by Dinesh Thakur Category: Information and System Concepts

Systems have very specific common characteristics which help in its identification. They are:

 
by Dinesh Thakur Category: Information and System Concepts

A special class of systems dealing with the storage, processing and delivery of information is of special significance to business and is called information systems. When these information systems aid the management in taking decisions, they are then broadly classified as management information systems. These are special systems with unique characteristics.



 
by Dinesh Thakur Category: Information and System Concepts

The systems approach is an old concept. The approach stands on the assumption that breaking down of a complex concept into simple easy to understand units helps in better understanding of the complexity. Ludwig von Bertalanffy first proposed the systems approach under the name of 'General System Theory'.

 
by Dinesh Thakur Category: Information and System Concepts

For the better part of our productive life, most of us are a part of one organization or another. The organization that we are part of may be very structured, like the armed forces or corporate entities or it may be loosely structured like a neighborhood cricket team. Even though organizations may be of different types, they have some common characteristics like the existence of a common goal/mission towards which each member of the organization works for, a plan or an agenda to make the goal/mission a reality and the utilization of resources to achieve the goal.

 
by Dinesh Thakur Category: Information and System Concepts

Information and its use has become the competitive advantage of today's world. The efficiency with which a firm manages its information determines its success in the marketplace. This enormous power of information unleashed in today's world has brought down reaction times for decision-making of managers, made customers more aware, competitors more efficient and regulators more alert.



 
by Dinesh Thakur Category: Information and System Concepts

Information systems can be manual but the compulsions of competition in modern business makes information systems run on information technology platforms. Information technology is a term used to describe a set of technologies that includes technologies from the domain of computer science and engineering, networking, electronics and telecommunication and other such domains.



 
by Dinesh Thakur Category: Information and System Concepts

Information in an organization can be managed if the data that the organization generates by interacting regularly with its internal employees and external customers is managed. If the data about the transactions that the organization enters into with other entities is managed then information can also be managed to a large extent as most information is generated from the background transaction level data within the organization. Some information however, is dependent on external data that is not available within the organization.



 
by Dinesh Thakur Category: Information and System Concepts

Every manager today has to manage loads of information; some for the purpose of reporting and some for taking actionable decisions. The competitive environment that exists in today's time makes this task of management even more challenging. Today's managers have to work in an increasingly competitive globalize environment, in which the cost of a faulty decision in quite high. Hence, they rely more and more on data driven decision-making techniques rather than 'gut feeling'. The focus is very much on gaining understanding about an issue before jumping to take a decision. MIS fills this gap.



 
by Dinesh Thakur Category: Information and System Concepts

From a managerial context the value of information is judged on the basis of the following parameters:



 
by Dinesh Thakur Category: Information and System Concepts

The transformation process in certain sub-system, especially at the lowest level may not be defined. However, the inputs and outputs are known. Such a sub-system, whose processes are not defined, is called a black box system.

 
by Dinesh Thakur Category: Information and System Concepts

Information may be understood to have various dimensions. However, for our purpose, the following dimension of information will be of interest.



 
by Dinesh Thakur Category: Information and System Concepts

An open system is one that interacts with its environment and thus exchanges information, material, or energy with the environment, including random and undefined inputs. Open systems are adaptive in nature as they tend to react with the environment in such a way organizing', in the sense that they change their continued existence.



 
by Dinesh Thakur Category: Information and System Concepts

A deterministic system is one in which the occurrence of all events is known with certainty. If the description of the system state at a particular point of time of its operation is given, the next state can be perfectly predicted.

 
by Dinesh Thakur Category: Information and System Concepts

Types of System : Physical or Abstract : Physical system is tangible entities that may be static or dynamic in nature. Abstract system is conceptual or non-physical. The abstract is conceptualization of physical situations.

 
by Dinesh Thakur Category: System Development Approaches

Systems development on a large scale was first attempted by the US military in its Department of Defense (DOD) and by the National Aeronautics and Space Administration (NASA). They were therefore instrumental in developing the framework of a sequence of stages or phases for developing a system.

 
by Dinesh Thakur Category: System Development Approaches

Preliminary investigation is the first step in the system development project. It is a way of handling the user’s request to change, improve or enhance an existing system. System investigation includes the following two stages:

 
by Dinesh Thakur Category: System Development Approaches

In order to develop a system successfully, it is managed by breaking the total development process into smaller basic activities or phases. Any system development process, in general, is understood to have the following phases.

 
by Dinesh Thakur Category: System Development Approaches

The model states that the phases are organized in a Linear Order.  In other words, the output of one phase becomes the input for the next phase. Various phases have already been explained under a general model of system development. The different phases of the waterfall model are:

 
by Dinesh Thakur Category: System Development Approaches

There are two basic approaches for development of MIS :

a) System development life cycle : The system development life cycle have following steps of development :

 
by Dinesh Thakur Category: System Development Approaches

In order to develop a system successfully, it is managed by breaking the total development process into smaller basic activities or phases. Any system development process, in general, is understood to have the following phases 

 

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About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.