Integrating Airport Geographic Information System (GIS) Data with Public Agency GIS (2014) / Chapter Skim
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Pages 24-33
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24 chapter four CHALLENGES TO DATA SHARING AND STEPS TO OVERCOME THEM Despite the overwhelming desire for more centralized, readily accessible data and the growing range of web-based options to satisfy that desire, many airports and public agencies face challenges that constrain their ability to get the data they need. The reasons can be technical or organizational, although most reported that technical challenges are easier to address and that organizational challenges far more difficult to overcome.
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25 Open data exchange also frees agencies of the burden of developing and enforcing written agreements that many have (and some still) require.
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26 developing agreements by providing a matrix that helps identify restrictions that can be referenced in standardized data sharing agreements. A few airports and several public agencies indicated that they have had or still have written agreements that data requesters were asked to sign before information could be shared.
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27 at a cost not to exceed the direct cost of duplication." Although this case is somewhat unusual, it may be precedent-setting. Legislation in the state of Florida, however, offers a different example that accentuates an open data philosophy.
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28 easier and less costly to simply make data freely available to those who need it through downloads, WMS, or other means. (This is another incentive for publishing data by means of WMS or FTP sites, as described in chapter three.)
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29 sharing and GIS collaboration can be very effective. Summarized recommendations written in a nontechnical way and supported by cost/benefit justification have proven to be very useful.
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30 land ownership for sound insulation programs or land acquisition, the data are essential, so these differences can become problematic. Some larger public organizations, such as the Denver area's North Central All-Hazards Region (see the case example in chapter five)
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31 to support the regional analysis their users require. The result is that not all data exchanged is of equal quality, and may lack metadata context.
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32 Improper Derivatives Public agencies often indicated that they need to adapt the data they receive from others to meet the needs of their users. Airports do this less frequently, perhaps because the majority of their data comes from internal sources and has been developed to meet their specific needs.
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33 chapter five) , recognize the importance of metadata and check all of the data they develop or receive to ensure that it has a minimum level of metadata.
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