mis mr supercool

8/6/2019 Mis mr supercool

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ManagementManagementInformationInformation

SystemSystem


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ManagementManagement

Management is the art of getting thingsManagement is the art of getting thingsdone through and with the people indone through and with the people in

formally organized groupformally organized group..

Managerial Functions:Managerial Functions:

1. Planning1. Planning

2. Organizing2. Organizing

3. Staffing3. Staffing

4. Directing4. Directing

5. Controlling5. Controlling


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InformationInformation

Information is data that is processed and isInformation is data that is processed and is

presented in a form which assists decisionpresented in a form which assists decision--

makers.makers.

Data Processing InformationData Processing Information

Management Information refers to the quality ofManagement Information refers to the quality ofinformation in terms of its timeliness, accuracy,information in terms of its timeliness, accuracy,

completeness, relevance, adequacy, explicitnesscompleteness, relevance, adequacy, explicitness..


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SystemSystem

A set of elements which are joined together toA set of elements which are joined together to

achieve a common objective.achieve a common objective.

OROR

A group of interrelated or interacting elementsA group of interrelated or interacting elementsforming a unified whole.forming a unified whole.


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Management Information SystemManagement Information System

Management Information system is a systemManagement Information system is a systemconsisting of people, machine, procedure,consisting of people, machine, procedure,databases and data models, as its elements.databases and data models, as its elements.

The system gathers data from the internal &The system gathers data from the internal &external sources of an organization; processes itexternal sources of an organization; processes itand supplies Management Information to assistand supplies Management Information to assistmanagers in the process of decision making.managers in the process of decision making.


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MIS Functions, Cont.MIS Functions, Cont.

Data CapturingData Capturing

Processing of DataProcessing of Data

Storage of InformationStorage of Information Retrieval of InformationRetrieval of Information

Dissemination of Management InformationDissemination of Management Information


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Functions of MISFunctions of MIS


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System AnalysisSystem Analysis

Types of SystemsTypes of Systems

1.1. Data Processing System.Data Processing System.

2.2. Transaction Processing System.Transaction Processing System.3.3. Functional System.Functional System.

4.4. Integrated System.Integrated System.

5.5. Enterprise Management.Enterprise Management.


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Need of System AnalysisNeed of System Analysis

1.1. System Objective.System Objective.

2.2. System Boundaries.System Boundaries.

3.3. System Importance.System Importance.4.4. Nature of the System.Nature of the System.

5.5. Role of the system as an interface.Role of the system as an interface.

6.6. Participation of Users.Participation of Users.7.7. Understanding of Resource Needs.Understanding of Resource Needs.

8.8. Assessment of Feasibility.Assessment of Feasibility.


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System Development Life CycleSystem Development Life Cycle

(SDLC)(SDLC)

Mission and goals.Mission and goals.

Information needs specifications.Information needs specifications.

Analysis.Analysis. Designing.Designing.

Coding and development.Coding and development.

Testing.Testing. Implementation.Implementation.

Maintenance.Maintenance.


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Steps in System DesignSteps in System Design

Data entry of the transactions, masterdataData entry of the transactions, masterdata

A simple data entry as per the inputA simple data entry as per the input

design specification.design specification.

Data validationData validation The data entry isThe data entry is

validated as per the input picturevalidated as per the input picture

specification and control specification.specification and control specification.

Transaction validationTransaction validation Validates theValidates the

transactions for its type and for its internaltransactions for its type and for its internal

consistency.consistency.


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Steps in System Design, Cont.Steps in System Design, Cont.

Edit and updateEdit and update The errors and new data toThe errors and new data to

be updated to complete the records.be updated to complete the records.

Data processingData processing Shows at each stage theShows at each stage the

process and the activities such as sort,process and the activities such as sort,

merge, collate and compute. It also showsmerge, collate and compute. It also shows

the use of files and creation of new files andthe use of files and creation of new files and

its further use in the system.its further use in the system. Output processingOutput processing Shows whether theShows whether the

output is printed, displayed and stored.output is printed, displayed and stored.

Shows the device on which the output isShows the device on which the output is

processed.processed.


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Structured Systems AnalysisStructured Systems Analysis

and Design (SSAD)and Design (SSAD)

The structured systems analysis develops aThe structured systems analysis develops a

conceptual, logical, and graphical model of theconceptual, logical, and graphical model of the

system, if it is developed with reference to thesystem, if it is developed with reference to the

objective and taking into consideration theobjective and taking into consideration theconstraints under which the system operates. Theconstraints under which the system operates. The

model is developed with four symbols as given :model is developed with four symbols as given :


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SSAD, Cont.SSAD, Cont.

Eg. : The logical model of the customerEg. : The logical model of the customer

order processing and issuing the orderorder processing and issuing the order

acceptance can be shown in the model.acceptance can be shown in the model.


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SSAD, Cont.SSAD, Cont.

The Model illustrates :The Model illustrates :

Documentation in the system.Documentation in the system.

Sources of documents.Sources of documents.Process centre for converting theProcess centre for converting the

customer order into the order acceptance.customer order into the order acceptance.

Use of stored data in the process centre.Use of stored data in the process centre.Output or documents provided by theOutput or documents provided by the

process centre and its destinations.process centre and its destinations.


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Data Flow DiagramData Flow Diagram

DFD provide a logical clarity in terms of input,DFD provide a logical clarity in terms of input,output, use of stored data or master dataoutput, use of stored data or master dataalready available in the organization.already available in the organization.

DFD can be made by detailing the system in aDFD can be made by detailing the system in ahierarchical manner.hierarchical manner.

The main system is divided into three levels inThe main system is divided into three levels inits logical orderits logical order--Validating, commercialValidating, commercialprocessing and decision making for acceptance.processing and decision making for acceptance.

It conveys that unless the customer order isIt conveys that unless the customer order isvalidated and commercially accepted, it will notvalidated and commercially accepted, it will notbe processed for an order acceptance decision.be processed for an order acceptance decision.

In each level, the stored data in the system isIn each level, the stored data in the system isused.used.


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DFD of Customer OrderDFD of Customer Order

ProcessingProcessing

CUSTOMER

PRINT

ORDER

ACCEPTANCE

VALIDATE

CUSTOMER

ORDER

COMMERCIAL

PROCESSING

OF CUSTOMER

ORDER

PROCESS

FOR

CUSTOMER

ORDER

ACCEPTACE


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DFD of Payroll ProcessingDFD of Payroll Processing

Accounts

DepartmentPayroll

Processing

Employee


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Data DictionaryData Dictionary

Data Dictionary is an assembly of the data used in theData Dictionary is an assembly of the data used in thesystem giving its picture definition and its use.system giving its picture definition and its use.

Eg.Eg.-- The Candidate is a data entity and its presentationThe Candidate is a data entity and its presentationin the dictionary will be defined with specifications. Thein the dictionary will be defined with specifications. The

Candidate name is defined of thirty character length.Candidate name is defined of thirty character length. Three items of data present in a data dictionary:Three items of data present in a data dictionary:

Data Element : It is the smallest unit of data and cannotData Element : It is the smallest unit of data and cannotbe decomposed further.be decomposed further.

Data Structures : It is a group of data elements handledData Structures : It is a group of data elements handledas a unit.as a unit.

Data Flows and Data Stores : Data flows is dataData Flows and Data Stores : Data flows is datastructure in motion. Data stores are data structures atstructure in motion. Data stores are data structures atrest. OR Data stores are locations where data structuresrest. OR Data stores are locations where data structures

are temporarily stored. Data Dictionary is an integral partare temporarily stored. Data Dictionary is an integral part


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Process Modelling :Process Modelling :

oo The System designer define theThe System designer define theprocess of transformation in its logicalprocess of transformation in its logical

order. It includes the graphicalorder. It includes the graphicalrepresentation.representation.


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Customer Order ValidationCustomer Order Validation

TYPE

SIZE

KIND

COUNTRY


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Decision TreeDecision Tree Its the logic of the process which can easily beIts the logic of the process which can easily be

represented using a graphic representation, whichrepresented using a graphic representation, whichlooks like the branches of a tree. It is easy tolooks like the branches of a tree. It is easy toconstruct, read and update.construct, read and update.

For Eg. A policy can be shown through a decisionFor Eg. A policy can be shown through a decisiontree.tree.

Type of Size of Order DiscountType of Size of Order Discount

Customer 6 or more 35%Customer 6 or more 35%

DealerDealer

Less than 6N

ilLess than 6N

il

Discount policyDiscount policy

Educational 50 or moreEducational 50 or more 30%30%

Institution or 20Institution or 20--49 20%49 20%

Individual 6Individual 6--19 15%19 15%

Less than 6 NilLess than 6 Nil


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Structured EnglishStructured English

The logic can be represented by usingThe logic can be represented by using

structured English. It uses logicalstructured English. It uses logical

construction and imperative sentencesconstruction and imperative sentences

designed to carry out instructions fordesigned to carry out instructions for

actions. Decisions are made through IFactions. Decisions are made through IF--

THENTHEN--ELSE Statements.ELSE Statements.

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