1. By
D r. V e e r a

2. Types of Information System (Types of CBIS)
MIS (Management Information System.
TPS (Transaction Processing System.
DSS (Decision Support Systems.
EIS (Executive Information Systems
ES (Expert Systems)
OAS (Office Automation System)

3. TPS (Transaction Processing System)
TPS (Transaction Processing System) is an information system that manipulates data , from business transactions. Transaction include events such as sales, purchases, deposits, withdrawals, refunds and payments. TPS performs routines and repetitive tasks.
Example: When an organization sells something to a customer on credit, data about the customer, about product, about salespersons etc. must be stored and processed.

4. Definition:
“ TPS is the computerised system that perform and record the daily routine transaction necessary to conduct a business.”
“TPS is a type of information system that collects, stores, modifies and retrieves transaction of an organization.”

5. Examples of important TPS
Payroll Processing
Order Processing
Inventory System
Invoicing System (Price catalogues)
Accounts receivable systems
Purchasing systems
Accounts payable systems
General ledger systems.

6. General areas where TPS is used
ATM
Airlines Reservation
E-Payroll Processing
Any ticket reservation.

7. Types of Transaction Processing
1. Batch transaction processing:
In this information is gathered but not processed immediately. Processing may be done on daily, weekly or monthly basis.
Example: invoice or cheque processing in a bank.
2. OLTP (Online transaction processing) or Real time transaction processing:
Here transaction is processed immediately and operator has access to online database.
In other words input device is directly linked to the TPS and data are processed as soon as it is entered into the system.
Example: Withdrawal from an ATM.

8. Steps in Processing a Transaction
Enter data
Validate data
Process data
Generate Output
Process Inquiries

9. Advantages (Features) of TPS
Fast Performance
Continuously Availability
Ease of Use
Database availability
Data hiding
Modular growth
Sharing among many users
Data integrity

10. Disadvantages of TPS Chance of double booking
Processing schedule is predetermined
Problem in sorting the transactions
No possibility of error correction.

11. MANAGEMENT INFORMAION SYSTEM (MIS)
Meaning: MIS or Management Information System, are used to manage the data created within organization for providing information, to support the operations and to ease the management analysis and decision making functions in an organizations.
In other words, “The information system developed to provide accurate, timely and relevant information that helps managers in effective decision making are known as Management Information System.

12. Examples of MIS:
1.Personnel Information Systems
2.Marketing Information Systems
3.Sales Information Systems.
4. Production and Operations Information Systems.
Primary users of MIS are middle and top management.

13. MIS is used after TPS as shown in diag.
Summary Reports
Transaction data
TPS
MIS
Exception Reports

14. Input sources of MIS
Plan or Policies: It contains different types of strategies and financial plan to achieve the goal.
Transaction Processing System : It contains information from every transactions like-Payroll,Inventory Control, Order Processing and accounts etc.
External Sources: Such as Annual reports, Financial statements of competitors and general news items.

15. Output Source of MIS
1.Scheduled Reports: Management can take report periodically such as daily, weekly, and monthly basis.
2.Summary Report: Here MIS provide Key activities such as previous day critical activities at the beginning of each day.
3.Demand report: Here MIS provide information on demand or request of managers.
4. Exception Report: Sometimes MIS takes the decision on the basis of available information and automatically produced the report when a situation is unusual or requires management action urgently.

16. Objectives of MIS 1.Helpful in decision making
2. Provide planning and control tools
3. Provide right information to the right manager at the right time.
4. Create the process of communication
5. Provide complete system
6. Maintenance of centralised data
7.Less processing time

17. 8. Helpful to managers to compare results
9. Tabular and graphical reports.
10. Easy to access data

18. MIS Characteristics or What quality should be in ideal MIS
1. Flexibility
2.Reliability
3. Simplicity
4. Economical
5. Helpfulness
6. Consistency
7. Management – oriented
8. Management – directed

19. 9. Integrated
10. Common data flows
11. Heavy planning element
12. Sub-system concept
13. Common data base
14. Computerised
15. Exception based
16. Relevance
17. Brevity
18. Accuracy

20. Problems of MIS (Limitations)
Highly sensitive
Not qualitative
Not perfect substitute
Not flexible
Not universal
Ignores the non-quantitative factors
Not more effective in special circumstances.