1695 North Research Park Way • North Logan, Utah 84341 • Phone 435.713.3500 • www.sdl.usu.edu

The Space Dynamics Laboratory's (SDL) Modular Software team specializes in ISO-certi�ed software development and

engineering services including entire space�ight systems, responsive space functionality, individual module development,

and consulting. These services also encompass process improvement, requirements development, technical coordination,

advisement, and development, as well as independent veri�cation and validation, ground support equipment development,

and data post processing.

As a not-for-pro�t University A�liated Research Center (UARC), SDL has established itself as a trusted government agent for

developing essential software engineering technologies. Due to this partnership, any code that the Modular Software team

develops is the sole property of the requesting customer.

S O F T W A R ES O F T W A R E

SDL/12-599A S P A C E D Y N A M I C S L A B O R A T O R Y

The Modular Software team has increased process responsiveness by incorporating

software engineering best practices from the general IT industry (shown in the blue

box) into the traditional aerospace software development process. Because of this

process modi�cation, the resulting code is very stable and has little to no problems

with regression errors.

PRIMARY BENEFITSTRANSPARENT DEVELOPMENT PROCESS

• SDL gives customers complete access to the Redmine open-source online tool

used for project management

• Customers can see all development activity, status, code commits, and repository

in real time as it happens

THOROUGH CODE REVIEW

• Efficient, remote, and continual peer review. All code is reviewed before being

committed to the repository

• Promotes shared knowledge in the project, increasing team flexibility

CONTINUOUS INTEGRATION (CI)

SDL’s CI process ensures code quality and stability and dramatically reduces

regression errors.

The CI server is responsible for:

• Checking for clean, warning-free code compilation

• Executing unit and system integration suite tests

• Performing memory and static analysis

• Generating software documentation

• Checking code style

PLANNING

1

REQUIREMENTS

2

TRADITIONAL WATERFALL

SYSTEM DESIGN

3

FEATURE DESIGN

4

FEATURE TEST

FEATURECODE REVIEW

FEATUREINTEGRATION

5

SYSTEM TEST

6

MAINTENANCE

FEATUREIMPLEMENTATION

SYSTEM IMPLEMENTATION

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1695 North Research Park Way • North Logan, Utah 84341 • Phone 435.713.3500 • www.sdl.usu.edu

SDL'S MODULAR SOFTWARE TEAM EXPERIENCETYPES OF SOFTWARE

• Spaceflight payload & satellite Command &

Data Handling (C&DH)

• Spaceflight Attitude Determination & Control

Systems (ADCS)

• Ground Station Satellite (C&DH)

• Consultative Committee for Space Data

Systems (CCSDS)

• AX.25 Link-Layer protocol

• Space Plug-&-Play (SPA) core infrastructure &

applications

• Electronic Ground Support Equipment (EGSE)

• Assembly, Integration, & Test (AI&T)

• Verification & Validation (V&V)

• Hardware interface, instrumentation, &

development

• Device drivers

• Database development & management

• Post-acquisition data processing & analysis

• Image processing

TOOLS & TECHNOLOGIES

• VxWorks, Linux, Windows

• SpaceWire

• CCSDS

• XML, XSD

• Code Collab, Jenkins, git, Redmine,

Subversion, xUnit–based testing including

C++

• C, C++, C#, Java

• Eclipse plugin development

• Embedded Software, 8051, AVR, SPARC,

LEON-3, PPC

S O F T W A R E

Comprehensive unit and integration test suites help eliminate regression errors and ensure code stability

Using the Jenkins CI server provides continuous monitoring of development metrics and codebase

The CodeCollaborator allows for e�cient and thorough code review