RtnPahFwl_MDD

Module Design Document

For

RtnPahFwl

February 3, 2016

Prepared For:

Software Engineering

Nexteer Automotive,

Saginaw, MI, USA

Prepared By:

Akhil Krishna N D (Tata Elxsi),

Trivandrum, INDIA

Change History

Table of Contents

1 Introduction 4

1.1 Purpose 4

2 RtnPahFwl & High-Level Description 5

3 Design details of software module 6

3.1 Graphical representation of RtnPahFwl 6

3.2 Data Flow Diagram 6

3.2.1 Component level DFD 6

3.2.2 Function level DFD 6

4 Constant Data Dictionary 7

4.1 Program (fixed) Constants 7

4.1.1 Embedded Constants 7

5 Software Component Implementation 8

5.1 Sub-Module Functions 8

5.1.1 Init: RtnPahFwlInit1 8

5.1.1.1 Design Rationale 8

5.1.1.2 Module Outputs 8

5.1.2 Per: RtnPahFwlPer1 8

5.1.2.1 Design Rationale 8

5.1.2.2 Store Module Inputs to Local copies 8

5.1.2.3 (Processing of function)……… 8

5.1.2.4 Store Local copy of outputs into Module Outputs 8

5.2 Server Runables 8

5.3 Interrupt Functions 8

5.4 Module Internal (Local) Functions 8

5.5 GLOBAL Function/Macro Definitions 8

6 Known Limitations with Design 9

7 UNIT TEST CONSIDERATION 10

Appendix A Abbreviations and Acronyms 11

Appendix B Glossary 12

Appendix C References 13

Introduction

Purpose

MDD for Return Path Firewall.

RtnPahFwl & High-Level Description

Please refer FDD

Design details of software module

Graphical representation of RtnPahFwl

Data Flow Diagram

Please refer FDD

Component level DFD

Please refer FDD

Function level DFD

Please refer FDD

Constant Data Dictionary

Program (fixed) Constants

Embedded Constants

Local Constants

Software Component Implementation

Sub-Module Functions

Init: RtnPahFwlInit1

Design Rationale

None

Module Outputs

None

Per: RtnPahFwlPer1

Design Rationale

None

Store Module Inputs to Local copies

None

(Processing of function)………

Please refer FDD

Store Local copy of outputs into Module Outputs

Please refer FDD

Server Runables

None

Interrupt Functions

None

Module Internal (Local) Functions

None

GLOBAL Function/Macro Definitions

None

Known Limitations with Design

None

UNIT TEST CONSIDERATION

None

Abbreviations and Acronyms

Glossary

Note: Terms and definitions from the source “Nexteer Automotive” take precedence over all other definitions of the same term. Terms and definitions from the source “Nexteer Automotive” are formulated from multiple sources, including the following:

• ISO 9000

• ISO/IEC 12207

• ISO/IEC 15504

• Automotive SPICE® Process Reference Model (PRM)

• Automotive SPICE® Process Assessment Model (PAM)

• ISO/IEC 15288

• ISO 26262

• IEEE Standards

• SWEBOK

• PMBOK

• Existing Nexteer Automotive documentation

References