Ja'idoji don zabar GIS / CAD solutions

Yau yau ita ce ranar da na rubuta don nunawa a cikin tsarin mulkin mallaka na Bolivia. An tsara batun a kan yadda za a zabi na'ura mai kwakwalwa don bunkasa ci gaba.

Wannan shi ne hoton da na yi amfani da ita, kuma na mayar da hankali ga nazarin abubuwan da muke fatan aiwatar da wannan bayani.

Tambayar ita ce idan kana so ka zaɓi kayan aiki mai sauki don kamawar bayanai dole ne ka yi la'akari da abubuwan da basu da wani abu da za su iya yin amfani da su kawai, amma dai abin da za a iya tallafawa kamar yadda masu amfani ke buƙata. suna samun damar shi daga matakan daban da yawan masu amfani waɗanda zasu buƙaci lasisi.

Daga cikin wasu sharuddan da muka yi la'akari da su, kuma nauyin nauyinsa na iya bambanta dangane da yanayin ƙasa ko ikonsa, wasu za a iya la'akari da su:

• Interaperability
• Ka'idodin OGC
• Koyon ilmantarwa
• Gudun sauri. Yawan masu amfani
• Ci gaban zamani
• Samun shirye-shirye na shirin (API)
• Kudin cikakken

Sa'an nan kuma mun rarraba mahallin mahallin zuwa akalla matakai shida kuma mun auna matakin muhimmancin abubuwan da suka gabata a lokuta daban-daban. Kowace daga cikin matakai za a iya zaba a jerin musamman siffofin da cewa masu amfani ko kwararru ba da shawara da kuma wadannan suna ba nauyi domin tantance kamanta amfani ko rashin amfani daban-daban mafita:

1 Tsarin ginin

Wannan m ana sa ran zama tasiri da kuma m mafita ga high-matakin samar da filin masu gyara da suka zo, leka, tsabtace topology, Hadakar databases da kuma hulɗa tare da siffofi ko taswirar sabis.

2 Tsarin mulki

A cikin wannan an dauke shi, cewa za'a samar da bayanan da aka samar a matsayin ma'auni kamar yadda za a karɓa a cikin wani database ko mai sarrafa fayil din. Abubuwan da suka shafi tsarin ci gaba da samfurin API suna da matukar muhimmanci. Kuma ba shakka, mafita an nemi a wannan matakin domin database management ana sa ran zama mafi kyau musaya, za a iya samun mai kyau yi domin multiuser muhallin da ikon adana biyu lissafi da kuma tabular data kamar yadda raster fihirisa.

4 Tsarin MulkiA wannan matakin shi yana dauke da cewa ginin da mafita data ya kasance inganta yiwuwa OGC matsayin da sabis kayan aikin data da matakin na gyare-gyare don haka da cewa duka biyu za ku bauta data da kuma duba artistically m.

5 Tsarin kulawaWannan shi ne karo na biyu matakin na yi, ana sa ran cewa kayan aikin da zaɓi don siffanta su da damar yin amfani versioned kiyayewa da sakamakon, tarihi ajiya canje-canje da kuma sake, sauƙi daidai yi. Idan wani zaɓi don yin zana annotation karkashin ActiveX online ... cewa aiki mafi kyau kamar yadda zai yiwu.

6 Tsarin madadin, Na mai suna, amma shi ne ainihin wani mataki na samun riƙe inda masu amfani a cikin ma'aikata da damar, fasalin data, goyon baya da kuma samar da sababbin kayayyakin. Ga bukatun da CAD / GIS bayani zai wuya kwanciyar hankali format da ikon tallafawa versioning, yayin da management kayan aikin, wanda da yalwa da kasancewa da raya kasa, da aminci, kuma abokin ciniki uwar garke aiki.

3 Matakan musayarWannan shi ne karo na biyu matakin na littafin, wanda aka sa ran bauta data a XML, GML ko wasu goyon OGC matsayin, kayayyakin da cewa muna fatan za a yi amfani da sauran geomatics mafita amma kuma komawa modified. Don ce pervertirse iya aiki a karkashin geofumados matsayin, ciki har da zaɓi na simplification vector ... a, da geofumados.

Ko da yake manufa ne don amfani mai gwajin na halaye daban-daban mafita a kowane mataki na tsari, dole ne mu manta da dukan mahallin. don haka mun kammala tare da wani sauri motsa jiki a cikin hali na wata babbar abokin ciniki, a matsayin institute of ƙasar a cikin wani kasa, kana so ka yi wani cikakken tsarin zuwa wani yanayi na game da 20 samar gyara CAD / GIS, 3 Developers, 75 masu amfani intanet ɗin da mahara online shawara (mun tsallake da halin kaka wani Oracle $ 30,000 shekara ta processor, software ci gaba, da kuma aiwatar da teams):

Yi tare da AutoDesk zai iya kashe $ 180,000Tare da gazawar a cikin lokaci na riƙe da cewa ya kamata a complemented sauran brands da aikin kwamfuta albarkatun bauta wa data nagarta sosai a karkashin high a raga, kuma postprocessing.

Yi tare da Bentley zai iya kashe har zuwa $ 210,000, tare da iyakancewa a lokacin musayar, littafin da aka cire daga gashi da wani abu a cikin koyo karatu

Yi tare da ESRI zai iya zama har zuwa $ 300,000, tare da iyakancewa a cikin ginin lokaci da wuraren ajiya, don abin da zai zama daɗaɗɗen wasu nau'o'i; ban da yadda za a iya samo lasisi 10 don buƙatar da ke $ 9,000

Yi tare da Rajista zai iya kashe $ 15,000, tare da iyakancewa a cikin lokaci na ginawa, ƙoƙarin koyon karatu da kuma buƙatar ƙwararru na farko (duk da haka a duk lokuta akwai mai yawa don bunkasa). Na kuma bayyana cewa akwai wasu matsaloli masu tsada, amma na yi amfani da wannan saboda na gwada shi kwanan nan kuma yana mamaki da ni.

A cikin mafi munin yanayi Ina da $ 155,000 ya bar aikin haya mai kyau kuma idan na yi wasa tare da lasisi mai jinkirin zan iya jarabawar kuɗin abokin ciniki.

Yana da ban dariya cewa kusan dukkanin za a iya yi tare da software kyauta, Pure GvSIG / Grass, Postgre, IntelliCAD da kuma sauran ganye idan zan iya hade wata tawagar amfaninsa matakai, geofumados developers da kuma yiwuwa ga sayar da aikin ... idan abokin ciniki ya shaide $ 700,000 ... zan iya buga wuya saboda hakan shi ne da yawan masu amfani da za a iya kubutar mafi free ko low-cost software.

A takaice dai, Ina fatan in tada sha'awar ku don samun kudi kyauta da rashin kudi, kodayake lokaci yayi takaice don ci gaba. Mun bayyana wasu taƙaitaccen taƙaitaccen bayani:

• Fasaha mai kyau shine: "wanda zai iya zama ci gaba"A cikin yanayin ci gaban duniya
• Ba za a taɓa samun fasaha ba "mai kyau ga komai"
• Dole ne a yi la'akari da batun "tattalin arziki" a cikin "tsarin rayuwa na fasaha"Kuma da zumunta
• Shirin da aka rubuta (Tsarin tsarin) ƙara tsawon rayuwa na fasaha
• Ba duka suna shirye don software kyauta ba, don fara aikace-aikace sun fi dacewa "kasuwanci", Tare da kwarewa za ka iya tunani game da aikace-aikace"low cost", tare da jin dadi ga"free"Ko" mallaka "