Analisis kebutuhan sistem web gis
- 1. Analisis Kebutuhan Sistem Dany Laksono February 9, 2020 Mata Pelatihan WebGIS dan Transformasi Sistem Koordinat SKKNI Teknisi Utama – Analis Sistem Informasi Geografis
- 2. Analisis Kebutuhan Sistem • Bagaimana internet bekerja? • Bahasa dan Protokol komunikasi inter-net • Bagaimana halaman web dibuat? • Praktek: HTML, CSS, JS
- 6. GIS is a Model of the real World Abstraction Process Real World Spatial Data Model
- 7. “ (it is) Impossible to map the world–we select and make graphics so that we can understand it” ~ Roger Tomlinson, note on an agenda, 1981. GIS is a Model of the real World
- 8. GIS is a Model of the real World Spatial Data Model http://www.geography.hunter.cuny.edu/~jochen/GTECH361 Raster Vector
- 10. Properties of Spatial Data Attribute Geometry http://www.geography.hunter.cuny.edu/~jochen/GTECH361/ Spatial data consists of Geometry and Attribute An Attribute could be anything related to the spatial data
- 11. Components of GIS GIS consists of interrelated components: 1. Hardware 2. Software 3. Methods of Analysis 4. Data 5. People
- 12. UGM.AC.ID “The GIS Subcomponents” Modified from Marble and Peuquet (1983) As a System, GIS consist of four main components as subsystems Each subsystem defines elaborate process by themselves
- 13. UGM.AC.ID The GIS Subsystem: Input Spatial Data Acquisition: converting real world to geospatial data PRIMARY SECONDARY Surveying Satellite Positioning Remote Sensing Photogrammetry Digitization Automated Conversion Scanning
- 14. UGM.AC.ID The GIS Subsystem: Input GNSS Positioning Surveying Remote Sensing Photogrammetry
- 15. UGM.AC.ID The GIS Subsystem: Preprocessing Query: Asking the right questions
- 16. UGM.AC.ID The GIS Subsystem: Spatial Analysis Location …Where is it? Condition …What is it? Patterns … How is it distributed? Trends …What has changed? Modeling …What if …? Time andTravel? What is near me? Etc. Query: Asking the right questions
- 17. UGM.AC.ID The GIS Subsystem: Output
- 19. Tahapan Implementasi GIS Raising Awareness Developing System requirements Evaluation of Alternative System System Justification & Implementation plan development System Acquisition & Start Up Operational System Tahap Implementasi GIS menurut Arronoff (1989)
- 22. Metode Analisis User Requirements Affiniti Diagram (Kawakita-Jiro Method)
- 23. Metode Analisis User Requirements Affiniti Diagram (Kawakita-Jiro Method) 1. Identify the purpose 2. Determine groupings. 3. Determine contributing factors. 4. Organize 5. Analyze and share
- 24. Metode Analisis User Requirements Relation Diagram 1. Identify Problems and their relation 2. Identify the root of problems
- 25. Metode Analisis User Requirements Relation Diagram
- 26. Metode Analisis User Requirements Tree Diagram 1. Identify an Impact 2. Pick the most probable root of problems 3. Derive sub-problems and sub-sub problems
- 28. UGM.AC.ID Background Combined satellite and ground-truth monitoring to reduce the risk, prevent and monitor peatland fire in Pulau Padang Geocrowd: Peatfire
- 29. Background
- 30. Background Problem: Satellite monitoring – Low resolution (~2 kms), false report of Hotspot data, low confidence. Need ground-truth verifications Geocrowd: Peatfire
- 31. Business Requirement A Mobile Application to collect data based on user input, social media tags and services to report and verify haze mitigation in peatland areas Social Media (spatially enabled) #Hashtags Geocrowd App User report Real World Phenomenon Real time Hotspot API HotSpot Verification (GPS + Foto + Form) -Data accuracy-
- 32. • Limited Internet Connectivity • Near-real time response (e.g. in case of fire incidents) • User Engagements: Socio-cultural challenge • Vast area to cover, safety considerations during fire incidents reporting User Requirements
- 33. UGM.AC.ID Concept of Application Strategies • Frontend (App) - Backend (server) two-way communications • Exit strategy for offline conditions: Switch to SMS Mode • Offline mode: using local basemap while offline • User report local data: Sync to server while online • Intuitive and easy-to-use design • User Estimation on Distance and Severity in the report Form • Collaboration with Network Provider for signal availability
- 34. UGM.AC.ID Concept of Application Strategy Offline data collection: Ushahidi www.usaelectionmonitor.com
- 35. System Requirements Main Features: a. Could be used while online/offline b. Collect user input (e.g. photos) via app c. Gather social media data (via hashtags) d. Hotspot data services as basemap e. User verification to hotspot data f. Notification for hotspot(s) nearby Other: a. User Profiles and statistics b. Dashboard for monitoring users and user inputs c. Low data usage d. Offline Data Sync (on no signal condition) Geocrowd: Liput Gambut App Features Optional: • Report from user: time and magnitude of hazard • Estimation on severity and distance to fire • Visual parameters regarding to the fire • Interact with the user (e.g. text messages) • Weather data
- 36. TERIMA KASIH
Editor's Notes
- #28: Seberapa real-time? Perlu ditambahkan informasi cuaca – Weather API
- #29: Seberapa real-time? Perlu ditambahkan informasi cuaca – Weather API
- #30: Seberapa real-time? Perlu ditambahkan informasi cuaca – Weather API
- #31: Seberapa real-time? Perlu ditambahkan informasi cuaca – Weather API
- #32: Logic: kalau lokasi pengguna berada sekitar 1 km dari lokasi hotspot tercatat, muncul notifikasi untuk verifikasi
- #33: Challenge: develop an app with low data usage Sync data between users and servers Seberapa real-time? Perlu ditambahkan informasi cuaca – Weather API
- #35: Challenge: develop an app with low data usage Sync data between users and servers