Styles d’interaction dans les PocketPC: analyses et comparaisons

Styles dinteraction dans les PocketPC: analyses et comparaisonsRoberto Ortelli, Juillet 2003

Roberto Ortelli, juillet 2003

Plan de prsentationBut de ltudeLes 4 styles dinteraction (SI)Question de rechercheMthodologieQuelques rsultatsConclusion / Limites / Suites

Roberto Ortelli, juillet 2003

But de ltudeAnalyser linteraction homme-PPCQuels sont les SI les plus performants?Quelles sont les prfrences des SI pour les novices et les experts?

Roberto Ortelli, juillet 2003

Les styles dinteraction (SI)

Roberto Ortelli, juillet 2003

Reconnaissances des blocs (RB)= Graffiti dans PalmReconnaissance lettre par lettreOrthographe simplifie (caractres dimprimerie majuscule)

Roberto Ortelli, juillet 2003

Reconnaissance des lettres (RL)= Jot dans PalmReconnaissance lettre par lettreReconnaissance de lcriture de lutilisateur (en caractres dimprimerie minuscule)

Roberto Ortelli, juillet 2003

Clavier Virtuel (CV)

Roberto Ortelli, juillet 2003

Transcriber (TR)Reconnaissance de lcritureReconnaissance de squences de mots

Roberto Ortelli, juillet 2003

Mthodologie

Roberto Ortelli, juillet 2003

Question de recherche & variablesLe choix du SI utiliser est guid par plusieurs facteurs: expertise du PPC et la matrise des SI.Nous avons dress 9 hypothsesVI:Expertise (Experts, Novices)SI (RB, RL, CV, TR)VD:ErreursTemps dexcution de la tcheSatisfaction subjective

Roberto Ortelli, juillet 2003

Mthodologie: participantsExperts: 8 hommes (ge moyen 29 ans)Utilisation courante du PPCNovices: 8 hommes (ge moyen 28 ans)Aucune connaissance de lenvironnement PPC ou PDA en gnral

Roberto Ortelli, juillet 2003

Mthodologie: ProcdurePhase I:Experts: formulaire: valuation comptences et exprience avec le PPCNovices: familiarisation avec les 4 SI

Phase II: tches fermesPassation de 4 sries de 4 tches avec un SI diffrentTches: adresse, adresse web, rendez-vous, emailQuestionnaire: soumis aprs chaque srie de tches; valuation de la satisfaction subjective du SI utilis

Roberto Ortelli, juillet 2003

Mthodologie: ProcdurePhase III: tches libresPassation de deux tches libres, les sujets choisissent le SITches: adresse, rendez-vous

Phase IV: entretien semi directifDure maximale: 30 minutesContenu:Feedback du testEvaluation des performancesEvaluation des SI

Roberto Ortelli, juillet 2003

Quelques rsultats

Roberto Ortelli, juillet 2003

Rsultats (1)H1: Plus le niveau dexpertise et haut et plus on a tendance utiliser des SI de haut niveau

Roberto Ortelli, juillet 2003

Grafico1

5210

3210

0132

0213

1er

2me

3me

4me

SI

Nombre de sujets

Utilisation relle des 4SI pour le EXP

all_si

Groupe1T_RB1E_RB1A_RB2T_RB2E_RB2A_RB3T_RB3E_RB3A_RB4T_RB4E_RB4A_RB1T_RL1E_RL1A_RL2T_RL2E_RL2A_RL3T_RL3E_RL3A_RL4T_RL4E_RL4A_RL1T_CV1E_CV1A_CV2T_CV2E_CV2A_CV3T_CV3E_CV3A_CV4T_CV4E_CV4A_CV1T_TR1E_TR1A_TR2T_TR2E_TR2A_TR3T_TR3E_TR3A_TR4T_TR4E_TR4A_TR1T_TL1E_TL1A_TLSI_TL_13T_TL3E_TL3A_TLSI_TL_3

11130.62022.8673117.8671094.86711037.85216.7330026.450149.73324433.7331016.0670021.230117.82047.42045.64429.73320145.69036.26750RB16.800RB

16137.82027.5335122.06730133.0661514811261.414379.4231335.26771951.3342022.7330033.33320181.9334089.6679144.5334243.420568.93339836.06740RB19.610RB

3194.33411937.803109.2661312407.467295153.5331532.64835.06634219163560.46740392024.93300139.267209311043.9335141.12240302.66725949.66618RL39.6611RL

1158.22616221.82266.6121180.93341449.66712227.46456.867130217.72746329.0062014.6670025.73330108.66715057.86740290191.134190356.883329.810CV22.86730CV

5182.733101335.83770.8671012255264294.533121629.8661436.46626208.934213329.9340012.8660014.53300121.4678011460708432.26710200.26715229.53400CV15.66710CV

2153.83029.5333329.210145.06718185.3226543.27355.133123220.13324547.23023.9210034.12320175.12250120.27072.1127538.420412.33443744.21320RB24.200RB

25160.25134.1340337.46720150.53320646.22224.3443239.06730217.2281034.5211018.2330022.22300127.4236070.5335038.3343141.66750203.432331.06700CV21.46700CV

4143.52026.5243326.34211122.32214257.8137231.2235045.282225.133362833.3740024.80025.33300136.1673081.22311041.0675243.33430325.66747232.13310CV23.66700CV

120126.25387.9337063.290281.73326195.66716444.0670155.651301.2494882023.0671025.13310160.46630186.733160140.21314190.53350478.733431394.867110RB28.400CV

130128.0673881.4662882.46716428.33393193.933112046.3340553.46729368355956.0670030.80023.73300313.73310191.067111168.06711172.134120378.833464.86710CV35.73320CV

210104.690928783.26785300.06722681.93317631.6670383.9331315267.267322750.61033.7340036.33310148.230139.3347378.6668423.13400267.267154106.2120RB37.26720TR

22063.9335260.5346432.46711189.86715580.53394139.27117557.46692245.441541.7340030.4670018.410171.73316066.23089.4831900266.86726353.840RB47.06710RB

14094.13361264.1344765.06731259.06783758.13451137.5332542.12246223.4152758.1332038.6670034.1231016630153.66719081.1334427.250254.48558.86746RL36.13320CV

150132.0677482.2335678.273340.26713873.12211735.0670349.52279235.727222849.4670031.1420026.73300173.240121.8679092.8678132.33370287.66718647.230CV37.86710TR

170101.3345285.4224571.1334229816588.533131344.1332561.1331113340.133546863.1223036.81032.66710190.46770167.2142123.66713358.12340402.346754.43350CV31.220CV

18087.2333065.4234057.13320243.0678482.133141249.2333658.62277247.2465447.3340028.5210025.210145.0671099.14560113.9339261.25680366.26728380.680RB32.46700CV

RBRLCVTR

GroupeMoyenneTMoyenneEMoyenneAMoyenneTMoyenneEMoyenneAMoyenneTMoyenneEMoyenneAMoyenneTMoyenneEMoyenneA

11141.5504.2500.25057.6678.500247.2001.5000.00067.0834.2501.000

16155.1176.2500.500131.01729.750472.3332.0000.000186.63313.5002.750

31162.21713.25018.75085.0506.0001365.9172.0000.000120.18111.2502.500

1181.89017.7502.25087.91519.250244.5185.0000.000133.70026.5001.000

51111.10012.25018.50092.4509.0001544.7002.0000.000104.1347.5001.500

2164.4006.2501.000100.94712.250470.0922.5000.000160.76214.7503.000

25170.5846.7502.50081.7039.000450.6001.7500.00088.48411.2501.000

4154.6725.0001.50089.84214.000854.9190.7500.000122.82316.5001.000

120139.76711.7501.000124.13417.500374.1671.7500.000224.05319.5003.500

130180.0833.75013.250140.43412.00023106.0830.2500.000202.51716.7501.500

210144.98411.7504.500116.20015.5001367.2171.2500.000127.1007.5002.750

22086.7006.7503.000130.66819.000465.5844.2500.000110.3679.2501.500

140120.6005.25014.25090.2976.5001274.2311.5000.000129.1009.0002.250

150158.1928.0005.25098.36010.0001270.1361.0000.000133.68410.5001.750

170138.9727.2503.500133.48320.0002580.7643.0000.000187.82319.2503.000

180113.2144.2501.000109.29717.5002061.5310.5000.000160.15012.7501.250

RB

1T_RB1E_RB1A_RB2T_RB2E_RB2A_RB3T_RB3E_RB3A_RB4T_RB4E_RB4A_RBGroupeMoyenneTMoyenneEMoyenneA

1130.62022.8673117.8671094.867110141.550254.250.25

1637.82027.5335122.06730133.066151155.11656.250.5

394.33411937.803109.2661312407.46729511162.2167513.2518.75

158.22616221.82266.6121180.933414181.8897517.752.25

582.733101335.83770.867101225526421111.112.2518.5

253.83029.5333329.210145.067181164.46.251

2560.25134.1340337.46720150.533206170.58356.752.5

443.52026.5243326.34211122.322142154.67251.5

12126.25387.9337063.290281.7332610139.766511.751

13128.0673881.4662882.46716428.3339310180.083253.7513.25

21104.690928783.26785300.0672260144.983511.754.5

2263.9335260.5346432.46711189.867155086.700256.753

1494.13361264.1344765.06731259.0678370120.600255.2514.25

15132.0677482.2335678.273340.2671380158.1917585.25

17101.3345285.4224571.133422981650138.972257.253.5

1887.2333065.4234057.13320243.067840113.2144.251

RL

1T_RL1E_RL1A_RL2T_RL2E_RL2A_RL3T_RL3E_RL3A_RL4T_RL4E_RL4A_RLGroupeMoyenneTMoyenneEMoyenneA

1137.85216.7330026.450149.733244157.66658.51.5

164811261.414379.4231335.2677191131.0167529.753.75

353.5331532.64835.066342191635185.04975613

149.66712227.46456.867130217.727463187.9152519.252.25

594.533121629.8661436.46626208.9342133192.44975914.75

285.3226543.27355.133123220.1332451100.94712.254

2546.22224.3443239.06730217.22810181.7027593.5

457.8137231.2235045.282225.1333628189.84225148

1295.66716444.0670155.651301.24940124.133517.52.5

1393.933112046.3340553.4672936835590140.43351223.25

2181.93317631.6670383.9331315267.26732270116.215.512.75

2280.53394139.27117557.46692245.44150130.6675194

1458.13451137.5332542.12246223.41527090.297256.512.25

1573.12211735.0670349.52279235.7272228098.35951011.75

1788.533131344.1332561.1331113340.13354680133.4832024.75

1882.133141249.2333658.62277247.246540109.29717.519.75

CV

1T_CV1E_CV1A_CV2T_CV2E_CV2A_CV3T_CV3E_CV3A_CV4T_CV4E_CV4A_CVGroupeMoyenneTMoyenneEMoyenneA

1133.7331016.0670021.230117.820147.21.50

1651.3342022.7330033.33320181.93340172.3332520

360.46740392024.93300139.26720165.9167520

129.0062014.6670025.73330108.667150144.5182550

529.9340012.8660014.53300121.46780144.720

247.23023.9210034.12320175.12250170.09152.50

2534.5211018.2330022.22300127.42360150.61.750

433.3740024.80025.33300136.16730154.91850.750

12882023.0671025.13310160.46630074.16651.750

1356.0670030.80023.73300313.733100106.083250.250

2150.61033.7340036.33310148.230067.216751.250

2241.7340030.4670018.410171.733160065.58354.250

1458.1332038.6670034.1231016630074.230751.50

1549.4670031.1420026.73300173.240070.135510

1763.1223036.81032.66710190.46770080.