Network connectivity features: This aspect of the SLA includes details about the bandwidth provided, acceptable data loss rate, error rate, end-to-end latency, and jitter. While most service providers guarantee packet delivery rates of 99%, this may not be enough for real-time applications such as Voice over IP (VoIP), interactive video, etc. For dominant web browsing traffic, losses of up to 5% may be acceptable. Like data loss, latency and jitter are essential for VoIP and multimedia traffic. These applications require response times of 100 milliseconds or less. Many service providers in the U.S. and Europe often guarantee an 85 millisec round trip time between routers on their core networks. SLAs are thought to come from network service providers, but they are now widely used in a number of IT-related fields. Industries that have implemented SLAs include IT service providers and managed service providers, as well as cloud and Internet service providers. THE 7th IRMOS PC also explored aspects of translating application-level SLA terms into resource-based attributes to bridge the gap between client-side expectations and cloud provider resource management mechanisms.   The European Commission presented a summary of the results of various research projects in the field of ALS (from specifications to monitoring, management and implementation).
 Requirement 2 (Cost): Low initial investment in user equipment infrastructure This requirement highlights the need to reuse existing network elements such as set-top boxes, home gateways, smartphones, tablets or specialized devices for different application scenarios. The different services must be independent of the final hardware/software platform and the system must adapt the user interface to the capabilities of the device. This allows for a gradual introduction of various AAL/ELE services and forms the basis for a positive business case per service. Mechanisms for remote maintenance and updating home network elements will be important functions. The first attempts are TR069 or the OSGi Alliance, which support „dynamic application download“, i.e. the integration of dynamic software components (often called bundles) into AAL platforms. Customization and extensibility are important features of AAL/ELE platforms: Consider a platform installed on an older person`s home to help them with various activities. The platform contains programs to support certain functions (remind the patient of medications, monitor certain activities, etc.). In the future, however, we would like the platform to add additional features (i.e. the patient develops new symptoms that require additional support, or the family wants to add additional monitoring sensors, etc.).
„Dynamic application download“ is about building the infrastructure with minimal functionality (i.e., low upfront investment) and having the ability to support dynamic downloading and running additional software components in the future, when and when needed. Metrics should be designed in such a way that bad behavior is not rewarded by both parties. .