SDM 2 - Stages of SDLC (Part 1) Flashcards

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1
Q

What is Preliminary Analysis?

A

Starts when a problem within the existing system us forwarded to a system analyst to investigate. Ends when the system analyst produce a preliminary report to the management on the identified problem and the fesibility of the project to solve to problem

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2
Q

What is the purpose of preliminary analysis?

A

To formulate problem statement and to investigate on feasibility

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3
Q

What are the 4 things to analyst in a feasibility study

A

Operational, Economic, Technical and Schedule

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4
Q

What report is submitted by the system analyst after preliminary investigation?

A

Preliminary Investigation Report

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5
Q

When does the analysis start?

A

When the management gives the go-ahaead to develop the system

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6
Q

What is the process of analysis?

A

The process involves information gathering and critical analysis of the root problem of status quou, then propose the accurate solution

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7
Q

What document is submitted after the analysis?

A

System requirement document that will serve as main blueprint for the development team

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8
Q

Why do we need analysis?

A

To provide a detailed structure of what exactly is the root problem to solve and Provide exact requirements demanded by the organization for the new system to deliver

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9
Q

How do we analyse?

A
  1. Information gathering from the users of current system and the system itself
  2. Analysis of gathered information and recording the data
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10
Q

What is in the system requirement document?

A
  • Formal statement problem
  • Logical models
    -System requirement specification (SRS)
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11
Q

What are the techniques to gather information? IMPORTANT

A

Interviews, Questionnaires, Sampling, Surveys, Observations, Document Reviews

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12
Q

What software do we use for the analysis?

A

CASE - Computer Aided Systems Engineering
Spreadsheet
Word Processor
Database
Presentation Graphics

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13
Q

What are the objectives of System Design?

A

Practicality, Efficient, Optimization, Accuracy, Reliability, Scalable

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14
Q

What are the 2 phases in the design stage?

A

Logical design and physical design

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15
Q

What are the purposes of system design?

A
  • Production of the graphical models of the new system, complete with the relationship between the components of new system
  • It will also include detailed specifications of the hardware and software in the system, database and data structure, final feasibility reports and the schedule to start the implementation phase
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16
Q

What is logical design?

A

Is the design of the blueprint of the system

17
Q

What is in the logical design?

A

Graphical models of the system and the specifications of the components used in the model

18
Q

What are the models that are commonly used? in logical design

A

Data Flow Diagram (DRD) and Entity Relationship Diagram (ERD)

19
Q

What is DRD?

A

It describes how data is being transferred in and out of the system

20
Q

What is ERD?

A

It describes how each component in the system relate to each other

21
Q

What is physical design?

A

Is the design of the actual components of the system - Hardware,software,user interface, data output format and testing data