Information Management

INFORMATIONMANAGEMENT

Focus on Database Management

INFORMATION MANAGEMENT

Information – is a processed data; that is, it is organized, meaningful and useful.

Information can be in the form of audio, images and video

example: we can post photos in the webpage

Management – means organization of and control over structure, processing and delivery of information.

Information Management – is the collection and management of information from one or more sources and the distribution of that information to one or more audiences.

Information Management entails organizing, retrieving, acquiring and maintaining information. It is closely related to and overlapping with the practice of data management.

INFORMATION MANAGEMENT FOCUS ON DATABASE

MANAGEMENT

Data – is a collection of unprocessed items, which can include text, numbers, images, audio and video

example: typing text in a keyboard

Database –is a collection of data organized in a manner that allows access, retrieval and use of that data.

Computers process data in a database into information.

Example: a database of an school where it contains data about its students and classes

Source: bpmsocialite.wordpress.com

DATABASE MANAGEMENT

Database Management System – users create a computerized database; add, modify and delete data in the database; sort and retrieve data from the data base and create forms and reports from the data in the database.

Data Integrity identifies the quality of data ex. Erroneous student address

Data Integrity is important because computers and people use information to make decisions and take actions.

Source: propertycasualty360.com

SAMPLE OF A DATABASE MANAGEMENT

Source: Discovering Computers 2011

SAMPLE OF A DATABASE MANAGEMENT


DATA INTEGRITY

Garbage in Garbage Out is a computing phrase that points out the accuracy of a computer’s output depends on the accuracy of the input.

If you enter incorrect data into a computer (garbage in), the computer will produce incorrect information (garbage out).

Soure: delvinia.com

QUALITIES OF VALUABLE INFORMATION

Accurate Information is error free.

Verifiable Information can be proven as correct or incorrect information.

Timely Information has an age suited to its use.

Organize information is arranged to suit needs and requirements of the decision maker.

Accessible information when the decision maker needs it.

Useful Information has meaning to the person who receives it.

Cost-effective information should give more value than it costs to produce.

Source:don-jai.com

HIERARCHY OF DATA

Data is organized in layers. In the computer profession, data is classified in a hierarchy. Each higher level of data consists of one or more items from the lower level.

Database contains files (sometimes tables), a file contains records, a record contains fields and a field is made up of one or more characters.

HIERARCHY OF DATA


MAINTAINING DATA

File maintenance refers to the procedures that keep data current.

Adding Records

Modifying Records

Deleting Records

Validating Data

FILE PROCESSING VERSUS DATABASES

Almost all application programs use the file processing approach, the database approach or a combination of both approaches to store and manage data.

File processing system if each department or area within an organization has its own set of files. The records in one file may not relate to the records in any other file.

Database Approach many programs and users share the data in the database.

Source: expertilog.com

FILE PROCESSING VERSUS DATABASES


DATABASE APPROACH


DATABASE MANAGEMENT SYSTEM

It is a software that allows us to create, access and manage a database. DBMSs are available for many sizes and types of computers.

What constitute the DBMS?

A data dictionary sometimes called a repository contains data about each file in the database and each field in those files.

File Retrieval and Maintenance

A DBMS provides several tools that allow users and programs to retrieve and maintain data in the database.

Source: newjerseymls.com

Data Security – A DBMS provides means to ensure that only authorized users access data at permitted times.

Back Up Recovery – Occasionally a database is damaged or destroyed because of hardware failure, a problem with the software, human error or a catastrophe such as fire or flood.

A DBMSs provides a variety of techniques to restore the database to a usable form in case it is damaged or destroyed i.e back up


Source: kivala-hr.com


Managing a company’s database requires a great deal of coordination. The role of coordinating the use of the database belongs to the database analyst and administrators.

Information Technology (IT) professionals follow database design guidelines and need cooperation from all database users.

Source: chulacrc.org

INFORMATION MANAGEMENT IN

PANGASINAN STATE UNIVERSITY (STUDENT

INFORMATION) PSU Lingayen Campus is on the line of computerizing all its

transactions particularly student information .

Currently, the campus still employ manual process in filing and maintaining data ( e.g. grades of students management, personal records of every student etc.) which contains volume of records.

A project has been initialized by students under the supervision and leadership of the Math, ICT and CS Dept. to fulfill the computerization of student information.

FLOWCHART OF COMPILING STUDENT RECORDS

FLOWCHART FOR UPDATING STUDENT RECORDS

FLOWCHART FOR STUDENT’S SUBMISSION OF REQUIREMENTS

PROBLEMS ENCOUNTERED IN MANUAL FILING & MAINTAINING OF STUDENT

INFORMATION

Slow Generation of Transcript of Records

Unsecured Files

Difficulty in Searching and Updating

CONTEXT DATA FLOW DIAGRAM OF STUDENT INFORMATION SYSTEM

PROPOSED DATA FLOW OF STUDENT INFORMATION SYSTEM

IMPLEMENTATION OF THE COMPUTERIZES STUDENT

INFORMATION SYSTEM

Faster response to client(students) with regards to producing Transcript of Records

The future of the Database that will be used will have a security which could only limit access to the application.

Faster retrieval of file of the students

PRESENTED BY:ENGR. ARNOLD MARINAS, MME STUDENT

PANGASINAN STATE UNIVERSITY-URDANETA CAMPUS (GRADUATE SCHOOL)

Education

Information Management