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Why is AIS important?
AIS looks at how businesses create sales to generate data that can be used for decision-making and improving operational efficiency. It provides a framework for collecting, processing, and analysing financial data, which aids in strategic planning and enhances overall business performance.
What is a system?
A system is a set of interconnected components that work together to achieve a specific goal or function, often involving inputs, processes, and outputs.
What is an information system?
An information system is a coordinated set of components for collecting, storing, and processing data, enabling the management and dissemination of information to support decision-making in an organisation.
What does AIS do?
AIS captures financial data, processes it, and provides information for decision-making and performance evaluation.
based on data from many transactionsto help businesses improve their efficiency and effectiveness.
Breakdown an information system
An information system can be broken down into four key activities:
Input
process (storing, sorting, summarising)
store
output (the result of the process that provide information for decision making)
List how data should be portrayed or stored.
Access restricted
Accurate
Available
Reputable
Complete
Concise
Consistent
current
objective
relevant
timely
useable
understandable
verifiable
What is the value of information?
The benefit produced by the information minus the cost of producing it.
What is a business process?
A set of activities and tasks that, once completed, will accomplish an organisational goal. It involves the transformation of inputs into outputs to create value.
Get things done operationally and strategically
How does AIS add value to an organisation?
improving quality and reducing cost of goods/ services
improving efficiency
sharing knowledge
improving effectiveness and efficiency of supply chain
improving internal control structure
how we uses resources
What are the different modes of access and data capture?
cloud computing - using a browser to remotely access software, data storage, hardware and applications
infrastructure as a services (IaaS) -provide resources
platform as a services (PaaS) - includes the infrastructure and resources needed to develop your own platform
Software as a service (SaaS) - host applications that are uses by a range of organisations and delivered over the internet
What is virtualisation?
Running multiple systems simultaneously on a physical computer
allows hardware resources to be more efficiently used
reduce total cost of ownership
provides economies of scale
energy efficient
How to improve data control for input data?
Using prenumbered source documents
Assign a sequential number to each new transaction = prevent misplacement and completeness
Approving or verifying a transaction = make sure inventory being sold is not out of stock
Checking the customer's credit before making a credit sales
What is source data automation
Collection of transaction data in machine-readable format the time and place of origin
Examples ATM, POS, bar codes and XBRL (financial data encoded, allowing other computer to use and analyse the information)
What is a turnaround document?
Records of the company data sent to an external party and then returned to the system as input.
Reduce data entry
Increase efficiency of processing transaction
List the type of coding for data storage
Systematic assignment of numbers or letters to items to classify and organise them
Sequence codes = numbered consecutively
Block code = blocks of numbers are reserved for specific categories of data (example product code)
Group codes = two or more subgroup of digits used to code an item
Mnemonic codes = derived from description of the item
List the type of data processing activities
Creating new data records
Reading, retrieving or viewing existing data
Updating previously stored data
Deleting data
What is batch processing?
Updating done periodically
Cheaper and more efficient
Only for applications that do not need frequent updates
What is real time processing?
Update as each transaction occurs
Information is always current = increase decision making usefulness
More accurate = data can be corrected in real time or refused
Provide significant competitive advantage
What is online batch?
The transaction occurs and is recorded in a temporary file
All data in temporary data is used to update master data
How are information output used?
Reports are used by employees to control operational activities and by managers to make decision and to formulate business strategies
External users = evaluate company profitability, judge creditworthiness, or comply with regulatory requirements
What is an ERP system?
Integrate all aspects of an organisation's activities
It is modularised which catered to company's specific needs
Collects, process and stores data and provides the information managers and external parties need to assess the company
Centralised database to share information across business processes and coordinate activities
List the advantages and disadvantages of an ERP system
Advantages:
Provides an integrated, enterprise-wide, single view of the organisation's data and financial situation
Data input is captured or keyed once
Management gains greater visibility into every area of the enterprise
Better access control
Standardised across business units
Disadvantages:
Cost
Amount of time required = high risk of project failure due to the time taken to fully implement an ERP system
Changes to business processes
Complexity
What are the control objectives?
Safeguard assets = prevent or detect unauthorised acquisition, use or disposition
Maintain records in sufficient details to report company assets accurately and fairly
Provide accurate and reliable information
Prepare financial reports in accordance with established criteria
Promote and improve operational efficiency
Encourage adherence to managerial policies
Comply with applicable laws and regulations
What are the function of application control?
Preventive controls deter problems before they arise
Detective controls discover problems that are not prevented
Corrective controls identify and correct problems
Explain COBIT
General model for how organisations can manage their technology and think about the risk of technology
Internationally used framework
Framework for the governance and management of IT