDEF0.
• ? IDEF0 µ???d?? µp??e? ?a ???s?µ?p????e? ??a ?a
  ?atas?e??se? ep??e???s?a??? d?ad??as?e? ??????
  ep?p?d?? ?a? ?a µe??e? µa???? ap? t? ?????sµ?,
  t?? a???????e? ?a? t?? ?????? ap?f?se??.
• ? IDEF3 µ???d?? pa???e? t?? ????a ?d?a t?? IDEF0,
  t?? s?µp?????e? µe t? p?a?µat??? ???s? t??
  ??t???? µ?a? d?ad??as?a? ??a t?? t??p? p??
  ?e?t????e? ?a? pa???e? a???ß?? d?ad??ast???
  se????a. ??t? ta se????a µp????? ?a
  ???s?µ?p??????? ??a ?a µe?et?s??? se ß???? t??
  d?ad??as?a. ??a?t?a? t?? t?p???? s?µas??????a?
  ?a? t?? s??ta??? t?? µe??d??, ta pa?a??µe?a
  se????a µp????? ?a t??f?d?t?s??? ?µesa se????a
  p??s?µ???s??.

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IDEF3 S?µpe??sµata

• ? IDEF3 µ???d?? s?ed??st??e, ?ste ?a e??a?
  e????????t? ?a? e????st? ap? ?t?µa p?? ?????
  µ???? ? µ?de???? eµpe???a se d?µ?µ??e? te??????.
• ? s?ed?ast?? µp??e? e????a ?a µ??e? ?a
  ???s?µ?p??e? t? µe??d?? ??? ?a d?µ?????e?
  pe????af?? d?af??et???? se?a???? ??a µ?a
  d?ad??as?a
• ?p? t?? ???? µe???, ?? pe????af?? ?? ?p??e? ?????
  ?atas?e?aste? ?????ta? ???s? t?? µe??d?? de?
  e??a? safe?? ??a t??? s?µµet????te? ?a? ??
  ap?t??esµa de? ?????? ef??t? t?? ep????????a
  a??µesa t???.

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IDEF3 S?µpe??sµata

• ?e??ss?te?e? p????f???e? ??a ta IDEF µ??t??a ?a?
  t?? ???????e?a µe??d?? µp??e?te ?a ß?e?te st??
  d?e????s?
• www.idef.com

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Activity-Oriented Models

• The IDEF0 Model
• The IDEF3 Model
• The EPC Model

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T? µ??t??? EPC (Event-Driven Process Chain
Model)

• ?? e??a?
• ??a p????µ??? µ??f? d?a??aµµ?t?? ????.
• ???a? ??a? e????? ???st?? ?a? ???s?µ?p????µe???
  s?µß???sµ?? ??a t?? pe????af? t?? ep??e???s?a???
  d?ad??as???.

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T? µ??t??? EPC ??? ?atas?e??st??e (1/2)

• ? a???te?t????? t?? ????????µ???? s?st?µ?t??
  p????f????? Scheer ? SAP ?????e? t? s???????
  ??? e??? ???a??sµ?? se t?sse??? d?af??et????
  ??e?? ??? ded?µ????, ??? ?e?t?????a?, ???
  ??????s??, ?a? ??? d?ad??as?a?.
• ? ??? d?ad??as?a? pe?????fe? t? d??aµ??? e???
  ???a??sµ?? ???s?µ?p????ta? t?? p????f???e? ap?
  t?? stat???? ??e?? ?a? ?at? s???pe?a e?s?µat??e?
  µ??? t?? ????? t???? ??e??.

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T? µ??t??? EPC ??? ?atas?e??st??e (2/2)

• ?? EPC a?apt?????e p???e?µ???? ?a ape?????st???
  ?? ???a??t????, ?e?t????????, ded?µe??st?afe??
  ?a? d??aµ???? pt???? st?? ??? d?ad??as?a?.
• ?? EPC ???s?µ?p??e?ta? ap? t? µ??t??? a?af????
  SAP R3 ??a ?a pe??????e? ??e? t?? ep??e???s?a???
  d?ad??as?e? p?? ?p?st??????ta? ap? t? R3 System
  t?? SAP.

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T? µ??t??? EPC G?af???? ??t?t?te? (1/2)
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T? µ??t??? EPCG?af???? ??t?t?te? (2/2)
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T? µ??t??? EPC ?e???? ?e???e?t?µata

• ? a?????? st???? (??a t? ap?? te?µ????s? t??
  ep??e???s?a??? d?ad??as?a?) ??e? µe????
  µe???e?t?µata
• ?e?pe? ? t?p??? s??ta?? ?a? ? ?a?? ???sµ???
  s?µas??????a, ?? ?p??e? e??a? apa?a?t?ta st???e?a
  ??a t?? e?t??es? ?a? t?? p??s?µ???s? µ??t????.
• ?e? pa???e? t?? d??at?t?ta ?ept?µe???? ???sµ??
  t?? ???? ded?µ????, t?? s??????? t?? ???? e??????
  ?a? t?? ?e?t??????? e?e??e??? µ?a? ep??e???s??.