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Rekayasa Perangkat Lunak. Bagian 14. 2. Outline of this presentation. Project Initiation System Request Feasibility Analysis Requirement Gathering Technique Interviewing & Listening Questionnaire Observation Document Analysis. Requirement Determination Key Definition

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bagian 14
Bagian 14

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

2

outline of this presentation
Outline of this presentation

Project Initiation

System Request

Feasibility Analysis

Requirement Gathering Technique

Interviewing & Listening

Questionnaire

Observation

Document Analysis

Requirement Determination

Key Definition

Basic Process of Analysis

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

slide4

Project

Initiation

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

system request
System Request

A document describing business reasons for project and system’s expected value.

Lists project’s key elements

Project sponsor

Business need

Business requirements

Business value

Special issues or constraints

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

feasibility analysis
Feasibility Analysis

Detailed business case for the project

Technical feasibility

Economic feasibility

Organizational feasibility

Compiled into a feasibility study

Feasibility is reassessed throughout the project

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

technical feasibility can we build it
Technical Feasibility: Can We Build It?

Users’ and analysts’ familiarity with the business application area

Familiarity with technology

Have we used it before? How new is it?

Project size

Number of people, time, and features

Compatibility with existing systems

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

economic feasibility cost
Economic Feasibility: Cost ?

Do we have it ?

Where the money come from?

How do we manage the Cash Flow

Project size

Number of people, time, and features

Compatibility with existing systems

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

organizational feasibility if we build it will they come
Organizational FeasibilityIf we build it, will they come?

Strategic alignment

How well do the project goals align with business objectives?

Stakeholder analysis

Project champion(s)

Organizational management

System users

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

slide10

Requirement

Gathering

Technique

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

interviewing and listening
Interviewing and Listening

Means to gather information about a project

Listening to answers is just as important as asking questions

Effective listening leads to understanding of problem and generates additional questions

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

interviews
Interviews

Most commonly used technique

Basic steps:

Selecting Interviewees

Designing Interview Questions

Preparing for the Interview

Conducting the Interview

Post-Interview Follow-up

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

conducting the interview
Conducting the Interview

Appear professional and unbiased

Record all information

Check on organizational policy regarding tape recording

Be sure you understand all issues and terms

Separate facts from opinions

Give interviewee time to ask questions

Be sure to thank the interviewee

End on time

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

questionnaires
Questionnaires

Advantages:

Less costly than interviews

Results are less biased due to standardization

Disadvantages

Less effective than interviews due to lack of follow-up

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

questionnaire
Questionnaire

A set of written questions, often sent to a large number of people

May be paper-based or electronic

Select participants using samples of the population

Design the questions for clarity and ease of analysis

Administer the questionnaire and take steps to get a good response rate

Questionnaire follow-up report

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

good questionnaire design
Good Questionnaire Design
  • Begin with non-threatening and interesting questions
  • Group items into logically coherent sections
  • Do not put important items at the very end of the
  • questionnaire
  • Do not crowd a page with too many items
  • Avoid abbreviations
  • Avoid biased or suggestive items or terms
  • Number questions to avoid confusion
  • Pretest the questionnaire to identify confusing
  • questions
  • Provide anonymity to respondents

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

observation
Observation

Watch processes being performed

Users/managers often don’t accurately recall everything they do

Checks validity of information gathered other ways

Be aware that behaviors change when people are watched

Be unobtrusive

Identify peak and lull periods

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

document analysis
Document Analysis

Study of existing material describing the current system

Forms, reports, policy manuals, organization charts describe the formal system

Look for the informal system in user additions to forms/report and unused form/report elements

User changes to existing forms/reports or non-use of existing forms/reports suggest the system needs modification

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

slide19

Requirement

Determination

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

key definitions
Key Definitions

The As-Is systemis the current system and may or may not be computerized

The To-Be system is the new system that is based on updated requirements

The System Proposalis the key deliverable from the Analysis Phase

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

basic process of analysis
Basic Process of Analysis

Understand the “As-Is” system

Identify improvement opportunities

Develop the “To-Be” system concept

Techniques vary in amount of change

BPA – small change

BPI – moderate change

BPR – significant change

Additional information gathering techniques are needed as well

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

business process automation
Business Process Automation

Goal:

Efficiency

for users

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

business process improvement
Business Process Improvement

Goal:

Efficiency

and

effectiveness

for users

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

business process reengineering
Business Process Reengineering

Goal:

Radical redesign of business processes

FAKULTAS TEKNOLOGI INFORMASI

REKAYASA PERANGKAT LUNAK – KP146 – 3 SKS – BAG 14

slide25

Finished,

Questions?