ApresentaçãodoCursodeEngenhariadeSo5wareII

LeonardoGrestaPaulinoMurtaleomurta@ic.uff.br

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Apresentações•  Quemsoueu?

– LeonardoMurta– h>p://www.ic.uff.br/~leomurta

•  Quemsãovocês?– Nome?– Estágio?ProjetodeAplicação?IniciaçãoCienMfica?– OqueachoudeEngenhariadeSoRwareI?– ExpectaTvasparaEngenhariadeSoRwareII?

Leonardo Murta Apresentação do Curso 2

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Relembrando,oqueéEngenhariadeSoRware?

“EngenhariadeSoRwareéaaplicaçãodeumaabordagemsistemá:ca,disciplinadaequan:ficávelaodesenvolvimento,operaçãoemanutençãodesoRware”

IEEEStd610.12(1990)

Leonardo Murta Apresentação do Curso 3

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Maseujáseimodelareprogramar!

•  PorqueprecisodeEngenhariadeSo5wareII?– ModelareprogramarsãoparteimportantedoprocessodeEngenhariadeSoRware,masnãosãotudo!

•  Precisamostambémsaber...–  comoesTmarumprojeto(tamanho,custo,cronograma),–  comomonitoraroandamentodeumprojeto,–  comotestarosoRware,–  comocontrolaraevoluçãodosoRware,–  etc.

Leonardo Murta Apresentação do Curso 4

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Programasdefaculdade•  Requisitosestáveisebemdefinidos•  Escopopequeno(1a10KLOCS)•  Prazosrazoáveis•  Equipespequenas•  Mãodeobragratuita•  Nãoentraemprodução•  Nãotemusuário•  Nãoprecisademanutenção

Leonardo Murta Apresentação do Curso 5

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Programasdo“mundoreal”•  FazersoRwareno“mundoreal”deveconsiderarfatorescomo:– Escopo– Custo– Prazo– Qualidade

•  EmfunçãodotamanhodosoRware,essesfatoressetornamdifceisdegaranTr!

Leonardo Murta Apresentação do Curso 6

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Cenário1:AgendaPessoal

•  ObjeTvo– Guardaronomeeoaniversáriodeaté50pessoas

•  Quantocustaparafazer?•  Quantotempovailevarparaficarpronto?

•  Qualaconsequêncianocasodedefeito?

Leonardo Murta Apresentação do Curso 7

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Cenário2:Boeing777

•  ObjeTvo– ControlartodoohardwaredoBoeing777

•  Quantocustaparafazer?•  Quantotempovailevarparaficarpronto?

•  Qualaconsequêncianocasodedefeito?

Leonardo Murta Apresentação do Curso 8

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Cenário2:Boeing777

•  Tamanho–  Maisde4milhõesdelinhasdecódigo–  Linguagemdominante(>99%):Ada

•  Documentação–  De100a10.000páginasporsub-sistema–  Totalde79sub-sistemasintegrados

•  Duração–  4,5anosdedesenvolvimento

•  AmplauTlizaçãodeEngenhariadeSoRware•  Emoperaçãodesde1995

–  Zeroacidentesgravesaté2006

Leonardo Murta Apresentação do Curso 9

http://www.stsc.hill.af.mil/crosstalk/1996/01/Boein777.asp http://www.boeing.com/news/techissues/pdf/statsum.pdf

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MasfazersoRwarenãoéarte?•  Partearte,parteengenharia...

– Seocantor/ator/pintorerrar,aaudiênciaficachateada

– Seoengenheirocivilerraroprédiopodecair– Seomédicoerraropacientepodemorrer

•  SeodesenvolvedordesoRwareerrar,oquepodeacontecer?

Leonardo Murta Apresentação do Curso 10

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Casoreal1:AeroportodeDenver•  SistemadedespachodebagagemdoaeroportodeDenver

•  Problema:–  Osistemanuncafuncionouadequadamente

•  Causa:–  Arquiteturaextremamentecomplexa–  Mudançaconstantenosrequisitos–  ErrosdeesTmaTvadecustoeprazo–  Desprezoaosconselhosdeespecialistas–  Intolerânciaafalhas

•  Consequências–  Entregadealgomuitomenordoqueoplanejado,quefoidesaTvado10anosdepois–  Atrasode16mesesparaentregaroaeroporto–  PrejuízodeUS$560milhõesecustomensaldemanutençãodeUS$1milhão

Leonardo Murta Apresentação do Curso 11

http://calleam.com/WTPF/?page_id=2086

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Casoreal2:Therac-25

•  Máquinaderadioterapiacontroladaporcomputador

•  Problema:–  DosesindevidasderadiaçãoemiTdas

•  Causa:–  Interfacecomusuárioinapropriada–  Documentaçãodeficiente–  SoRwarereuTlizadosemseradaptadoparaonovohardware–  SoRwaredesensoresdefalhacomdefeito

•  Consequências–  Aomenos5mortesentre1985e1987

Leonardo Murta Apresentação do Curso 12

http://sunnyday.mit.edu/papers/therac.pdf

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Casoreal3:Ariane5

•  Foguetelançadordesatélites

•  Problema:–  Ofogueteseauto-destruiu40segundosapósolançamento

•  Causa:–  SoRwarereuTlizadosemseradaptadoparaonovohardware–  AusênciadetestesdestesoRwareemsolo–  Defeitoapresentadoemvôo

•  Consequências–  PrejuízodemaisdeUS$370milhões

Leonardo Murta Apresentação do Curso 13

Dowson, Mark. 1997. The Ariane 5 software failure. SIGSOFT Softw. Eng. Notes 22, no. 2.

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MoTvaçãoextraparaestudar?•  DiversosconcursoseoportunidadesdeempregoexigemconhecimentodeEngenhariadeSoRware

•  Algunsexemplos:

Leonardo Murta Apresentação do Curso 14

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Leonardo Murta Apresentação do Curso 15

Comoseráocurso?

SóosMétodosClássicosprestam!

SóosMétodosÁgeisprestam!

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Comoseráocurso?•  VeremossempreconceitotécnicasclássicaseágeisdeEngenhariadeSoRware

•  UTlizaremosoqueconsiderarmosmelhorparacadasituação

•  Mas...oprocessobasequeuTlizaremosseráiteraTvo,incrementaleágil

Leonardo Murta Apresentação do Curso 16

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Escopodocurso

Leonardo Murta Apresentação do Curso 17

GerênciadeConfiguração

GaranTadaQualidade

Verificação,ValidaçãoeTestes

PlanejamentodeProjetos

GerênciadeRiscos

MonitoramentoeControle

MediçãoeAnálise

LevantamentodeRequisitos Modelagem

Arquitetura ReuTlização

MelhoriadeProcessos

Atividades Gerenciais

Atividades de Análise e

Projeto

Atividades de Apoio

Projeto

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Avaliação

Leonardo Murta Apresentação do Curso 18

Média = 2×Prova1 + 2×Prova2 +Trabalho5

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Avaliação•  APROVADO

Presença≥75%E

Média≥6

•  VERIFICAÇÃOSUPLEMENTARPresença≥75%

E4≤Média<6

SeráaprovadonaVSseTrarnotamaiorouiguala6

•  REPROVADOPresença<75%

OUMédia<4

Leonardo Murta Apresentação do Curso 19

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Trabalho•  FazerumjogodeXadrezondesejapossíveljogarcontraocomputador,usandoastécnicasestudadasduranteocurso.

•  Seenxerguemcomoumapequenaso-warehouse– Grupode5parTcipantes

•  Seráavaliadotantooprodutoquantocomoesseprodutofoidesenvolvido(processosetécnicasaplicados)

Leonardo Murta Apresentação do Curso 20

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Trabalho•  Trêsapresentaçõesserão

feitasduranteocurso•  1ªapresentaçãoeentrega

–  Escopodoproduto–  Escopodoprojeto–  EsTmaTvasdeesforçoecusto–  Orçamento–  Cronograma–  Análisederiscos–  Monitoramentoecontrole–  Versãoparcialdoproduto

•  2ªapresentaçãoeentrega–  Ferramentadecontrolede

versõesedecontroledemodificações

–  Estratégiaderamificação–  Conteúdodorepositório–  Monitoramentoecontrole–  Versãoparcialdoproduto

•  3ªapresentaçãoeentrega–  Testesdeunidade,integração,

sistemaeaceitação–  Casosdetesteeresultadosda

suaexecução–  Monitoramentoecontrole–  Versãofinaldoproduto

Leonardo Murta Apresentação do Curso 21

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Bibliografiadocurso

Leonardo Murta Apresentação do Curso 22

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Páginadocurso

Leonardo Murta Apresentação do Curso 23

Importante: cadastrem-se no Grupo do Facebook informado no site!

http://www.ic.uff.br/~leomurta (no final da página tem o cronograma, com datas e slides)

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FairPlay!•  Nãocolaroudarcolaem

provas•  Nãoplagiarotrabalho•  Nãotrapacearnasleiturase

listasdeexercício•  Nãosobrecarregaros

colegasdogrupo•  Nãoassinarpresençapor

colegas•  Darcréditoapropriado

quandousartrabalhosdeterceiros

Leonardo Murta Apresentação do Curso 24

http://www.claybennett.com/pages/ethics.html

ApresentaçãodoCursodeEngenhariadeSo5wareII

LeonardoGrestaPaulinoMurtaleomurta@ic.uff.br