GIS Basics STRENGTHENING HUMAN RESOURCES FOR HEALTH Information

GIS Basics STRENGTHENING HUMAN RESOURCES FOR HEALTH

Information System • It is a set of people, procedures & resources that collects, transforms & disseminates information in an org. • Needs hardware, software and people to perform data input, storage, processing, output and control activities that transform data into information • Examples include: Land Information system, GIS, MIS, Enterprise information system, etc. STRENGTHENING HUMAN RESOURCES FOR HEALTH

What is GIS? • GIS is a system of hardware, software, data & people to collect, store, analyze, manipulate, model, visualize, and disseminating information about areas of earth (on, above & below). STRENGTHENING HUMAN RESOURCES FOR HEALTH

GIS as three integrated parts • Geographic: of the real world, spatial realities, the geography • Information: data and information, their meaning and use. • Systems: The computer technology and support infrastructures (software & hardware). • Thus others use ‘spatial’ or ‘land’ instead of ‘geographic’ STRENGTHENING HUMAN RESOURCES FOR HEALTH

STRENGTHENING HUMAN RESOURCES FOR HEALTH

GIS Vs CAD • Both are about & can produce maps • GIS is more than just layering of maps. The principal component is the ability to give attributes to the features on the map – Meaning – Support Modelling and analysis STRENGTHENING HUMAN RESOURCES FOR HEALTH

True GIS • A “true GIS” also includes the following characteristics: – A data management system (DBMS) – Analysis capability – Spatial geo-referencing – Graphics output STRENGTHENING HUMAN RESOURCES FOR HEALTH

Questions GIS can Answer • Location – What exist at a particular location (name, coordinates, attributes, ownership, etc. – Places getting certain treatments, etc. • Condition – Where are specific conditions (forest are over 10 m, all houses owned by person X) – …. . . treatment review STRENGTHENING HUMAN RESOURCES FOR HEALTH

Questions GIS can Answer. . • Trends – What has changed over time e. g. lake bank, increased house price, etc. • Patterns – How does road surface quality contribute to traffic accidents • Modeling – What if…cut 10 hectares of trees, climate warmed 2 degrees, etc. STRENGTHENING HUMAN RESOURCES FOR HEALTH

GIS Data Management • Data Structures – Vector (points, lines & polygons) – Raster (image format) • GIS layers themes – Layers, themes • GIS software – Arc. GIS, IDRISI, QGIS, Grass, Geomedia, etc. STRENGTHENING HUMAN RESOURCES FOR HEALTH

GIS Practical session • Working with layers • Viewing attribute data • Changing properties, display classes, labels, etc. STRENGTHENING HUMAN RESOURCES FOR HEALTH

STRENGTHENING HUMAN RESOURCES FOR HEALTH