As mapping ( geo-data visualization) is intended to convey a certain message to a certain audience, it is essential to use data sources that allow the intended visualisation result. The data should be of the right degree of detail and its use should not cause copyright problems. The producer quality of each data set should be taken into account, as well as the fitness of the data for the intended use. Aspects: message; data quality
This concept embraces the factors that could affect a GI system / project and could constitute obstacles to success or even decide a project is not doable. In order to ensure the success of a GI system or a GIS project there are several criteria to take into account from the very beginning of the conception of the GI system or project. A feasibility study may encompass different perspectives (economic, legal, technical, operational or scheduling ) to inform whether or not a project is worth the investment. An organisation should list the foreseen costs from these five perspectives listed above and the benefits (tangible or intangible) of implementing a system/project. Existing resources already available in-house and internal strategic plan in place could be critical to decide to undertake a project or not. The table below presents a non-exhaustive list of criteria and under which perspectives they should be examined.
Feasibility analysis should include a pilot study to evaluate and improve the system / project proposed.