BISM1201 T5 by Ben Kaw https://padlet.com/benkaw/BISM1201T5 Tutorial Answers en-us 2017-04-03 08:12:05 UTC 2025-11-06 03:07:13 UTC hello@padlet.com 1. Describe the phases/stages of the system development lifecycle as we have discussed in the lecture. benkaw https://padlet.com/benkaw/BISM1201T5/wish/164257029 2017-04-03 08:13:37 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257029 2. Define feasibility study. benkaw https://padlet.com/benkaw/BISM1201T5/wish/164257044 2017-04-03 08:13:44 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257044 3. What is the difference between systems analysis and systems design? benkaw https://padlet.com/benkaw/BISM1201T5/wish/164257072 2017-04-03 08:13:51 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257072 4. Why is it important for everyone in business organisations to have a basic understanding of the systems development process? benkaw https://padlet.com/benkaw/BISM1201T5/wish/164257121 2017-04-03 08:14:03 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257121 5. Discuss the various types of feasibility studies. Why are they all needed? benkaw https://padlet.com/benkaw/BISM1201T5/wish/164257143 2017-04-03 08:14:11 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257143 business planning process: system definition, requirement analysis, development design, test, implementation, system maintance https://padlet.com/benkaw/BISM1201T5/wish/164257200 2017-04-03 08:14:31 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257200 https://padlet.com/benkaw/BISM1201T5/wish/164257368 2017-04-03 08:15:24 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257368 Planning, Analysis, Design, https://padlet.com/benkaw/BISM1201T5/wish/164257660
Development, 
Testing, 
Implementation, 
Maintenance]]> 2017-04-03 08:16:27 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257660 A systems analyst’s (or business analyst’s) role is to define (or specify)a new or modified system (usually computer-based). The analyst’s endproduct may be called an External System Design (ESD), FunctionalSpecifications, or Detailed User Requirements. It must be: understood in complete detail and approved by responsible userrepresentatives, understood and accepted by prospective developers (or softwareproduct purchasers).A system designer uses that end product, the ESD, as the startingpoint for specifying software (programs, object-oriented classes, files,and databases) that will satisfy those requirements.Recent fad methodologies combine the two roles into an incrementalapproach in which the specifications emerge as user representativesand developers alternate between discussing and implementing fragmentsof the desired application. This approach may work well forvery small applications.A short summary: The analyst specifies WHAT the proposed systemwill do; the designer specifies HOW the system will be organized andimplemented. https://padlet.com/benkaw/BISM1201T5/wish/164257693 2017-04-03 08:16:34 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257693 Feasibility study is an assessment of the practicality of a proposed project or system. It aims to understand and assess the strengths and weaknesses of a new business venture, it takes into considerations opportunities and threats present in the environment, the resources required to carry through, and ultimately the prospects for success. In its simplest terms, the two criteria to judge feasibility are cost required and value to be attained. https://padlet.com/benkaw/BISM1201T5/wish/164257860 2017-04-03 08:17:19 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257860 5.various types of feasibility https://padlet.com/benkaw/BISM1201T5/wish/164257979  Technical, Economic, Legal, Operational, planing, resources, financial]]> 2017-04-03 08:17:46 UTC https://padlet.com/benkaw/BISM1201T5/wish/164257979 https://padlet.com/benkaw/BISM1201T5/wish/164258132 2017-04-03 08:18:39 UTC https://padlet.com/benkaw/BISM1201T5/wish/164258132 https://padlet.com/benkaw/BISM1201T5/wish/164258290 The sequential phases in Waterfall model are: 

  • Requirement Gathering and analysis: All possible requirements of the system to be developed are captured in this phase and documented in a requirement specification doc.
  • System Design: The requirement specifications from first phase are studied in this phase and system design is prepared. System Design helps in specifying hardware and system requirements and also helps in defining overall system architecture.
  • Implementation: With inputs from system design, the system is first developed in small programs called units, which are integrated in the next phase. Each unit is developed and tested for its functionality which is referred to as Unit Testing.
  • Integration and Testing: All the units developed in the implementation phase are integrated into a system after testing of each unit. Post integration the entire system is tested for any faults and failures.
  • Deployment of system: Once the functional and non functional testing is done, the product is deployed in the customer environment or released into the market. 
  • Maintenance: There are some issues which come up in the client environment. To fix those issues patches are released. Also to enhance the product some better versions are released. Maintenance is done to deliver these changes in the customer environment. 
]]> 2017-04-03 08:19:22 UTC https://padlet.com/benkaw/BISM1201T5/wish/164258290 Cost / Economic feasibility (i.e. the financial cost)Approximated, “back-of-the-envelope” analysisPurpose: eliminate infeasible ideas as soon as possibleSchedule feasibility (i.e. the timetable)Difficult to determine but a rough estimate is neededTechnical feasibility (i.e. can we build/run/maintain this)Is the proposed system able to be built using existing information technology?Organisational / cultural feasibility (i.e. will the staff use this)Does the proposed system fit the customs, culture, charter and legal requirements of the organisation?Legal feasibility - Measures how well a solution can be implemented within existing legal and contractual obligations https://padlet.com/benkaw/BISM1201T5/wish/164258305 2017-04-03 08:19:27 UTC https://padlet.com/benkaw/BISM1201T5/wish/164258305 SWOT analysis https://padlet.com/benkaw/BISM1201T5/wish/164259385 2017-04-03 08:23:54 UTC https://padlet.com/benkaw/BISM1201T5/wish/164259385