Economics of Information Systems: verschil tussen versies

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[[Afbeelding:GuidoDedene.jpg|right|200px|]]
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=Trial Exam=
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:Katholieke Universiteit Leuven, E.T.E.W.
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:Prof. Dr. Guido Dedene
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:4 hours / Open Book
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==Question 1==
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ISI is an old Yankee wholesale supply house which has been in business for more than
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three decades. It is managed by a family (president and other officers) and has
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prospered fairly well without extensive automation.
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The corporate headquarters is in Bridgeport and uses approximately 100 application
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programs (mainly customised DB2 (relational database management system) programs)
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at independent offices in Bridgeport, New Haven and Waterbury. The software is written
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mainly in COBOL and C. Applications are menu driven.
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Furthermore, the following information is known about ISI:
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* $20M/yr gross revenues with 10%yr increase
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* 500.000 data elements representing the inventory
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* 50 quarterly catalogs for special clients (1000 elements with special pricing)
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* 6 on-line EDI-clients, growing at 2/yr for 5 years
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* 10.000 active clients, 100.000 passive clients (records retained for 10 years)
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* 500 active suppliers, 100 passieve suppliers
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* Accounts Receivable, Payroll and Ledger have been outsourced
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* Accounts Payable is an in-house standalone application
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* Inventory system in-house, with daily batch update
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* The IS staff consists of 2 people, additional resources are insourced
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* ISI has 100 employees in total
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* The systems process 10000 transactions per month.
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* The current systems are based on a SUN SOLARIS UNIX infrastructure.
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The management is willing to upgrade the current configuration, as they see clearly the
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possibilities of new technology, including open systems based on LINUX. However, they
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want to recover the additional costs from the business processes.
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''What approach would you recommend in this case, if ISI wants to use a charging
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mechanism for the information processing ?''
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==Question 2==
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Car dealers make increasingly use of the INTERNET to stay in contact with car
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manufacturers. These manufacturers impose in many cases the software which the
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dealers should use to contact them over the INTERNET.
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''Questions :''
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:''a. Why do car manufacturers impose their software on the dealers ?''
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:''b. Indicate how the use of the INTERNET changes the transaction costs for the car dealers ?''
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==Question 3==
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Pfizer Inc. in New York decided to outsource the PC software support to Corporate
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Software Inc in Canton, Massachussets. Under terms of contract, Corporate Software
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will provide day-to-day support for 14000 PCs running Microsoft WINDOWSXP and
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OfficeXP.
 
“We have been spending too much time on installing software and dealing with upgrade
management issues on PCs”, said Russ Baris, director of pharmaceutical systems at
Pfizer. “The pact provides us with a better use of the software on our systems and
allows our staff to focus on the strategic parts of Pfizer Business. It is crazy to pay
someone a lot of money each year to be a systems analist and have them spend their
time answering questions about Office" say” Esther Dyson, one of the directors,
"Supporting PC software users is critical to the mission getting done but not to designing
the mission”.
 
Pfizer is organized under a structure where IS personnel act as systems consultants to
business units, Baris said. Outsourcing software support gives Pfizer a way out when it
comes to resolving technical questions, he added “We’ve experienced tremendous
frustration trying to get any one software vendor to accept responsibility for a problem.
And every company we’ve talked to about client/server processing has experienced the
same frustration”, Baris said. “Since making the switch, user feedback has been
positive, in part because Corporate Software has installed a help desk at its facility.
Pfizer intends to sign up for a CD-ROM software distribution or a Web Based service
being created by Corporate Software.”
 
 
:''a. What do YOU see as the major reasons for outsourcing PC software support in this case ? Motivate your answer and comment on the above statements ?''
:''b. What PC-related I.C.T. functions must Pfizer still keep in-house, even with outsourcing the PC software support function ?''
 
==Question 4==
The COCOMO model gives a production function for software development, which can
be expressed as an expression of the following form:
 
:<math>SIZE = f(LABOR) = a * LABOR^{b}</math>
 
''Suppose this function is generalised into one of the form''
 
:<math>SIZE = a * LABOR^{b} * TOOLS^{c}</math>
 
''What unit(s) of measurement would you use for the “TOOLS” and what properties of the “c”-coefficients would be expected ?''
 
==Question 5==
In a large municipal authority, the treasurer and the IS chief were wholly
convinced of the business case for an extensive implementation of office systems
in the City Council’s departments.
The powers in the land were, however, the chief officers of the departments, and
the Council committees and sub-committees which direct their priorities. The
dilemma is: how could the need for departmental direction and prioritisation of
office systems be reconciled with adequate technical convergence. How could the
council assure itself that the potential of office systems in the varied portfolio of
council services and management approaches, got systematically reviewed ?
 
''How would you organise the definition and selection of the most appropriate infrastructure ? How would you organise the decisions on the functional requirements and priorities amongst the departments ?''
 
=Recente Examens=
==19 juni 2006==
#Ge krijgt nen belachelijk lange case study over outsourcing gone wrong (die ik hier ni gans ga uittypen plus ik heb em ni onthouden). Wat is hier misgegaan? Hoe zou jij het aanpakken?
#Drie bedrijven willen alledrie een centrale printserver. Bedrijven X en Y maken hen een voorstel op voor verschillende configuraties (ze kunnen samenwerken, ala incremental cost method)  Welk aandeel hebben de drie bedrijven (a, b, c) in de configuratie ABC (dus samenwerken)  Toon aan dat dit beter is dan dat BC alleen samengaan. Leg uit hoe je prioriteit kan geven aan bedrijf A.
#Bedrijf is een soort broker voor shippinggegevens. Krijgt ge text over hun aanpak. Geef hier voordelen van (value chain linking, blabla)  Geef de uitdagingen als ze hun handel op internet zouden zetten.
#Ge krijgt een beschrijving van een project in lines of code en wat de belangrijke punten zijn. Geef effort en development time. Geef methode om 15% van de tijd af te doen. Wat is de ROI als men int begin van het project 5 PM (programmer months) erbij steekt
#Ge krijgt nen tekst over een municipal community (wat dat ook mag zijn) waarvan de penningmeester en de IC chief nieuwe kantoorcomputers en CMS willen. Maar het geval is zeer gedecentraliseerd (in departementen enzo) en die departementshoofden zijn de baas. Leg uit hoe je hen kan doen overeenkomen (scoring methods ofzo)  Welke architectuur zou jij gebruiken. (over deze vraag ben ik ni erg zeker want ik snapte ze ni goe) (Eigenlijk is deze laatste gewoon question 5 van het voorbeeldexamen)
 
==8 juni 2007==
#Uitgebreid COCOMO model met TOOLS en EXPERIENCE. Effort = a x Volume^b x Tools^c x Experience^d. Wat betekenen b, c en d ? Hoe kan je dit model staven met de werkelijkheid ? Is dit het best mogelijke model om tools en experience erbij te betrekken ?
#Verzekeringsmaatschappij wil dat zijn salesmensen hun informatie vanaf nu in een CRM systeem invoeren. Ge krijgt een beschrijving van hoe ze het hebben aangepakt en ge moet zeggen hoe gij het had gedaan. Welke metrics kunt ge gebruiken om het systeem te evalueren en waarom willen sales mensen  liever niet delen? Kunt ge ze hiertoe incentives geven ?
#Een groot voedselbedrijf (=> factory mode) wil zijn IT outsourcen, omdat men het gevoel heeft dat de IT afdeling niet goed draait. Ze hanteren een soort kostensysteem dat misschien teveel aanrekent (=> interne profits). Een goed idee ? Waar moet op gelet worden ?
#Twee departementen willen een nieuw DBMS (twee keuzes), ge moet een beslissingsmatrix opstellen en zorgen dat ze de optie nemen die voor het bedrijf in het geheel het beste is.
#...en nog een vraag die ik vergeten ben ...
 
[[Categorie:1li]] [[Categorie:2li]]
[[Categorie:Aoti]]

Versie van 11 jan 2009 22:05

Trial Exam

Katholieke Universiteit Leuven, E.T.E.W.
Prof. Dr. Guido Dedene
4 hours / Open Book

Question 1

ISI is an old Yankee wholesale supply house which has been in business for more than three decades. It is managed by a family (president and other officers) and has prospered fairly well without extensive automation. The corporate headquarters is in Bridgeport and uses approximately 100 application programs (mainly customised DB2 (relational database management system) programs) at independent offices in Bridgeport, New Haven and Waterbury. The software is written mainly in COBOL and C. Applications are menu driven.

Furthermore, the following information is known about ISI:

  • $20M/yr gross revenues with 10%yr increase
  • 500.000 data elements representing the inventory
  • 50 quarterly catalogs for special clients (1000 elements with special pricing)
  • 6 on-line EDI-clients, growing at 2/yr for 5 years
  • 10.000 active clients, 100.000 passive clients (records retained for 10 years)
  • 500 active suppliers, 100 passieve suppliers
  • Accounts Receivable, Payroll and Ledger have been outsourced
  • Accounts Payable is an in-house standalone application
  • Inventory system in-house, with daily batch update
  • The IS staff consists of 2 people, additional resources are insourced
  • ISI has 100 employees in total
  • The systems process 10000 transactions per month.
  • The current systems are based on a SUN SOLARIS UNIX infrastructure.

The management is willing to upgrade the current configuration, as they see clearly the possibilities of new technology, including open systems based on LINUX. However, they want to recover the additional costs from the business processes.

What approach would you recommend in this case, if ISI wants to use a charging mechanism for the information processing ?

Question 2

Car dealers make increasingly use of the INTERNET to stay in contact with car manufacturers. These manufacturers impose in many cases the software which the dealers should use to contact them over the INTERNET.

Questions :

a. Why do car manufacturers impose their software on the dealers ?
b. Indicate how the use of the INTERNET changes the transaction costs for the car dealers ?

Question 3

Pfizer Inc. in New York decided to outsource the PC software support to Corporate Software Inc in Canton, Massachussets. Under terms of contract, Corporate Software will provide day-to-day support for 14000 PCs running Microsoft WINDOWSXP and OfficeXP.

“We have been spending too much time on installing software and dealing with upgrade management issues on PCs”, said Russ Baris, director of pharmaceutical systems at Pfizer. “The pact provides us with a better use of the software on our systems and allows our staff to focus on the strategic parts of Pfizer Business. It is crazy to pay someone a lot of money each year to be a systems analist and have them spend their time answering questions about Office" say” Esther Dyson, one of the directors, "Supporting PC software users is critical to the mission getting done but not to designing the mission”.

Pfizer is organized under a structure where IS personnel act as systems consultants to business units, Baris said. Outsourcing software support gives Pfizer a way out when it comes to resolving technical questions, he added “We’ve experienced tremendous frustration trying to get any one software vendor to accept responsibility for a problem. And every company we’ve talked to about client/server processing has experienced the same frustration”, Baris said. “Since making the switch, user feedback has been positive, in part because Corporate Software has installed a help desk at its facility. Pfizer intends to sign up for a CD-ROM software distribution or a Web Based service being created by Corporate Software.”


a. What do YOU see as the major reasons for outsourcing PC software support in this case ? Motivate your answer and comment on the above statements ?
b. What PC-related I.C.T. functions must Pfizer still keep in-house, even with outsourcing the PC software support function ?

Question 4

The COCOMO model gives a production function for software development, which can be expressed as an expression of the following form:

SIZE=f(LABOR)=a*LABORb

Suppose this function is generalised into one of the form

SIZE=a*LABORb*TOOLSc

What unit(s) of measurement would you use for the “TOOLS” and what properties of the “c”-coefficients would be expected ?

Question 5

In a large municipal authority, the treasurer and the IS chief were wholly convinced of the business case for an extensive implementation of office systems in the City Council’s departments. The powers in the land were, however, the chief officers of the departments, and the Council committees and sub-committees which direct their priorities. The dilemma is: how could the need for departmental direction and prioritisation of office systems be reconciled with adequate technical convergence. How could the council assure itself that the potential of office systems in the varied portfolio of council services and management approaches, got systematically reviewed ?

How would you organise the definition and selection of the most appropriate infrastructure ? How would you organise the decisions on the functional requirements and priorities amongst the departments ?

Recente Examens

19 juni 2006

  1. Ge krijgt nen belachelijk lange case study over outsourcing gone wrong (die ik hier ni gans ga uittypen plus ik heb em ni onthouden). Wat is hier misgegaan? Hoe zou jij het aanpakken?
  2. Drie bedrijven willen alledrie een centrale printserver. Bedrijven X en Y maken hen een voorstel op voor verschillende configuraties (ze kunnen samenwerken, ala incremental cost method) Welk aandeel hebben de drie bedrijven (a, b, c) in de configuratie ABC (dus samenwerken) Toon aan dat dit beter is dan dat BC alleen samengaan. Leg uit hoe je prioriteit kan geven aan bedrijf A.
  3. Bedrijf is een soort broker voor shippinggegevens. Krijgt ge text over hun aanpak. Geef hier voordelen van (value chain linking, blabla) Geef de uitdagingen als ze hun handel op internet zouden zetten.
  4. Ge krijgt een beschrijving van een project in lines of code en wat de belangrijke punten zijn. Geef effort en development time. Geef methode om 15% van de tijd af te doen. Wat is de ROI als men int begin van het project 5 PM (programmer months) erbij steekt
  5. Ge krijgt nen tekst over een municipal community (wat dat ook mag zijn) waarvan de penningmeester en de IC chief nieuwe kantoorcomputers en CMS willen. Maar het geval is zeer gedecentraliseerd (in departementen enzo) en die departementshoofden zijn de baas. Leg uit hoe je hen kan doen overeenkomen (scoring methods ofzo) Welke architectuur zou jij gebruiken. (over deze vraag ben ik ni erg zeker want ik snapte ze ni goe) (Eigenlijk is deze laatste gewoon question 5 van het voorbeeldexamen)

8 juni 2007

  1. Uitgebreid COCOMO model met TOOLS en EXPERIENCE. Effort = a x Volume^b x Tools^c x Experience^d. Wat betekenen b, c en d ? Hoe kan je dit model staven met de werkelijkheid ? Is dit het best mogelijke model om tools en experience erbij te betrekken ?
  2. Verzekeringsmaatschappij wil dat zijn salesmensen hun informatie vanaf nu in een CRM systeem invoeren. Ge krijgt een beschrijving van hoe ze het hebben aangepakt en ge moet zeggen hoe gij het had gedaan. Welke metrics kunt ge gebruiken om het systeem te evalueren en waarom willen sales mensen liever niet delen? Kunt ge ze hiertoe incentives geven ?
  3. Een groot voedselbedrijf (=> factory mode) wil zijn IT outsourcen, omdat men het gevoel heeft dat de IT afdeling niet goed draait. Ze hanteren een soort kostensysteem dat misschien teveel aanrekent (=> interne profits). Een goed idee ? Waar moet op gelet worden ?
  4. Twee departementen willen een nieuw DBMS (twee keuzes), ge moet een beslissingsmatrix opstellen en zorgen dat ze de optie nemen die voor het bedrijf in het geheel het beste is.
  5. ...en nog een vraag die ik vergeten ben ...