文档介绍：GIS Hardware/Software System Architecture and Design
Parts of this lecture draw upon:
Dave Peters, ESRI User Conference 2002
And Ronald Briggs, U Texas, Dallas
GIS Software ponents
User interface
Tools and functions
Data manager
System architecture configurations
Desktop
Client-server
Centralized desktop
Centralized server
GIS software categories
Desktop
Server ()
Developer
Hand-held
Other
ESRI’s ponents
Clients
ArcSDE Services
ArcInfo
ArcEditor
ArcView
ArcIMS Services
ArcExplorer
Browser
ArcEngine/
ArcObjects
Application
Development &
Customization
c:\ ArcGIS Workstation
Consistent interface
Increasing capability
ArcMap
atalog
ArcToolbox
ArcMap
atalog
ArcToolbox
ArcMap
atalog
ArcToolbox
Source: ESRI with mods.
$
ArcServer Services
GIS Characteristics
Detailed, high resolution graphic displays
Large data files
Intensive data putation
Need powerful workstations
Need powerful servers for data retrieval and batch processing
Need high works
These requirements differ significantly from standard IT environments.
Information ponents
Computer hardware: physical machinery, boxes, cables, connectors
Software: instructions which make hardware perform as desired by user
Operating System to control the basic functions of the hardware works
Applications to provide users with desired results
Data and databases to store information required by works to distribute information between puters and ware: people, procedures & organizational structures to make all of the above function
85% of cost of IT?
puter: ponents
Central processing unit (CPU):
microprocessor (control unit and arithmetic/logic unit)
primary storage -RAM (main memory or simply memory)
Secondary storage
disks
ic
optical
tapes
Input/Output Devices (I/O)
communications devices/ network connections
cpu
Main
Memory
Storage
-disks
-tapes
Input
devices
Output
devices
(hardcopy)
Networks
Central
Processor
Some Measurement Concepts for CPU and Storage
capacity
bits an