System Anaysis and Design Reviewer

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Data - a given fact
-raw materials in the production of information
Information-data that have meaning within the context

System- set of component that work together to achieve a common goal Subsystem- products of more than one system combined reach an ultimate goal. Information System (IS) - all components that work together to process data and produce information Computer-Based Information System (CBIS) - information system that uses computer technology to perform tasks Hardware – is the physical layer of information system

System Software-controls the hardware and software and the Operating System Application Software –consist of programs that processes data to produce information

Processes- define the tasks that must be performed by users

Users/end users/people ware - people who use the system

Functional are information System or Departmental information system- support the activities within specific FUNCTIONAL AREAS.

Transaction Processing System (TPS) - process TRANSACTION data from business event. Enterprise resource planning System (ERP) - all functional areas of the organization Interorganizational Information System (IOS)

-IS that connects 2 or more organizations and support
INTERORGANIZATIONAL operations such as supply chain management -manage the flow of product, services and information among organization Supply Chain- describes the flow of materials, information, money and services from raw material suppliers through factories and warehouses to the end consumer.

Electronic Commerce System (ECS)
-enable TRANSACTIONS among organizations and between organizations and customers.

SUPORT FOR ORGANIZATIONS EMPLOYEES
OFFICE AUTOMATION SYSTEM (OAS)
-support daily work activities of individual of group
Management Information System (MIS)
-produce reports summarized from transaction data
Decision Support System
-provide access to data analysis tools
Expert System (ES)
-human expert in a particular area and make a decision

Knowledge workers
- professions employees.
-they create information and knowledge about specific area and integrate it into an organization

Executive Information System (EOS)
-summarized information about the aspects business important to executive

SYSTEM DEVELOPMENT LIFE CYCLE
1. System Planning
2. System Analysis
3. System design
4. System Implementation
5. System Operation and support
Waterfall Model-result of phrase end product or deliverable flows down to the next phase

Interaction Model- An alternative model were planning, analysis and design interact

System Planning- to identify problems’ nature/ scope

System request- begins the process and describes desired changes/improvements End product- preliminary investigation report

System Analysis - to understand business requirements and build a logical model of new system

Fact finding or requirements determination- used to define all functions of the current system. System requirement documentation- end product of system analysis phrase

System design- to create blueprint for new system that will satisfy all documented requirements -identify all outputs, inputs, files, manual procedures and application

System design specification-end product of system design

System Implementation- construct/ deliver information system -to deliver a completely functioning and documented information system System Operation and support- IT staff maintains and enhances the system

Maintenance- changes correct errors and adapt to changes in the environment Enhancements- provide new features and benefits

Agile Development- is an umbrella term for several iterative and incremental software development methodologies. Most popular agile methodologies include:
1. Extreme Programming(XP)
2. Scrum
3. Crystal
4. Dynamic Systems Development Method(DSDM)
5. Lean Development
6. Feature Driven Development(FDD)

Agile Alliance- is a non profit organization...
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