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IT TOOL USED IN BSNL
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Speed
Accuracy Flexibility
Storage Capacity and Volume
Data Processing
Database
Why Computerization ?
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Reduction in Paper Cost
Reduced Cost
Reduces the space requirement
Reduces manpower requirement
Increased ability to performcomputations
Management Information
Why Computerization ?
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Data?Data is raw material for data processing.
data relates to fact, event and transactions.
Information?Inform
ation
is data that has been processedin such a way as to be meaningful to theperson who receives it. it is any thing that iscommunicated.
Data Vs Information
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Initial Data Storage Methods
Data is represented in one or more flat files
Flat file is nothing but electronicrepresentation of cardboard file.
Every business group has its own set of files
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Disadvantages of Flat File Systems
No centralized control.
DataRedundancy
Data Inconsistency
Data can not be shared
Security issues Integrity can not be maintained
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Database Management Systems
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Database Management Systems
A system whose overall purpose is to
record and maintain information
A database is a repository for stored
data and programs to manipulate it.
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Advantages of DBMS Centralized control.
No DataRedundancy
Data Consistency
Data can be shared
Security can be enforced Integrity can be maintained
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Data Models A data model is a collection of concepts
for describing data, relations,constraints etc.
Types of Data Models : Hierarchical,Network and Relational Model
The relational model is the most widelyused model today
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Hierarchical DBMS Can not handle Many-Many relations
Can not reflect all real life situations
Anomalies in insert, delete andupdate operations.
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Network DBMS Data is represented by records and
pointers
Addresses Many-Many relations
Insert,delete,update operations possible
Complex i
ndesig
n
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What isRDBMS?
RDBMS stands for Relational DatabaseManagement System.
RDBMS is the basis for SQL, and for allmodern database systems like MS SQLServer, IBM DB2, Oracle, MySQL, andMicrosoft Access.
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What isRDBMS?
A Relational database management system (RDBMS) is a databasemanagement system (DBMS) that isbased on the relational model asintroduced by E. F. Codd.
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Relational DBMS
Based on Relational Mathematicsprinciples
Data is represented in terms of rowsand columns of a table
Easy to design
No anomalies for insert/delete/update
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What is Table? The data in RDBMS is stored in database
objects called tables.
Data is viewed as existing in two dimensionaltables known as relations
The table is a collection of related data
entries and it consists of columns and rows. A table is the most common and simplest
form of data storage in a relational database.
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Example of Customers dataID Name Age Address Salary
1 Ramesh 38 Vizag 5000
2 Srinivas 42 Banagalore 8000
3 Syam 40 Hyderabad 10000
4 Karthik 28 Vizag 4000
5 Kaushik 26 Vizag 4000
6 Sahit 22 Hyderabad 6000
7 Ashrit 26 Chennai 3000
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What is Field? Every table is broken up into smaller
entities called fields.
The fields in the CUSTOMERS tableconsist of ID, NAME, AGE, ADDRESSand SALARY .
A field is a column in a table that isdesigned to maintain specificinformation about every record in thetable.
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What is record, or row? A record, also called a row of data, is each
individual entry that exists in a table.
A Record is a horizontal entity in a table. For example there are 7 records in the
above CUSTOMERS table. Following is asingle row of data or record in theCUSTOMERS table:
1 Ramesh 38Vizag 5000
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What is a Column? A column is a vertical entity in a table
that contains all information associatedwith a specific field in a table.
For example, a column in theCUSTOMERS table is ADDRESS which
represents location description andwould consist of the following:
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What is a Column? Address
Vizag
Banagalore
Hyderabad
Vizag
Vizag
Hyderabad
Chennai
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Relational Terminology
Tuple (Row) Attribute (Column)Relation (Table)
Integrity Constraints
Primary KeyForeign Key
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Structured Query Language
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Structured Query Language DQL Data Query Language
DML Data Manipulation language
DCL Data Control Language
DDL Data Definition Language
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DQL Select
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DML Insert
Update
Delete
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DCL Commit
Rollback
Save point
Set transaction
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DDL Create
Alter
Drop
Truncate
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Integrity Constraints Primary key (PK)
Foreign Key (FK)
Unique key (UK)
Not Null
Check
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Data Types Character
Varchar2
Number
Date
BLOB BFILE
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BSNL IT Tool BSNL Working Environment
IT Tool used in BSNL
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Outdoor MDF Indoor Test Desk
CONTEXT DIAGRAM
COM
TRAFRS
System Administration
Commercial Section
Billing & Accounting
Potential Customer
Working Customer
Complaint Booking
Reports
Enquiries
Payments & Refunds
DQ and
Other
Enquiries
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DOTSOFT
DotSoft is the first integrated telecom software applicationin BSNL comprising of commercial, billing, accounting,fault repair service and directory enquiry services.
It has been conceptualised, designed and developedentirely by the core group of the Software DevelopmentCentre of the O/o CGMT, Andhra PradeshTelecommunications Circle, Hyderabad.
It is based on the latest software technologies running ona WAN and is the first of its kind in BSNL in the field of information technology.
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¤ First it was tested and implemented in Guntur SSA in 1997.
¤ It has been successfully implemented in 171 SSAs across thecountry. All the SSAs of Andhra Pradesh, Tamilnadu,Karnataka, Assam, Punjab, Chattisgarh and Gujarat Telecomcircles.
¤ Rest of SSAs are from states of Maharastra, MadhyaPradesh, Uttar Pradesh, Rajasthan, J&K and Haryana.
¤ It has been approved by the Telecom Commission for implementation all over India.
¤ Dotsoft ensures better customer satisfaction andtransparency in BSNL service.
DOTSOFT
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DoTSoFT is an enterprise wide telecom database system thatrevolutionizes the operation and supervision of customer services by enabling all the personnel to work online.
The central server contains the complete database to which allthe nodes anywhere in the district log in. The database isaccessed using application software residing in the nodes whichhave GUI interface.
¤ OS : Linux
¤ Front end : Forms 6i
¤ Back end Database : Oracle 9i
¤ Client Server Model ± 2 layer architecture
DOTSOFT
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Router
A Layer 3 (Network Layer of OSI Model) device
Enables transit of packets between two LAN's.
Traffic can be monitored, administered from the
Router.
Swtich
A Layer 2 (Data Link Layer of OSI Model) device. Enables transit of packets within a LAN.
Flow control / Error Detection / Signal amplification
of frames is done in the switch.
DOTSOFT - Network Elements
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Hub
A Layer 1 (Physical Layer of OSI Model) device
Enables transit of packets within a LAN.
The signal amplification is done.
The data from the data link layer is converted into
electrical signals and sends on physical media.
Modem For conversion of different protocols. For example
Ethernet to Serial Interface (PPP protocol).
DOTSOFT - Network Elements
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The nodes in the customer service centre service all the
subscriber requests which flow to the commercial and
accounts sections as the case may be.
After validation and approval from the the concerned
sections the work orders flow to the different field units
depending on the activity.
After the completion of the work orders the commercial
and billing data of the subscriber gets updated.
DOTSOFT
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Bill generation is absolutely easy and totally secure.
Payments are faster and completely hassle free for the
customer and the counter personnel because of the use
of bill scanners.
Revenue accounting and ledger reports are available
immediately at the end of the month.
The system can generate any kind of detailed as well as
statistical reports.
Online enquiry is available for supervision and queries.
CONCISE DESCRIPTION OF DOTSOFT
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DoTSoFT is one of the first steps towards the bold andultimate goal of E-Governance and paperless offices.
All the work is done online which results in excellent
customer service, non duplication of work, totalsupervision, complete transparency, better planning andwith a facility of instant reports.
Single window concept introduced for the first time.
Concept of request registration number introducedthrough which the status of the request can be trackedand inquired.
DOTSOFT
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Signature warehousing to be included for onlineverification purpose.
Instant electronic flow of data between the offices and
field units with facility to print wherever required.
Various intimation letters to subscribers automaticallygenerated.
Priority execution of advice notes.
Messaging system between CO and Field units.
Dotsoft mail system between all users.
DOTSOFT
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Complete history of subscriber¶s activities availableonline.
Details of subscriber records & requests, bills, demand
notes, wait list, payments and work orders availableonline.
Variable billing cycle, ISDN billing, Groupbilling(fortnightly, monthly ,bi-monthly).
Centrex,Corporate billing, PT billing and WLL billing.
NPC advice notes once completed online are billed in thenext schedule.
DOTSOFT
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Directory Enquiry shows the status at the moment of
enquiry. It can query on any of the subscriber¶s details in
part or in full.
Complete managerial supervision is possible about theactivities happening anywhere in the district.
Statistical data is generated to find out activity, usage
and payment patterns to facilitate better customer
service.
DOTSOFT