The Traditional ing Information System .doc dj66

CHAPTER :

THE TRADITIONAL ING INFORMATION SYSTEM ARCHITECTURE

1. What is ing Information? economic events = transactions external: internal: exchanges with accumulation and outsiders assignment of cost data monetary association monetary , ratios, percentages data is both historical and future oriented 2. Who Needs ing Information? internal/external s 3. Who Receives the Most ing Information? managers - 1st level, middle, top 4. What is an ing Information System? AIS is a delivery system for ing information answers the following questions: Where does the information come from? How is it processed?

How is it communicated to s? Purposes: a. Meet Statutory Reporting Requirements. SEC, IRS, state agencies, payroll b. Provide Reliable ing Information to s. heavily oriented to management use external reporting is secondary c. Protect Against Risks from: Abuse of ing Data Abuse of ing System 5. Computerization of AIS: creates overlapping responsibilities of ants and IS professionals a. Key Components: Hardware Software People The computer is as compared to manual systems. faster more accurate, reliable

can more easily handle large volumes of data less expensive than manual operation makes certain types of data communication possible 6. Importance of AIS to the Organization external vs. internal monitoring of activities good vs. bad system - developed, operated, and controlled should last long enough to recoup investment 7. Roles of the ing Professionals a. s of AIS - project team b. Consultants - (MAS) should complement the IS professional c. Auditors - (SAS 3) external and internal auditors The auditor must understand the system in enough detail to know how to retrieve and assemble relevant information. Should be able to answer the following questions: How are data entered? What are the outputs? Are they reliable?

What interaction is possible between the and the system? Can data get lost? What controls are necessary? ( * key question) 8. Professional Exam Requirements: A, CMA, CIA, CISA exams all cover AIS WHAT IS A SYSTEM? A SYSTEM IS A SET OF INTERACTING ELEMENTS FORMING A COMPLEX WHOLE AND UNITED IN PURSUIT OF COMMON GOALS AND OBJECTIVES. OPEN

OR CLOSED?

INTERACTS WITH ITS ENVIRONMENT

OR

IS EFFECTIVELY ISOLATED FROM ITS ENVIRONMENT

EXAMPLES OF SYSTEMS?

A system is defined in general systems theory as: a set of interacting elements forming a complex whole and united in pursuit of common goals or objectives.

An ing information system is made up of: transaction cycles and applications that provide ing information to internal and external s.

A system is closed: environment.

if it is isolated from its

A system is open: taking

if significant interaction is place through its inputs and

outputs. inputs = influence of the environment on the system outputs = system's influence on the environment - where part of output is fed back as an input to the system

INPUT

PROCESS

OUTPUT

LOOP

STRUCTURE OF THE ING INFORMATION

SYSTEM A. TYPES ARE AS NUMEROUS AS TYPES OF ORGANIZATIONS LACK OF UNIFORMITY COMPLICATES OUR ABILITY TO UNDERSTAND AND INTERPRET ING SYSTEMS. A SUBSYSTEM IN ONE ORGANIZATION MAY OR MAY NOT BE PRESENT IN ANOTHER ORGANIZATION.

B. TRANSACTION CYCLES AN ATTEMPT TO ESTABLISH A COMMON FRAMEWORK TO UNIFY ESSENTIAL ELEMENTS OF DIFFERENT SYSTEMS. TRANSACTION CYCLES ARE IDENTIFIED WITH BROADLY DEFINED FUNCTIONAL SUBSYSTEMS OF THE ING SYSTEM. ING INFORMATION SYSTEMS AND BUSINESS ORGANIZATIONS

INFORMATION IS AS MUCH A RESOURCE (ASSET) AS PLANT AND EQUIPMENT ING IS ESSENTIALLY AN INFORMATION SYSTEM. 1. IT IDENTIFIES, COLLECTS, PROCESSES AND COMMUNICATES ECONOMIC INFORMATION ABOUT AN ENTITY TO A WIDE VARIETY OF S. 2. INFORMATION vs. DATA INFORMATION IS USEFUL DATA ORGANIZED SO THAT CORRECT DECISIONS CAN BE BASED UPON IT. 3. EXTERNAL vs. INTERNAL S 4. ECONOMIC EVENTS vs. TRANSACTIONS AN (AIS) ING INFORMATION SYSTEM IS A COLLECTION OF RESOURCES (ELEMENTS) DESIGNED TO TRANSFORM FINANCIAL AND OTHER DATA INTO INFORMATION. AIS PERFORM THIS TRANSFORMATION WHETHER THEY ARE ESSENTIALLY MANUAL SYSTEMS OR THOROUGHLY COMPUTERIZED. Computerization of AIS: creates overlapping responsibilities of ants and IS professionals

a. Key Components: Hardware Software People The computer is as compared to manual systems. faster more accurate, reliable can more easily handle large volumes of data less expensive than manual operation makes certain types of data communication possible

HOW TO THIS? LOOK AT THE DEFINITION OF A SYSTEM. EXAMPLES OF SYSTEMS. UNIVERSITY A BUSINESS ALL ORGANIZATIONAL SYSTEMS SEEK OBJECTIVES THROUGH A PROCESS OF RESOURCE ALLOCATION-WHICH IS ACCOMPLISHED THROUGH MANAGERIAL DECISION MAKING.

INFORMATION HAS ECONOMIC VALUE TO THE EXTENT THAT IT ENABLES DECISION MAKING. ISN=T THIS REALLY WHY WE USE A COMPUTER? TO FACILITATE OUR DECISION MAKING? THE COMPUTER IS A TOOL FOR ANT DECISION MAKING. BY PROCESSING THE DATA THE AIS INFLUENCES ORGANIZATIONAL DECISION MAKING. COULD THE COMPUTER LEAD US TO MAKE A BAD DECISION?

AUDITORS ARE REQUIRED TO UNDERSTAND THE FLOW OF TRANSACTIONS

THROUGH COMPUTERIZED FINANCIAL SYSTEMS.

TRANSACTION PROCESSING CYCLES 1. ORGANIZATION IS FACED WITH HUNDREDS OF ECONOMIC EVENTS. THE INITIAL TASK OF THE AIS IS TO DECIDE/ RECOGNIZE WHICH ARE TRANSACTIONS THAT SHOULD BE PROCESSED BY THE SYSTEM. 2. THEN MUST FIND A WAY TO CLASSIFY THESE TRANSACTIONS SO THAT MEANINGFUL REPORTS AND FINANCIAL STATEMENTS CAN BE GENERATED. THE WAY WE DO THIS IS THROUGH THE USE OF CODES AND THROUGH THE USE OF TRANSACTION CYCLES (BUSINESS PROCESSES).

Transaction coding Block and Group Codes (Chart of s) Sequential Codes (Source Document Numbers) Mnemonic Codes (Alpha/NumericaBMemory Aids) Decimal Codes Transactions are coded to classify them for further processing. Helps to establish audit trail. Chart of s provides principal classification scheme and coding. CODES Alternative symbolic forms to identify data 1. Sequential Consecutive numbers are assigned to objects. Good for control: prenumbered documents such as checks, invoices, receiving reports. 2. Block Characters in a code are grouped together (blocked) to classify objects into certain groups. Fixed length: good for chart of s such as Assets 1000-00, Liabilities 200000, etc. 3. Group (within Block) Subdivisions: part of block to identify subsets of data. Subclassifications are implemented within each block of the code. 1000B01=Home Office, 1000B02=Store, etc.

4. Mnemonic A code that is similar to the pronunciation of the object that is coded. Use of letters/numbers as memory aids: A185R14B = Auto Tire, size 185 x 14 radial, etc. 5. Decimal Allows for unlimited expansion to the right of the decimal point in the code. Expands for new items. Correspondence for medical insurance for officers, employees, etc. 160.1, 160.2 TRANSACTION CYCLES or BUSINESS PROCESSES SALES/COLLECTIONS PROCESS - Events related to the distribution of goods and services to other entities and the collection of related payment. ACQUISITION/PAYMENT PROCESS- Events related to the acquisition of goods and services from other entities and the settlement of the obligation. CONVERSION BUSINESS PROCESS - Events related to the transformation of resources into goods and services. HUMAN RESOURCE BUSINESS PROCESS – Events related to hiring, training, compensation of employees (payroll processes). FINANCING BUSINESS PROCESS - Events related to the acquisition and management of capital funds, including cash. WHAT JOURNAL ENTRIES FALL INTO EACH CYCLE?

NON-OPERATING FINANCIAL REPORTING CYCLE - obtains ing and operating data from other cycles and processes these into financial reports. ALL TRANSACTION DATA EVENTUALLY FLOW INTO THE GENERAL LEDGER. TRANSACTIONS MAY BE INITIATED : by personnel within the organization by the computer itself through programmed instructions by outside bodies such as taxing or regulatory bodies by the age of time, i.e. depreciation TRANSACTION FLOWS in a Traditional ing System a. Flow of Transactions Captured and Coded to Recorded in Records and Files b. Flow Diagram of Conventional ing Source Document Journalize in Appropriate Journal (by Transaction Date)

Post to in Ledger Make Unadjusted Trial Balance Post Adjusting Journal Entries Make Adjusted Trial Balance Prepare Financial Statements Post Closing Journal Entries Prepare Post Closing Trial Balance TRANSACTION VS. MASTER FILES

TRANSACTION FILES: capture detailed transaction data, usually in chronological order, providing a kind of diary of the organization's financial activities. They are analogous to paper journals or s of manual ing systems. They are created to suit major types or transactions.

MASTER FILES: correspond to the general ledger and the subsidiary ledgers in manual based ing systems.

TO DRAW ING PERSPECTIVE INTO THE AIS COURSE: 1. THINK OF A SET OF FINANCIAL STATEMENTS AN ANNUAL REPORT 2. LOOK AT EACH BALANCE IN THE BALANCE SHEET, INCOME STATEMENT, ETC. 3. TIE THE BALANCE TO THE SYSTEMS OR ING CYCLE THAT GENERATES THAT BALANCE - THE JOURNAL ENTRIES THAT FEED TRANSACTIONS INTO THAT CYCLE 4. THINK OF THE DOCUMENTS THAT ARE AGGREGATED TO INITIATE THESE JOURNAL ENTRIES - THE FLOW OF THESE DOCUMENTS WILL BE MAPPED OR DIAGRAMMED IN THE DOCUMENT AND SYSTEMS FLOWCHARTS THAT WE DRAW TO REPRESENT THE SYSTEM

5. THE DOCUMENT IS USED TO RECORD THE TRANSACTION SO WE CAN GO FROM DOCUMENTS TO THE FINANCIAL STATEMENTS = AGGREGATION OR FROM THE FINANCIAL STATEMENTS BACK TO THE ING DOCUMENTS = DISAGGREGATION CRITICISMS OF TRADITIONAL APPROACH 1. DUPLICATION OF PROCESSES AND DATA 2. ONLY A SUBSET OF ALL BUSINESS EVENTS UNDERLYING THE TRANSACTION IS REPRESENTED-ONLY THOSE THOSE EVENTS DEEMED ING TRANSACTIONS ARE INCLUDED 3. PROCESSING MAY BE UNTIMELY 4. CAPTURING ONLY LIMITED INFORMATION-LIMITED CHARACTERISTICS ABOUT THE EVENTS 5. LEVEL OF AGGREGATION OR SUMMARIZATION 6. ONLY ONE VIEW OF DATA IS PRESENTED

TO ANSWER THESE CRITICISMS WE MUST: REDEFINE EVENTS IDENTIFY BUSINESS RISK ASSOCIATED WITH EACH EVENT REDESIGN THE INFORMATION SYSTEM