SAP technical features:
1. Platform independent
2. Database independent
3. Based on III tier Architecture
4. Open system.
5. Multi language support.
1. Platform independent: It can work in any type of platform
2. Database Independent: it can use any type of database Ex: SQL, .NET.
Ø Open SQL: it can work for any RDBMS
Ø Native SQL: It can work for respective a native usage.
Ø SAP has its own DBMS inbuilt.
3. Based on III tier Architecture: because of III tier architectures faster and that will not effect the change in one layer.
4. Open system: Open system is without changing source codes we can develop 70% of SAP remaining 30% we can customize.
5. Multi language support: it can support more than 75
PACKAGE: Already developed application 40% code is predefined.
Example: bill generationg
Application can be customized.
FUNCTIONS OF OPERATING SYSTEM
RESOURCE | MANAGEMENT |
Ø Memory Ø Processors Ø Information Ø Devices | Ø Keep track of resource Ø Identify jobs that need resources Ø Enforce a policy to allocate Ø Allocate Ø Deallocate. |
There many functions allocated for one user means III tiers
III TIER ARCHITECTURE:
Ø Client server architecture called as II tier architecture.
Ø Client is presentation layer/server.
Ø Server is Backend server.
III TIER:
Interfaces to communicate each other
Advantages of III tier technology:
1) Load balancing
2) Scalability(we can increase application server according to our requirements
3) Availability (if any problem in one as we can remove that place it a new one without effecting
4) Reliability.
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