{"id":3515,"date":"2026-01-30T05:53:00","date_gmt":"2026-01-30T04:53:00","guid":{"rendered":"https:\/\/kunden.weissblaumedia.de\/microconsult\/2024\/07\/31\/tb_softwareddesign\/"},"modified":"2026-06-17T13:13:51","modified_gmt":"2026-06-17T11:13:51","slug":"tb_softwareddesign","status":"publish","type":"post","link":"https:\/\/www.microconsult.de\/en\/tb_softwareddesign\/","title":{"rendered":"Challenges in the software design of modern embedded systems"},"content":{"rendered":"

Software plays an increasingly central role in today's embedded systems. Systems based on complex microcontroller and processor architectures must offer more functionalities \u2013 and in shorter development times than ever before. This presents developers with the challenge of designing high-quality software that is both efficient and reliable.<\/strong><\/p>\n

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Previously, the VHIT (from brain to terminal) method was often used, where developers started implementing without much of a plan. However, in times of increasing complexity and rising demands on software quality, this method is no longer practical. Instead, a structured approach to software design is becoming increasingly important.<\/p>\n

Successful methods for software design with C<\/h4>\n

A structured and methodical approach to embedded software design is crucial. This involves using various design patterns and best practices specifically suited to C programming. These methods enable software to be maintained, extensible, and efficient.<\/p>\n

Design Patterns for Embedded Software<\/h4>\n

Design patterns are proven solutions to recurring problems in software development. Some of the most important patterns for embedded software include:<\/p>\n

Adapter Pattern
\n<\/strong>It enables the adaptation of new software components to existing ones. The Adapter Pattern is also frequently referred to as a wrapper. An example of its application is the implementation of an OSAL (Operating System Abstraction Layer).<\/p>\n

Facade Pattern
\n<\/strong>The facade represents a software interface through which software architectural elements collaborate and are simultaneously decoupled.<\/p>\n

Strategy Pattern
\n<\/strong>Enables context-dependent switching between similar algorithms at runtime while maintaining the same call method.<\/p>\n

Observer Pattern
\n<\/strong>Allows an object to inform other objects about changes in its state. This is particularly useful in event-based systems.<\/p>\n

Overview map \u201eEmbedded Software Design Patterns\u201c (PDF) for download<\/a><\/strong><\/p>\n

Standards and safety-critical aspects<\/h4>\n

Many embedded systems are subject to strict standards and norms. These standards and norms define the requirements for meeting quality criteria. Functional safety<\/em> (Safety) Tamper-proof<\/em> (Security). This is particularly true in industries such as automotive, medical technology, and aerospace. Here, guidelines like MISRA-C play a central role, specifying rules for secure programming in C.<\/p>\n

Key characteristics of embedded software<\/h4>\n

Several key features must be considered when developing embedded software:<\/p>\n