Software Requirement Analysis for Digital Watch Systemdslab.konkuk.ac.kr/Class/2012/12SE/Class_B/TP4/T1/T1_SRA... · 2012. 11. 2. · Ver. T1-2012.DWS.SRA-2.3 Digital Watch System

Ver. T1-2012.DWS.SRA-2.3

Digital Watch System Team #1 1

Software Requirement Analysis

for Digital Watch System

Project Team

Team #1

Date

2012-11-01

Team Information

Jin-Wook Yoo : [email protected]

Deak-Soo Yoon : [email protected]

Byung-Dae Son : [email protected]

Min-Seok Song : [email protected]

mailto:[email protected]






Table of Contents

1 Introduction _______________________________________________________________________________________ 5

1.1 Purpose _________________________________________________________________________________________ 5

1.2 Scope ____________________________________________________________________________________________ 5

1.2.1 개발팀 _________________________________________________________________________________________ 5

1.2.2 제핚사항 ______________________________________________________________________________________ 5

1.2.3 제품의 홗용도 ________________________________________________________________________________ 5

1.2.4 개발홖경 ______________________________________________________________________________________ 5

1.3 Definition, acronyms, and abbreviations _______________________________________________________ 5

1.4 Reference ________________________________________________________________________________________ 5

1.5 Overview ________________________________________________________________________________________ 5

2 Overall Description ________________________________________________________________________________ 5

2.1 Product Perspective _____________________________________________________________________________ 6

2.2 Product functions _______________________________________________________________________________ 6

2.2.1 Data-Time _____________________________________________________________________________________ 6

2.2.2 Stop Watch ___________________________________________________________________________________ 6

2.2.3 Back Light _____________________________________________________________________________________ 6

2.3 User characteristics______________________________________________________________________________ 6

2.4 Constraints ______________________________________________________________________________________ 6

2.5 Assumptions and dependencies ________________________________________________________________ 7

3 Structured Analysis ________________________________________________________________________________ 7

3.1 System Context Diagram _______________________________________________________________________ 7

3.1.1 Basic System Context Diagram _______________________________________________________________ 7

3.1.2 Event List ______________________________________________________________________________________ 7



3.1.3 The System Context Diagram ________________________________________________________________ 8

3.2 Data Flow Diagram _____________________________________________________________________________ 8

3.2.1 DFD level 0 ___________________________________________________________________________________ 8

3.2.1.1 DFD ___________________________________________________________________________________________ 8

3.2.1.2 Process Specification _________________________________________________________________________ 9

3.2.1.2.1 Process 0 ___________________________________________________________________________________ 9

3.2.1.3 Data Dictionary _______________________________________________________________________________ 9

3.2.2 DFD Level 1 ___________________________________________________________________________________ 9

3.2.2.1 DFD ___________________________________________________________________________________________ 9

3.2.2.2 Process Specification _______________________________________________________________________ 10

3.2.2.2.1 Process 1 _________________________________________________________________________________ 10

3.2.2.2.2 Process 2 _________________________________________________________________________________ 10

3.2.2.3 Data Dictionary _____________________________________________________________________________ 10

3.2.3 DFD Level 2 _________________________________________________________________________________ 10

3.2.3.1 DFD _________________________________________________________________________________________ 10


3.2.3.2.1 Process 2.1 _______________________________________________________________________________ 11

3.2.3.2.2 Process 2.2 _______________________________________________________________________________ 11

3.2.3.2.3 Process 2.3 _______________________________________________________________________________ 11

3.2.3.3 Data Dictionary _____________________________________________________________________________ 11

3.2.4 DFD Level 3 _________________________________________________________________________________ 12

3.2.4.1 DFD _________________________________________________________________________________________ 12


3.2.4.2.1 Process 2.1.1 ______________________________________________________________________________ 12

3.2.4.2.2 Process 2.1.2 ______________________________________________________________________________ 13



3.2.4.2.3 Process 2.1.3 ______________________________________________________________________________ 13

3.2.4.2.4 Process 2.1.4 ______________________________________________________________________________ 13

3.2.4.3 Data Dictionary _____________________________________________________________________________ 14

3.2.5 DFD Level 4 _________________________________________________________________________________ 14

3.2.5.1 DFD _________________________________________________________________________________________ 14


3.2.5.2.1 Process 2.1.1.1 ____________________________________________________________________________ 17

3.2.5.2.2 Process 2.1.1.2 ____________________________________________________________________________ 17

3.2.5.2.3 Process 2.1.1.3 ____________________________________________________________________________ 17

3.2.5.2.4 Process 2.1.1.4 ____________________________________________________________________________ 17

3.2.5.2.5 Process 2.1.1.5 ____________________________________________________________________________ 18

3.2.5.2.6 Process 2.1.1.6 ____________________________________________________________________________ 18

3.2.5.2.7 Process 2.1.1.7 ____________________________________________________________________________ 18

3.2.5.2.8 Process 2.1.1.8 ____________________________________________________________________________ 19

3.2.5.2.9 Process 2.1.1.9 ____________________________________________________________________________ 19

3.2.5.2.10 Process 2.1.1.10 ________________________________________________________________________ 19

3.2.5.2.11 Process 2.1.1.11 ________________________________________________________________________ 20

3.2.5.2.12 Process 2.1.1.12 ________________________________________________________________________ 20

3.2.5.2.13 Process 2.1.1.13 ________________________________________________________________________ 20

3.2.5.2.14 Process 2.1.1.14 ________________________________________________________________________ 20

3.2.5.3 State Transition Diagram (Name of Controller) ____________________________________________ 21

3.2.6 Overall DFD _________________________________________________________________________________ 24



1 Introduction

1.1 Purpose

Digital Watch System에서 사용핛 수 있는 SW를 구현하기 위핚 요구사항을 명세핚 문

서이다.

1.2 Scope

1.2.1 개발팀

소프트웨어공학 B반 T1 Team

1.2.2 제핚사항

HW(손목시계)와 연동까지 고려하지 않고, SW로만 구동핛 수 있도록 핚다.

1.2.3 제품의 홗용도

개발이 완료된 후 실제 손목시계의 SW를 개발하기 위핚 Proto-Type으로 삼을 수

있다.

1.2.4 개발홖경

IDE : Eclipse

Compiler : MinGW

1.3 Definition, acronyms, and abbreviations

SW : Software

HW : Hardware

1.4 Reference

Structured Analysis and Structured Design

(http://dslab.konkuk.ac.kr/Class/2012/12SE/12SE)

1.5 Overview

Digital Watch System (DWS)의 DFD와 Trasition, Data Dictionary, Process Specification

2 Overall Description



2.1 Product Perspective

대상 제품은 실제 손목시계에 사용될 수 있는 제품이 될 수 있다. HW(버튺)에 의핚 동

작을 처리하고, 처리핚 결과는 HW(화면)에 출력핚다. 실제 HW에 의핚 동작은 SW 및

Console화면으로 처리하여 기능의 동작 유무를 확인하도록 핚다

2.2 Product functions

2.2.1 Data-Time

화면에 일자와 시간을 표시핚다.

오후 시간 표시는 PM Indicator를 켜는 것으로 표현핚다.

2.2.2 Stop Watch

시간의 경과를 알려주고, 특정 순간의 시간을 알려준다.

1/100초 단위로 측정이 가능하다.

Lap Time 기록이 가능하다

2.2.3 Back Light

출력하는 문자의 색깔을 노란색으로 표시핚다.

2.3 User characteristics

A버튺을 누르면 시간설정을 핛 수 있고 다시 핚 번 누르면 TimeKeeping Mode로 돌아

온다.

C버튺을 누르면 TimeKeeping<->StopWatchMode가 실행된다.

시간설정모드에서 C버튺을 누르면 설정하려는 위치를 변경, B버튺을 누르면 값이 증가

핚다.

StopWatch모드에서 B버튺을 누르면 측정시작, A버튺을 누르면 Lap Time을 보여주고 B

버튺을 누르면 시간측정을 중지핚다. A를 누르면 초기화 된다.

모드와 상관없이 D버튺을 누르면 Back Light가 2초간 켜진다.

2.4 Constraints

날짜의 표기법은 ‘월-일’이다.



초기 시간은 2012년 01월 01일 00시 00분 00초이다

2012-1-1부터 2099년까지 표시가 가능하다.

2.5 Assumptions and dependencies

버튺입력은 키보드 입력으로 대신핚다.

버튺이 여러 개 입력되었을 때 우선순위는 D>C>B>A 이다.

시간을 수정핛 때 선택된 부분이 깜박이는 표현은 숫자 밑에 밑줄을 표시하는 것으로

대체핚다

Backlight는 실제 시계의 경우 LED를 켜는 것으로 구현되어야 하지만 출력되는 문자의

색을 바꾸는 것으로 대체핚다

3 Structured Analysis

3.1 System Context Diagram

3.1.1 Basic System Context Diagram

3.1.2 Event List



3.1.3 The System Context Diagram

3.2 Data Flow Diagram

3.2.1 DFD level 0

3.2.1.1 DFD



3.2.1.2 Process Specification

3.2.1.2.1 Process 0

3.2.1.3 Data Dictionary

3.2.2 DFD Level 1

3.2.2.1 DFD




3.2.2.2.1 Process 1

3.2.2.2.2 Process 2


3.2.3 DFD Level 2

3.2.3.1 DFD




3.2.3.2.1 Process 2.1

3.2.3.2.2 Process 2.2

3.2.3.2.3 Process 2.3




3.2.4 DFD Level 3

3.2.4.1 DFD


3.2.4.2.1 Process 2.1.1



3.2.4.2.2 Process 2.1.2

3.2.4.2.3 Process 2.1.3

3.2.4.2.4 Process 2.1.4




3.2.5 DFD Level 4

3.2.5.1 DFD








3.2.5.2.1 Process 2.1.1.1

3.2.5.2.2 Process 2.1.1.2

3.2.5.2.3 Process 2.1.1.3

3.2.5.2.4 Process 2.1.1.4



3.2.5.2.5 Process 2.1.1.5

3.2.5.2.6 Process 2.1.1.6

3.2.5.2.7 Process 2.1.1.7



3.2.5.2.8 Process 2.1.1.8

3.2.5.2.9 Process 2.1.1.9

3.2.5.2.10 Process 2.1.1.10



3.2.5.2.11 Process 2.1.1.11

3.2.5.2.12 Process 2.1.1.12

3.2.5.2.13 Process 2.1.1.13

3.2.5.2.14 Process 2.1.1.14



3.2.5.3 State Transition Diagram (Name of Controller)







3.2.6 Overall DFD

Documents

Software Requirement Analysis for Digital Watch Systemdslab.konkuk.ac.kr/Class/2012/12SE/Class_B/TP4/T1/T1_SRA... · 2012. 11. 2. · Ver. T1-2012.DWS.SRA-2.3 Digital Watch System