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CHAPTER 3: IT Architecture - Coggle Diagram
CHAPTER 3: IT Architecture
Solution to Geographic Dispersion of Data
replication
keep a copy at each location
user can connect to internet to ensure copies remain synced
make copies entire data apps
partioning
break large database
each piece of database keep for that location
can be connected to internet
Architecture as DNA
Irreversibly preordains tradeoff between :
Operationally:
example : fitness of purpose, security, and maintenance costs
Strategically
example : Scalability and capacity to evolve in not-yet-anticipated ways
Enterprise architecture
App Architecture
choosing where to locate the three pieces
i) Interaction
ii) Apps logic
iii) Data storage
3th Arrangements
Client-server architecture
Peer-to-peer architecture
Cloud architecture
most centralized
Data Architecture
determines data consistency and accessibility
Integrated firmwide data is the foundation for automation and analytics
Widespread problem
Proliferation of duplicated
inconsistent data
IT Infrastructure Architecture
must be reliable but economical
Key choice:
Level of centralization
Peer-to-peer architecture
Scale economies
Firmwide integrations
Concentrates vulnerability
Decentralize
Tailoring to line functions
Widespread vulnerability
Increases costs