Information System is a system that handles the flow and maintenance of information, which supports the business operation. The components of information systems are people, equipment, procedures and data. Information Systems are used by organization for different purposes.
Explain in detail the type of information system with an example each. Information systems generally are classified into five categories: The following sections present each of these information systems.
Office Information Systems An office information system, or OIS pronounced oh-eye-essis an information system that uses hardware, software and networks to enhance work flow and facilitate communications among employees. Win an office information system, also described as office automation; employees perform tasks electronically using computers and other electronic devices, instead of manually.
With an office information system, for example, a registration department might post the class schedule on the Internet and e-mail students when the schedule is updated. All levels of users from executive management to no management employees utilize and benefit from the features of an OIS.
The software an office information system uses to support these activities include word processing, spreadsheets, databases, presentation graphics, e-mail, Web browsers, Web page authoring, personal information management, and groupware.
Office information systems use communications technology such as voice mail, facsimile faxvideoconferencing, and electronic data interchange EDI for the electronic exchange of text, graphics, audio, and video.
An office information system also uses a variety of hardware, including computers equipped with modems, video cameras, speakers, and microphones; scanners; and fax machines.
A transaction is a business activity such as a deposit, payment, order or reservation. Clerical staff typically performs the activities associated with transaction processing, which include the following: Maintaining data, which involves adding new data, changing existing data, or removing unwanted data.
Transaction processing systems were among the first computerized systems developed to process business data - a function originally called data processing.
Usually, the TPS computerized an existing manual system to allow for faster processing, reduced clerical costs and improved customer service.
The first transaction processing systems usually used batch processing. With batch processing, transaction data is collected over a period of time and all transactions are processed later, as a group.
As computers became more powerful, system developers built online transaction processing systems. With online transaction processing OLTP the computer processes transactions as they are entered. When you register for classes, your school probably uses OLTP.
The registration administrative assistant enters your desired schedule and the computer immediately prints your statement of classes.
The invoices, however, often are printed using batch processing, meaning all student invoices are printed and mailed at a later date.
Today, most transaction processing systems use online transaction processing. Some routine processing tasks such as calculating paychecks or printing invoices, however, are performed more effectively on a batch basis. For these activities, many organizations still use batch processing techniques.
Management information systems thus evolved out of transaction processing systems. A management information system, or MIS pronounced em-eye-essis an information system that generates accurate, timely and organized information so managers and other users can make decisions, solve problems, supervise activities, and track progress.
Because it generates reports on a regular basis, a management information system sometimes is called a management reporting system MRS. Management information systems often are integrated with transaction processing systems.
Using this information, the related management information system can produce reports that recap daily sales activities; list customers with past due account balances; graph slow or fast selling products; and highlight inventory items that need reordering. A management information system focuses on generating information that management and other users need to perform their jobs.
An MIS generates three basic types of information: Detailed information typically confirms transaction processing activities.
· Types of information In the modern 21st century business world information can be presented in different ways. Oral information uses sound to convey information, eg a timberdesignmag.com Explain The Different Types Of Information Systems Used At The Different Levels Of Management Hierarchy. A) The different types of information systems at Western Chemical are: a. Operations support systems These include: i. Transaction processing systems Transaction processing systems are used to process business transactions. Western Chemical uses the internet and an electronic . Relationship between different types of information system used in different level of management hierarchy TPS is used in lower (operational) level of management. The purpose of TPS is to streamline and ease routine, daily activites basically concerned with data collection. So, it is said that around 90% or more of the data are collected by TPS.
A Detailed Order Report is an example of a detail report. Summary information consolidates data into a format that an individual can review quickly and easily. To help synopsize information, a summary report typically contains totals, tables, or graphs. An Inventory Summary Report is an example of a summary report.
Exception information filters data to report information that is outside of a normal condition. These conditions, called the exception criteria, define the range of what is considered normal activity or status.
An example of an exception report is an Inventory Exception Report is an Inventory Exception Report that notifies the purchasing department of items it needs to reorder.
Exception reports help managers save time because they do not have to search through a detailed report for exceptions. Exception reports thus help them focus on situations that require immediate decisions or actions. · Strategic information systems are the information systems that companies use to help achieve their goals and become more efficient.
Businesses use these systems to achieve a competitive advantage on their competitors as they seek to provide a good or service in a way that is better than that of their timberdesignmag.com://timberdesignmag.com · TPS are major producers of information that is required by many other systems in the firm, which, in turn, produce information for other systems.
These different types of systems are loosely coupled in most business firms, but increasingly firms are using new technologies to integrate information that resides in many different timberdesignmag.com://timberdesignmag.com~als/mis10e/ch2/timberdesignmag.com · Three level pyramid model based on the type of decisions taken at different levels in the organization.
Similarly, by changing our criteria to the differnt types of date / information / knowledge that are processed at different levels in the organization, we can create a five level timberdesignmag.com /timberdesignmag.com Some of the important types of information that are required at different levels of management are as follows: A more functional classification of information is on the basis of types of decisions.
Operational information relates to the day-to-day operations of the organisation and thus, is useful. · These types may be referred to by different names and may not be recognized by all as definitive, A systems estimate is best used as a budgetary tool in the planning stages of a project.
Accuracy is expected at Unit Price Estimating, because of the time and detailed information required, is not suited as a budgetary or planning tool. A timberdesignmag.com Explain The Different Types Of Information Systems Used At The Different Levels Of Management Hierarchy.
A) The different types of information systems at Western Chemical are: a.
Operations support systems These include: i. Transaction processing systems Transaction processing systems are used to process business transactions.
Western Chemical uses the internet and an electronic commerce timberdesignmag.com