Chapter 4 - Performance Measurement & Control Flashcards
What are the main purposes of information systems?
- Support day to day operations via processing and storing transactions
- Support the managerial activities of planning, decision making, performance management and control
What is a system?
A set of interacting components that operate together to accomplish a purpose
What is an information system?
All systems and procedures involved in the collecting, storage, production and distribution of information
What is information technology?
The equipment used to capture, store, transmit or present information. IT provides a large part of the information systems infrastructure.
What is a system boundary?
A system boundary separates the information system from its environment. Anything outside the system boundary belongs to the systems environment and not the system itself.
What is a management information system (MIS)?
Any system which provides information for use in the decision making at all levels within an organisation
What is an executive information system (EIS)?
They provide board level with summarised information for strategic decisions
What is an expert system?
They provide access and assistance with tax legislation, companies act requirements, etc.
What is a decision support system (DSS)?
They provide information in a flexible format to facilitate “what if” analysis. Often used to assist resource planning at a management/tactical level.
What is an enterprise resource planning system (ERPS)?
An inter grated computer-based system used to manage internal and external resources, including tangible assets, financial resources, materials and Human Resources. It integrates the various business functions into one system and is usually looked after by information management specialists centrally. Management can directly access informations rather than relying on management accounts.
What is a transaction processing system?
Systems that are used to capture all the day-to-day routine transactions within a business, mostly at an operational level.
What is a customer relationship management system (CRM)?
It helps to manage customer data, the business can use it to track and organise its contacts with both existing and potential future clients.
What are the costs of information systems?
- The equipment or software cost
- Implementation/maintenance
- Training costs
- Management and staff time required (opportunity cost)
- Expert knowledge/time required
- System security
- Costs associated with a reduction in the size of the workforce
What are the benefits of information systems?
- Management and staff time saved
- Increased knowledge and expertise
- Improvement in customer experience
- Reduction in other costs (e.g. bad debts)
- Increased quality of information (more likely to be ACCURATE)
What are some examples if privacy and security risks?
Natural disasters, malfunction of computer hardware or software, computer viruses, hackers, electronic eavesdropping or human errors
What are the two types of controls organisations should have in place to safeguard against threats?
- General controls
- Applications controls
What are general controls?
Controls over the IT environment such as access controls, segregation of duties and business continuity planning (e.g. passwords)
What are application controls?
Transaction processing controls automatically performed by the system such as, completeness checks, data validity checks and authorised checks.
What is a LAN?
Local area network
What is a WAN?
Wide area network
What is included within the networked enterprise?
- Internet
- Intranet
- Extranet
- Wireless Technology (WI-FI)
What is the internet?
An electronic communications network that connects computer networks, individual users and organisational computer facilities around the world
What is the intranet?
An internal ‘mini’ internet sines the company’s own networked computers and internet technology.
What is the extranet?
A secure extension of a company’s private intranet. It can be accessed by authorised outsiders.