A core Course on Modeling

A core Course on ModelingIntroduction to Modeling

0LAB0 0LBB0 0LCB0 [email protected]

[email protected]

S.12

mailto:[email protected]

mailto:[email protected]

define

conceptualize

conclude

execute

formalize

formulatepurpose

identifyentities

chooserelations

obtainvalues

formalizerelations

operatemodel

obtainresult

presentresult

interpretresult

Definition phase: what purpose?

‘how to optimize road illumination’

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define

conceptualize

conclude

execute

formalize

formulatepurpose

identifyentities

chooserelations

obtainvalues

formalizerelations

operatemodel

obtainresult

presentresult

interpretresult

Conceptualization phase: what entities?

http://comm

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lantern roadmooncar treesdrivertraffic

http://comm

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_Hopewell

_Apr-2013.JPG

define

conceptualize

conclude

execute

formalize

formulatepurpose

identifyentities

chooserelations

obtainvalues

formalizerelations

operatemodel

obtainresult

presentresult

interpretresult

has-a,

part-of

Conceptualization phase: what properties?

lantern− height− powerroad− width− reflectivitycar− seat height− speed

driver− visual capabilitiestraffic− density


driver− visual capabilitiestraffic− densityauthority− expenses

define

conceptualize

conclude

execute

formalize

formulatepurpose

identifyentities

chooserelations

obtainvalues

formalizerelations

operatemodel

obtainresult

presentresult

interpretresult

other than has-a, part-of

Conceptualization phase: what relations?

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height

drivervisual capabilities

1authority

expenses

illuminate(lanternn, road1)

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


n

1

1authority

expenses

illuminate


operatedBy(car, driver)lantern

height

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


operated by1

1n

1

1authority

expenses

illuminate


operatedBy(car, driver)

consistsOf(traffic, carn)lantern

height

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


consists of

operated by

1

1

1n

1

1

n

authorityexpenses

illuminate



consistsOf(traffic, carn)

ridesOn(traffic, road)

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

1

1

1n

1

1

n

11

authorityexpenses

illuminate





sees(driver,lanternn, road)

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

sees

1

1

1n

1

n

1

1

n

11

authorityexpenses 1

illuminate






pays(authority, lanternn)

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

sees

1

1

1n

1

n

1

1

n

11

authorityexpenses

pays

n

11

illuminate







adjacent(lantern, lantern2)

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

sees

adjacent

1

1

1

1n

1

n

1

1

2

n

11

authorityexpenses

pays

n

11

illuminate








lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

sees

adjacent

1

1

1

1n

1

n

1

1

2

n

11

authorityexpenses

pays

n

11

illuminate

Why are the arities of the ‘adjacent’ relation 1 and 2, respectively?

When is this true for all lanterns?

QUIZ








locatedOn(lanternn,road)

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

sees

adjacent

1

1

1

1n

1

n

1

1

2

n

11

authorityexpenses

pays

n

11

illuminatelocated on

1

lanternheight

power

roadwidth

surface reflectance

trafficdensity

carspeed

height


rides on

consists of

operated by

sees

adjacent

1

1

1

1n

1

n

1

1

2

n

11

authorityexpenses

pays

n

11

illuminatelocated on

1

define

conceptualize

conclude

execute

formalize

formulatepurpose

identifyentities

chooserelations

obtainvalues

formalizerelations

operatemodel

obtainresult

presentresult

interpretresult

Formalization phase: what value sets?



Free decisions

:{5.0 … 25.0} m

Alternatives for what-if analysis lantern

− height− powerroad− width− reflectivitycar− seat height− speed


: {100, 2000} W:{5.0 … 25.0} m

Constants to be determinedlantern



: {14.40} m

: {100, 2000} W:{5.0 … 25.0} m

Require additional model or experimentlantern


driver− visual capabilitiestraffic− densityauthority− expenses : rho

: {14.40} m

: {100, 2000} W:{5.0 … 25.0} m

Range for validity of the modellantern



: {1…3} m

: rho : {14.40} m

: {100, 2000} W:{5.0 … 25.0} m

Range of applicability of the model



: {20 …180} km/h : {1…3} m

: rho : {14.40} m

: {100, 2000} W:{5.0 … 25.0} m

Concept in its own rightlantern



: driverView

: {1…3} m : {20 …180} km/h

: rho : {14.40} m

: {100, 2000} W:{5.0 … 25.0} m

Aggregation (compression)lantern− height− powerroad− width− reflectivitycar− seat height− speed


: {0…30} cars/minute

: driverView

: {1…3} m : {20 …180} km/h

: rho : {14.40} m

: {100, 2000} W:{5.0 … 25.0} m

: {1…3} m

: {0…30} cars/minute

: as little as possible

: {20 …180} km/h

: driverView

Purpose, goal or objectivelantern



:{5.0 … 25.0} m : {100, 2000} W

: {14.40} m : rho

A core Course on Modeling

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