1. LAN and WAN
2. WI-FI & WI-MAX
3. LinkSys Technology (Wireless)
4. Biometrics
5. Portable Storage Devices
6. Types of Printers for Business (Brands)
7. Output Devices for Business
8. VPN
9. Microsoft Licensing & BSA
10. Relational Databases (sample)
11. Popular Operating Systems
12. Popular Programming Languages
13. Open Source
14. N-Series Technology/ Extenda
15. Inhouse vs Outsource Technologies
16. Brief Features of an Inventory System
17. Brief Features of an HRIS System
18. Brief Features of an Accounting/Financial System
19. Popular Virus Scanners and its Features
20. DSL technologies
21. SAP Enterprise
22. Navision Enterprise
23. ACCPACC Enterprise
24. QuickBooks
25. What is an Island of information?
26. Laptops
27. Personal Computers (PC's)/Desktop
28. File Servers
29. Search Engines
30. Internet
31. Intranet
32. Teleconferencing
33. Email Server
34. Access Rights
35. IP Address
36. File Formats
37. Data Warehousing
Format:
Definition of Terms
Business Impact
Cost
etc.
Tuesday, November 25, 2008
Monday, November 24, 2008
Handout-SAD001
Systems Analysis & Design SAD 001
SYSTEMS is an interrelated set of components that function together to achieve an outcome.Components: INPUT PROCESS OUTPUT
ELEMENTS OF THE SYSTEM:
1.Purpose – the reason it exists or the reference point for measuring its success.
2.Subsystems – parts or elements which perform specified tasks that are compatible with the goals of the larger system of which these are parts.
3.Environment – the people, facilities, rules, policies, and the regulations that surround a system.
4.Boundary – the perimeter or line of demarcation, between a systems and the environment.
5.Connections – transmit the flow of material and information that coordinate the systems components.
6.Control Mechanism – rules and logic that govern the individual subsystems and the interactions among them.
Ø Computer System – Terminal + Computer + File
Ø Business System – Policies + Procedures + methods + machines +etc. to achieve a goal
Ø Information System – Collect + Process + Store + Output the needed information to complete a business task.
Components of Information Systems include:a. Work Practice – methods and procedures used by people to perform work.b. Information – can include formatted data, text, images, and soundsc. People – persons, who enter, process, and use data.d. Information Technology – includes hardware and software that perform one or more data processing tasks.
Below are the reasons for the need of an information system:1.Growing size of the organization and the number of competitors2.Growing ability of computers to process large amount of data with great speed.3.Dramatic increase in volumes of data generated.4.Advances in communication technologies to permit faster data transmission.5.Increase in pace of business transactions6.Much more sophisticated technology today
TYPES OF INFORMATIONS SYSTEMS
1. Transaction Processing Systems
Gather all the input necessary for other types of information systems.
ex. Sales Orders from customers
Bank deposits & Withdrawals
2. Management Information System (MIS)
Designed to take the relative raw data available through the TPS and convert them into summarized and aggregated form for managers, usually in report format.
* Summary Report, Exception Report, On-Demand Report, and ad-hoc report)
3. Decisions Support Systems (DSS)
Instead of providing summaries of data, as with MIS, DSS provides an interactive environment in which decision makers can quickly data and models of business operations. DSS depend on a database as a source of data.
4. Office Automation Systems (OAS)
Support general office works for handling and managing documents and facilitates communication.
* Word processing, spreadsheets, desktop publishing, electronic scheduling, and communication through voice mail, email, and video conferencing.
5. Expert Systems (ES)
Also called knowledge-based systems. Perform a task that would otherwise be performed by a human expert.
Some expert systems are designed to take the place of human expert, while others are designed to aid them.
ES are part of a general category of computer applications known as Artificial Intelligence.
* Systems that can diagnose human illness, make financial forecasts, schedule routes for delivery vehicles.
6. Executive Information Systems
Provide a generalized computing and communication environment to senior managers to support strategic decisions. These rely on the information generated by MIS and allow communication with external sources of information.
General Systems Principles
1. The more specialized a system is, the less able it is to adapt to different circumstances.
2. The more general-purpose a system is, the less optimized it is for any particular situation. But the more the system is optimized for a particular situation, the less adaptable it will be to new circumstances.
3. The larger the system is the more of its resources that must be devoted to its everyday maintenance.
4. Systems are always part of a larger systems, and they can always be partitioned into smaller systems.
5. Systems grow. This principle could not be true for all systems, but many of the systems with which we are familiar do grow, because we often fail to take it into account when we begin developing the system.
Players in the System Game
1. System Sponsors/owners – pay for the system to be built and operated and set the vision and priorities for the system. (view information in terms of costs and benefits)
2. System Users – are the people who actually use the systems on a regular basis to support the operation and management of the organization. They define the business requirements and expectations for the system. Systems users are also internal systems customers and they come from all levels of the organization.
3. Systems Designers – are technical specialist that translate the business requirements into feasible technical solutions. Thus they view an information system in terms of design blueprint to guide the construction of the final system.
4. Systems Builders – are technical specialists that built, test, and deliver the information system. Thus, they view an information system in terms of the actual working hardware and software to implement the system.
5. Systems Analyst – are people who determine the requirements that must be met by the information system.
Roles of the Systems Analyst
Serve as a facilitator or coach, bridging the communication gap that can naturally develop between the non-technical system owners and users and the technical systems designers and builders.
Primary Roles of the Systems Analyst
1. Systems Consultant – address specific information systems issues within a business.
2. Supporting Expert – serve as a resource for those who are managing the project (hardware & software and their uses)
3. Agent of Change – agent of change whenever they perform any activities in the SDLC and are present in the business for an extended period. Advocates a particular avenue of change involving the use of information systems.
Required Knowledge & SkillsTECHNICAL
a. Computers and how they work
b. Devices that interact with computers, including input devices, storage devices, and output devices.
c. Communication networks that connect computers.
d. Databases and database management systems.
e. Programming Languages
f. Operating Systems and Utilities
g. Software Packages such as Microsoft Access that can be used to develop systems.
h. Integrated development environment (IDEs) for specific programming languages.
i. Computer-Aided systems engineering (CASE) tools that store information about system specifications created by analysts and sometimes generated program code.
j. Program code generators, testing tools, configuration management tools, software library management tools, documentation support tools, project management tools, and others
Required Knowledge & SkillsBUSINESS
a. What the specific organization does?
b. What makes it successful?
c. What is the strategies and plans are?
d. What its tradition and values are?
Required Knowledge & SkillsPEOPLE
Understand How People:
a. Think
b. Learn
c. React to change
d. Communicate
e. Work (in a variety of jobs and levels)
SYSTEMS is an interrelated set of components that function together to achieve an outcome.Components: INPUT PROCESS OUTPUT
ELEMENTS OF THE SYSTEM:
1.Purpose – the reason it exists or the reference point for measuring its success.
2.Subsystems – parts or elements which perform specified tasks that are compatible with the goals of the larger system of which these are parts.
3.Environment – the people, facilities, rules, policies, and the regulations that surround a system.
4.Boundary – the perimeter or line of demarcation, between a systems and the environment.
5.Connections – transmit the flow of material and information that coordinate the systems components.
6.Control Mechanism – rules and logic that govern the individual subsystems and the interactions among them.
Ø Computer System – Terminal + Computer + File
Ø Business System – Policies + Procedures + methods + machines +etc. to achieve a goal
Ø Information System – Collect + Process + Store + Output the needed information to complete a business task.
Components of Information Systems include:a. Work Practice – methods and procedures used by people to perform work.b. Information – can include formatted data, text, images, and soundsc. People – persons, who enter, process, and use data.d. Information Technology – includes hardware and software that perform one or more data processing tasks.
Below are the reasons for the need of an information system:1.Growing size of the organization and the number of competitors2.Growing ability of computers to process large amount of data with great speed.3.Dramatic increase in volumes of data generated.4.Advances in communication technologies to permit faster data transmission.5.Increase in pace of business transactions6.Much more sophisticated technology today
TYPES OF INFORMATIONS SYSTEMS
1. Transaction Processing Systems
Gather all the input necessary for other types of information systems.
ex. Sales Orders from customers
Bank deposits & Withdrawals
2. Management Information System (MIS)
Designed to take the relative raw data available through the TPS and convert them into summarized and aggregated form for managers, usually in report format.
* Summary Report, Exception Report, On-Demand Report, and ad-hoc report)
3. Decisions Support Systems (DSS)
Instead of providing summaries of data, as with MIS, DSS provides an interactive environment in which decision makers can quickly data and models of business operations. DSS depend on a database as a source of data.
4. Office Automation Systems (OAS)
Support general office works for handling and managing documents and facilitates communication.
* Word processing, spreadsheets, desktop publishing, electronic scheduling, and communication through voice mail, email, and video conferencing.
5. Expert Systems (ES)
Also called knowledge-based systems. Perform a task that would otherwise be performed by a human expert.
Some expert systems are designed to take the place of human expert, while others are designed to aid them.
ES are part of a general category of computer applications known as Artificial Intelligence.
* Systems that can diagnose human illness, make financial forecasts, schedule routes for delivery vehicles.
6. Executive Information Systems
Provide a generalized computing and communication environment to senior managers to support strategic decisions. These rely on the information generated by MIS and allow communication with external sources of information.
General Systems Principles
1. The more specialized a system is, the less able it is to adapt to different circumstances.
2. The more general-purpose a system is, the less optimized it is for any particular situation. But the more the system is optimized for a particular situation, the less adaptable it will be to new circumstances.
3. The larger the system is the more of its resources that must be devoted to its everyday maintenance.
4. Systems are always part of a larger systems, and they can always be partitioned into smaller systems.
5. Systems grow. This principle could not be true for all systems, but many of the systems with which we are familiar do grow, because we often fail to take it into account when we begin developing the system.
Players in the System Game
1. System Sponsors/owners – pay for the system to be built and operated and set the vision and priorities for the system. (view information in terms of costs and benefits)
2. System Users – are the people who actually use the systems on a regular basis to support the operation and management of the organization. They define the business requirements and expectations for the system. Systems users are also internal systems customers and they come from all levels of the organization.
3. Systems Designers – are technical specialist that translate the business requirements into feasible technical solutions. Thus they view an information system in terms of design blueprint to guide the construction of the final system.
4. Systems Builders – are technical specialists that built, test, and deliver the information system. Thus, they view an information system in terms of the actual working hardware and software to implement the system.
5. Systems Analyst – are people who determine the requirements that must be met by the information system.
Roles of the Systems Analyst
Serve as a facilitator or coach, bridging the communication gap that can naturally develop between the non-technical system owners and users and the technical systems designers and builders.
Primary Roles of the Systems Analyst
1. Systems Consultant – address specific information systems issues within a business.
2. Supporting Expert – serve as a resource for those who are managing the project (hardware & software and their uses)
3. Agent of Change – agent of change whenever they perform any activities in the SDLC and are present in the business for an extended period. Advocates a particular avenue of change involving the use of information systems.
Required Knowledge & SkillsTECHNICAL
a. Computers and how they work
b. Devices that interact with computers, including input devices, storage devices, and output devices.
c. Communication networks that connect computers.
d. Databases and database management systems.
e. Programming Languages
f. Operating Systems and Utilities
g. Software Packages such as Microsoft Access that can be used to develop systems.
h. Integrated development environment (IDEs) for specific programming languages.
i. Computer-Aided systems engineering (CASE) tools that store information about system specifications created by analysts and sometimes generated program code.
j. Program code generators, testing tools, configuration management tools, software library management tools, documentation support tools, project management tools, and others
Required Knowledge & SkillsBUSINESS
a. What the specific organization does?
b. What makes it successful?
c. What is the strategies and plans are?
d. What its tradition and values are?
Required Knowledge & SkillsPEOPLE
Understand How People:
a. Think
b. Learn
c. React to change
d. Communicate
e. Work (in a variety of jobs and levels)
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