3 Lecutre notes

3 Lecutre notes - Unit3 15:51 Wed Syste

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Unit 3 15:51 Wed What is system development Set of activities used to build an information system System- set of components that interact to achieve a common goal Information system- is a collection of hardware software data people and procedures  that work together to produce quality info System development life cycle (sdlc) Planning Analyses Design Implantation (people starting here fail) Operation, support, and security System development should involve (EVERYONE) reps from department in which the  proposed system will be used Project Management Process of planning scheduling and then controlling the activities during system  development Plan and schedule a project efficiently the project leader identifies Project scope Required activities Time estimates for each activities Costs estimates for each activity
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Order of activities Activities that can take place oat the same time Gantt Chart Popular tool used to plan and schedule the time relationships among project activities.  Every task How long What recourses for each task What needs to get done and what you need to use to get this project completed Feasibility Measure of how suitable the development of a system that will be to the organization Operational feasibility Schedule feasibility Technical feasibility Economic feasibility Budget Documentation is Critical Collection and summarization of data and information Project notebook contains all documentation for a single project Users and IT professionals refer to exiting documentation …  Gathering info
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During system development, members of the project team gather data and information  using several techniques Review documentation Observe Survey Interview JAD sessions, focus groups research SDLC (all info on powerpt) Planning Phase Begins when the steering committee receives a project request Four major activities performed Review Analysis Phase Two major actives Conduct a preliminary investigation Perform detailed analysis Repository Most common : Microsoft SharePoint
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Contains all documentations and … Design Specifications What info goes in and needs to come out Prototype Proof of concept Working model of proposed system Review of Design Many people should review the detailed design specifications An inspection is a formal review of any system development deliverable A team Implantation phase Construct the new or modified system and then deliver it Develop programs Install and test the new system Train users Convert to the new system Just beginning
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Testing Training Involves showing users exactly how they will use the new hardware and software in the  system One-on-one sessions Classroom-style lectures Web-based training  A lot of things break down—then leads to frustration
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3 Lecutre notes - Unit3 15:51 Wed Syste

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