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Nur Schall und 
Rauch? 
Wie systematisch formulierte Namen im 
Alltag helfen können ... 
Jan Christian Krause (AKRA GmbH) 
auf der #pyunconfhh 2014
Wozu Namen?
Volkswagen Typ 2 T3 
Quelle: 
http://www.vw-bulli.de/de/modelle/t3-bis-1990/modell-nachricht-detailansicht/article/vom-nutzfahrzeug-zum-pkw-t3-caravelle-und-t3- 
multivan/news-browse/1.html
Volkswagen Typ 2 T3? 
Quelle: 
http://de.wikipedia.org/wiki/Deutz-Fahr_Agrotron Nein!
Volkswagen Typ 2 T3? 
Quelle: 
Eigenes Foto Ja, aber mit Lücken ...
Volkswagen Typ 2 T3? 
Quelle: 
http://www.kaeferblog.com/vw-bus-t3-top-chop ?
Namen erlauben Verifikation. 
== VW Typ 2 T3 == 
Konzept Konkretes
Verben in Operationen (I)
Verben in Operationen (II) 
1. get (74.790) 2. add (6.105) 
3. create (4.929) 4. delete (4.769) 
5. update (4.398) 6. send (3.176) 
7. list (2.658) 8. check (1.944) 
9. remove (1.861) 10. is (1.845) 
11. load (1.762) 12. search (1.742) 
13. run (1.727) 14. find (1.367) 
15. echo (1.146) 16. submit (1.041) 
17. save (1.018) 18. wait (949) 
19. modify (944) 20. do (913) 
21. validate (841) 22. register (836) 
23. insert (728) 24. edit (701) 
25. query (553) 26. retrieve (539) 
27. process (535) 28. change (526) 
29. test (524) 30. describe (500)
Verifikation 
durch Namen 
(von Operationen)
Was fehlt hier?
Typen von Operationen? 
Schema pro Operationstyp?
Typ: Sendende Operation (I) 
Eine sendende Operation informiert ein oder mehrere OBJECTs an einer 
oder mehreren DESTINATIONs über ein Ereignis. Die Benachrichtigung 
geschieht über eine MESSAGE eines bestimmten Typs (E-Mail, Brief, etc.) 
in einem bestimmten FORMAT. Die MESSAGE wird mit einem 
INSTRUMENT verschickt bzw. transportiert. Ein REPORT gibt an, ob die 
MESSAGE erfolgreich abgeschickt werden konnte oder nicht.
Typ: Sendende Operation (II) 
public void sendInvoice(Customer addressee, Order whatIsPaid) { 
// ... 
} 
def sendInvoice(self, addressee, whatIsPaid): 
# ... 
OBJECT Customer 
DESTINATION ? 
MESSAGE ? 
FORMAT ? 
INSTRUMENT ?
Typ: Sendende Operation (III) 
public void sendInvoice(Customer addressee, Order whatIsPaid) { 
// ... 
} 
def sendInvoice(self, addressee, whatIsPaid): 
# ... 
ERROR OBJECT ? 
ERROR DESTINATION ? 
ERROR MESSAGE ? 
ERROR FORMAT ? 
ERROR INSTRUMENT ?
Weitere Operationstypen ... 
Prüfende Operation Schlussfolgernde Operation 
Konvertierende Operation Erzeugende Operation 
Beschreibende Operation Duplizierende Operation 
Verbindende Operation Lesende Operation 
Zusammenführende 
Prototokollierende Operation 
Operation 
Berechnende Operation 
Parsende Operation Deponierende Operation 
Löschende Operation Rücksetzende Operation 
Suchende Operation Initiierende Operation 
Substituierende Operation Traversierende Operation
Unterm Strich ... 
Namen können die Verifikation eines SW-Entwurfes ermöglichen 
Standardisierung / Konventionen für Operationsnamen erforderlich 
Derzeitiger Katalog enthält 20 Operationstypen 
Katalog dokumentiert in meiner Dissertation unter 
http://ediss.sub.uni-hamburg.de/volltexte/2014/7022/
Fragen oder 
Anmerkungen? 
Twitter: @idocit 
Blog: idocit.blogspot.de 
Mail: jan-christian.krause@akra.de 
Skype: jan-christian_krause

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Nur Schall und Rauch?

  • 1. Nur Schall und Rauch? Wie systematisch formulierte Namen im Alltag helfen können ... Jan Christian Krause (AKRA GmbH) auf der #pyunconfhh 2014
  • 3. Volkswagen Typ 2 T3 Quelle: http://www.vw-bulli.de/de/modelle/t3-bis-1990/modell-nachricht-detailansicht/article/vom-nutzfahrzeug-zum-pkw-t3-caravelle-und-t3- multivan/news-browse/1.html
  • 4. Volkswagen Typ 2 T3? Quelle: http://de.wikipedia.org/wiki/Deutz-Fahr_Agrotron Nein!
  • 5. Volkswagen Typ 2 T3? Quelle: Eigenes Foto Ja, aber mit Lücken ...
  • 6. Volkswagen Typ 2 T3? Quelle: http://www.kaeferblog.com/vw-bus-t3-top-chop ?
  • 7. Namen erlauben Verifikation. == VW Typ 2 T3 == Konzept Konkretes
  • 9. Verben in Operationen (II) 1. get (74.790) 2. add (6.105) 3. create (4.929) 4. delete (4.769) 5. update (4.398) 6. send (3.176) 7. list (2.658) 8. check (1.944) 9. remove (1.861) 10. is (1.845) 11. load (1.762) 12. search (1.742) 13. run (1.727) 14. find (1.367) 15. echo (1.146) 16. submit (1.041) 17. save (1.018) 18. wait (949) 19. modify (944) 20. do (913) 21. validate (841) 22. register (836) 23. insert (728) 24. edit (701) 25. query (553) 26. retrieve (539) 27. process (535) 28. change (526) 29. test (524) 30. describe (500)
  • 10. Verifikation durch Namen (von Operationen)
  • 12. Typen von Operationen? Schema pro Operationstyp?
  • 13. Typ: Sendende Operation (I) Eine sendende Operation informiert ein oder mehrere OBJECTs an einer oder mehreren DESTINATIONs über ein Ereignis. Die Benachrichtigung geschieht über eine MESSAGE eines bestimmten Typs (E-Mail, Brief, etc.) in einem bestimmten FORMAT. Die MESSAGE wird mit einem INSTRUMENT verschickt bzw. transportiert. Ein REPORT gibt an, ob die MESSAGE erfolgreich abgeschickt werden konnte oder nicht.
  • 14. Typ: Sendende Operation (II) public void sendInvoice(Customer addressee, Order whatIsPaid) { // ... } def sendInvoice(self, addressee, whatIsPaid): # ... OBJECT Customer DESTINATION ? MESSAGE ? FORMAT ? INSTRUMENT ?
  • 15. Typ: Sendende Operation (III) public void sendInvoice(Customer addressee, Order whatIsPaid) { // ... } def sendInvoice(self, addressee, whatIsPaid): # ... ERROR OBJECT ? ERROR DESTINATION ? ERROR MESSAGE ? ERROR FORMAT ? ERROR INSTRUMENT ?
  • 16. Weitere Operationstypen ... Prüfende Operation Schlussfolgernde Operation Konvertierende Operation Erzeugende Operation Beschreibende Operation Duplizierende Operation Verbindende Operation Lesende Operation Zusammenführende Prototokollierende Operation Operation Berechnende Operation Parsende Operation Deponierende Operation Löschende Operation Rücksetzende Operation Suchende Operation Initiierende Operation Substituierende Operation Traversierende Operation
  • 17. Unterm Strich ... Namen können die Verifikation eines SW-Entwurfes ermöglichen Standardisierung / Konventionen für Operationsnamen erforderlich Derzeitiger Katalog enthält 20 Operationstypen Katalog dokumentiert in meiner Dissertation unter http://ediss.sub.uni-hamburg.de/volltexte/2014/7022/
  • 18. Fragen oder Anmerkungen? Twitter: @idocit Blog: idocit.blogspot.de Mail: jan-christian.krause@akra.de Skype: jan-christian_krause